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Neptune Service Tech Neptune Service Tech GuideGuide

Customer ComplaintCustomer ComplaintCustomer ComplaintCustomer Complaint

Component Component TroubleshootingTroubleshootingComponent Component TroubleshootingTroubleshooting

MAINLAST TROUBLESHOOTING

CONSUMER COMPLAINT

Wash PerformanceWash PerformanceWash PerformanceWash Performance

Entering Service ModeEntering Service ModeEntering Service ModeEntering Service Mode

SchematicsSchematicsSchematicsSchematics

5500 5500 &55FL&55FL5500 5500 &55FL&55FL

6500650065006500

7500750075007500

Crosley HECrosley HECrosley HECrosley HE

Service Mode TestsService Mode TestsService Mode TestsService Mode Tests

Diagnostic CodesDiagnostic CodesDiagnostic CodesDiagnostic Codes

Codes on DisplayCodes on DisplayCodes on DisplayCodes on Display

Help CodesHelp CodesHelp CodesHelp Codes

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Component Trouble shootingComponent Trouble shooting

Water ValveWater ValveWater ValveWater Valve

Membrane PadMembrane PadMembrane PadMembrane Pad

Door LockDoor LockDoor LockDoor Lock

PumpPumpPumpPump

Unbalance CircuitUnbalance CircuitUnbalance CircuitUnbalance Circuit

Motor & ControllerMotor & ControllerMotor & ControllerMotor & Controller

Electronic ControlElectronic ControlElectronic ControlElectronic Control

Component LocatorComponent LocatorComponent LocatorComponent Locator

Electrical ConnectionsElectrical ConnectionsElectrical ConnectionsElectrical Connections


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Customer ComplaintsCustomer ComplaintsCustomer ComplaintsCustomer Complaints

Not TumblingNot TumblingNot TumblingNot Tumbling

Not FillingNot FillingNot FillingNot Filling

Not DispensingNot Dispensing Not DispensingNot Dispensing

Not DrainingNot Draining Not DrainingNot Draining

Not SpinningNot Spinning Not SpinningNot Spinning

Stops Mid CycleStops Mid Cycle Stops Mid CycleStops Mid Cycle Run Time Too LongRun Time Too Long Run Time Too LongRun Time Too Long

Time JumpsTime Jumps Time JumpsTime Jumps

Not UnlockingNot UnlockingNot UnlockingNot Unlocking

Not LockingNot LockingNot LockingNot Locking

LeakingLeakingLeakingLeaking

NoisyNoisy NoisyNoisy Wet ClothesWet ClothesWet ClothesWet Clothes

Wrinkled BootWrinkled Boot Wrinkled BootWrinkled Boot

Continues to FillContinues to FillContinues to FillContinues to Fill

Water TemperatureWater TemperatureWater TemperatureWater Temperature

Display Lights UpDisplay Lights UpDisplay Lights UpDisplay Lights Up

Does not startDoes not startDoes not startDoes not start

SudsSudsSudsSuds


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Wash Performance Wash Performance Wash Performance Wash Performance

Lint on ClothesLint on ClothesLint on ClothesLint on Clothes

Suds on ClothesSuds on ClothesSuds on ClothesSuds on Clothes

Tearing / RippingTearing / RippingTearing / RippingTearing / Ripping

TanglingTanglingTanglingTangling


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Entering Service Mode Entering Service Mode Entering Service Mode Entering Service Mode

BEFORE proceeding, remove articles in tub. Service Mode allows you to enter the diagnostics of the machine control to verify the system operation of the unit and check component function.

FOR MAH5500,55Fl,6500 ModelsFOR MAH5500,55Fl,6500 Models

Simultaneously press “DELICATES & HEAVY SOIL”, hold until an audible triple beep Displays “00”. You are now ready to proceed with System Checks and component diagnosis.

Continue…


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FOR 7500 ModelsFOR 7500 Models

Simultaneously press “DELICATES & HEAVY SOIL”, hold until the following screen appears

Continue…


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FOR CROSLEY MODELS (CAH4205) MODELS

Simultaneously press “ *HIDDEN & HEAVY SOIL” keys, hold until Display reads “00”. The * hidden key is located under the surface of the last character (y) in the brand name.

* Hidden * Hidden KeyKey

* Hidden * Hidden KeyKey


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Service Mode TestsService Mode TestsService Mode TestsService Mode Tests

Control Board Output Control Board Output TestsTestsControl Board Output Control Board Output TestsTests

Control Board Input Control Board Input TestsTestsControl Board Input Control Board Input TestsTests

Quick Spin TestQuick Spin TestQuick Spin TestQuick Spin Test

Quick Service CycleQuick Service CycleQuick Service CycleQuick Service Cycle

Fast Time Down TestFast Time Down TestFast Time Down TestFast Time Down Test

No Fill TestNo Fill TestNo Fill TestNo Fill Test


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Electrical Connections can be a major source of No Apparent defects and (NAD) and Operation Normal service calls. Poor electrical connections can cause intermittent problems leading to misdiagnosis and repeat service calls. It is always a good idea to rule this out prior to diagnosing any major problems.

• Always ensure electrical connectors are fully inserted and latched at both ends of a circuit.

• Remove the connector and check to ensure the wires are properly crimped and seated in the terminal. Any loose wires in the crimp could cause intermittent problems.

• Reconnect the connector at both ends and make sure it is fully latched. Replace harness if loose wires exist.

• Look at terminals (both male and female) for evidence of burn marks. If burn marks are present, there is a good possibility a loose connection exists.

Electrical ConnectionsElectrical Connections

Component Trouble shootingComponent Trouble shooting MAINLAST TROUBLE

SHOOTINGCONSUMER COMPLAINT

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Component Trouble shootingComponent Trouble shooting Water ValveWater ValveService Mode: “DELICATES & HEAVY SOIL”, Displays “00”( *Hidden & Heavy soil for Crosley)

Press “RINSE”, Displays “ot” (Oh Tee, output test mode)

Press “COTTON STURDY”, hot water should be dispensing (“Normal” for Crosley)

Press “WRINKLE FREE”, cold water should be dispensing

Press “DELICATES”, water should be dispensing into bleach cup (*Hidden Key for Crosley)(Note: cold or hot water valve must be toggled on for bleach water to dispense)

Press, “HAND WASH”, water should be dispensing into softener cup (Note: cold or hot water valve must be toggled on for softener water to dispense)

Press, “COTTON STURDY, WRINKLE FREE, DELICATES, HAND WASH” to toggle off all the valves

Press, “PRESOAK”, pump will turn on to drain the tub, press again to toggle off once water is removed.

Press, “OFF” twice to exit the output test mode. If valve does not work

Check electrical connections on valve and board outputs to valve.

Check pressure switch using board Input Test. If sensing a high level, valve will not turn on.

Check to see if there is water in the tub. Drain water performing the pump output test.

Check door lock sense circuit.


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Membrane PadMembrane PadService Mode: “DELICATES & HEAVY SOIL”, Displays “00”

Press “WRINKLE FREE”, Displays “OU.”

Press each button once, sequencing from left to right. All the embedded LED’s should light up except wrinkle free. The “U” will alternate as buttons are pressed.

After all buttons have been pressed, the Estimated time display will display, “PA” if there are no issues with the membrane switch pad.

Note: If there is at any time 5 seconds of inactivity, the test will exit.

If other diagnosis needed, remain in Service Mode and press back button at top of slide to proceed with further diagnostics or….

Press, “OFF” twice to exit the input test mode.

Note: This test is for MAH5500, MAH6500. The MAH55FL does not have a signal button and will not pass the membrane switch pad check.



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Door LockDoor LockService Mode: “DELICATES & HEAVY SOIL”, Displays “00” ( *Hidden & Heavy soil for Crosley)


Press “MAX EXTRACT”, control sends an lock pulse every second for 10 seconds.

Press “MAX EXTRACT” again, control stops sending a lock pulse

Press “Extra Rinse”, control sends an unlock pulse every second for 10 seconds

Press “Extra Rinse” again, control stops sending an unlock pulse

If fails to lock, open unit and check for loose electrical connections at the door lock and machine control.

Check for proper outputs from the machine control board


Press, “OFF” twice to exit the output test mode.



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PumpPump

Service Mode: “DELICATES & HEAVY SOIL”, Displays “00” (*Hidden & Heavy soil for Crosley)


Press, “PRESOAK”, pump will turn on to drain the tub, press again to toggle off once water is removed.





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Unbalance CircuitUnbalance Circuit


Press “TEMP DOWN”, Displays xxxxx

Press “DOWN ARROW” (below the cold/cold temperature) Displays “u0” (You Oh) for balanced or “uI” (You Eye) for unbalanced. If displays “uI” a Service Call is required.


Press, “OFF” twice to exit the input test mode.



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Component Trouble shootingComponent Trouble shooting Motor / ControllerMotor / Controller

The removal of the front panel is required.

1. Unplug the wash machine

2. Remove front panel and pull the JP4 connector from the motor control board.

3. Reconnect the washer power cord to supply voltage. Make sure the door is closed.

4. Access Service Mode and Output test.

5. Lock the door by pressing “max extract”.

6. Press “Stain Cycle” to start the test. 120VAC is sent to the motor controller and the spinner should rotate at 50 RPM until the test is stopped.

7. For Crosley, Select “SPIN” and press “Start/Pause”; ignore steps 4, 5, 6

If motor does not Run


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If motor does Run

Component Trouble shootingComponent Trouble shooting Motor / Motor / ControllerControllerMotor Does Not Run, turning the spinner

1. Check the voltage input at the motor control harness.

If there is power to the motor controller• Check all wire connections• Check resistance across phase

windings of the motor at the motor harness cable shown in diagram below.

If phase windings are in specification, replace the motor controller

If there is no power to the motor controller

1. Check loose electrical connections at machine control board or broken wires in harness.

2. Check door actuator switch and related wiring.

Motor Phase windings


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Component Trouble shootingComponent Trouble shooting Motor / Motor / ControllerControllerMotor Does Run, but either does not turn spinner at 50rpm or runs

intermittently during regular wash cycle

1. Disconnect JP4 connector from Machine control and motor control and check resistance of Signal Common , Tach and Torque wires of the JP4 at the motor control and machine control. See Machine Schematic for wiring details. Replace harness if no continuity.

2. Check Diagnostic Codes. Look for 06,16,24,25 codes and respond according to recommendations on the specific diagnostic codes.

3. Still not operating properly, it is necessary to check signal at the following places during the quick service cycle test,:• Output of Signal Common at Machine Control, then

compare to Input at Signal Common on Motor Control. Replace the component that does not have the signal.

• Output of Torque PWM at Machine Control, then compare to Input at Torque PWM on Motor Control. Replace the component that does not have the signal.

• Input of Tach on Machine Board to Output of Motor Control at Tach on Motor Control.

• It is possible to check the signal with a Voltmeter that can measure frequency or peak voltage fast enough, although a Oscilloscope is better. After doing the above tests replace the component has does not receive the signal.


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Machine Control Board INPUT / OUTPUT for Machine Control Board INPUT / OUTPUT for MAH5500MAH5500

Refer to actual guide found in machine console for Refer to actual guide found in machine console for most accurate table/wiring diagrammost accurate table/wiring diagram


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Machine Control Board INPUT / OUTPUT for Machine Control Board INPUT / OUTPUT for CrosleyCrosley



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Continue…


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Continue…


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Component Trouble shootingComponent Trouble shooting Electronic ControlElectronic Control

There are a lot of problems that can be potentially traced to the electronic control board. However, correct diagnosis of the control board involves making sure of the following:

1. Check to ensure electrical connectors to Control Board are properly seated

2. Perform Board Output Test

3. Perform Board Input Test

4. Check Voltages on all pins as shown in Machine Control Board INPUT/OUTPUT chart. If no voltage present at Control Board, machine board needs to be replaced.


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Service Mode TestsService Mode Tests Quick Spin TestQuick Spin Test


Press “SPIN”, starts the Quick Spin Test

The following steps are as follows:1) Lock the door2) Spin to 350 rpm and hold for 6 seconds3) Spin to 550 rpm and hold for 6 seconds4) Spin to 600 rpm and hold for 6 seconds5) Spin to 650 rpm and hold for 6 seconds6) Spin to 800 rpm and hold for 6 seconds

If other diagnosis needed, remain in Service Mode and press back button at top of this slide to proceed with further diagnostics or….



CONSUMER COMPLAINT

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Quick Service CycleQuick Service Cycle


Press “DELICATES”, starts the Service Cycle. (*Hidden Key for Crosley)

If other diagnosis needed, remain in Service Mode and press back button at top of this slide to proceed with further diagnostics or….


Service Mode TestsService Mode Tests MAINLAST TROUBLE


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Fast Time Down TestFast Time Down Test

Service Mode: “DELICATES & HEAVY SOIL”, Displays “00”

(*Hidden & Heavy soil for Crosley)

Press “Quick”, advances the program to the next wash cycle

Service Mode TestsService Mode Tests MAINLAST TROUBLE


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Service Mode TestsService Mode Tests Control Board Input test for MAH5500Control Board Input test for MAH5500Refer to actual guide found in machine console for most accurate Refer to actual guide found in machine console for most accurate

table/wiring table/wiring diagramdiagram


Press “HAND WASH”, Displays “OU.”

Continue…


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Service Mode TestsService Mode Tests Control Board Input test for MAH6500Control Board Input test for MAH6500Refer to actual guide found in machine console for most table/accurate Refer to actual guide found in machine console for most table/accurate

wiring wiring diagramdiagram



Continue…


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Service Mode TestsService Mode Tests Control Board Input test for CrosleyControl Board Input test for CrosleyRefer to actual guide found in machine console for most accurate Refer to actual guide found in machine console for most accurate

table/wiring table/wiring diagramdiagram

Service Mode: “*Hidden & Heavy Soil” , ,Displays “00”


Continue…


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Service Mode TestsService Mode Tests Control Board Output Test for MAH5500, MAH6500Control Board Output Test for MAH5500, MAH6500

Refer to actual guide found in machine console for most accurate Refer to actual guide found in machine console for most accurate table/wiring table/wiring

diagramdiagramService Mode: “DELICATES & HEAVY SOIL”, Displays “00” (*Hidden & Heavy soil for

Crosley)

Press “RINSE”, Displays “ot.”

While in Board Output Test, performing a Key Press will activate the item in the “Function Performed” column.

Key Pressed: Function Performed

Cotton/sturdy Hot Water Valve

Wrinkle Free Cold Water Valve

Delicates Bleach Valve

Hand Wash Fabric Softener Valve

Presoaks Drain Pump

Stain Cycle Motor Control

Extra RinseUnlock Door (Sends apulse every second for10 seconds)

Max ExtractLock Door (Sends apulse every second for10 seconds)

Continue…


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Service Mode TestsService Mode Tests Control Board Output Test for CrosleyControl Board Output Test for Crosley

Refer to actual guide found in machine console for most accurate Refer to actual guide found in machine console for most accurate table/wiring table/wiring

diagramdiagramService Mode: “*Hidden & Heavy Soil”

Press “RINSE”, Displays “ot.”

While in Board Output Test, performing a Key Press will activate the item in the “Function Performed” column.

Continue…


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What is a diagnostic What is a diagnostic codecode

A problem with a system that is detected and logged in the control

board and it is recommended the machine be serviced. Unless it is

otherwise noted, other cycles should be able to be started and the

display would revert back to displaying time on another cycle start.

Diagnostic Codes should be viewed before replacing any components to

prevent additional “good”components being replaced.

To view diagnostic codes

Service Mode: “DELICATES & HEAVY SOIL”, (*Hidden & Heavy soil for Crosley)

Displays “00”

Press “Presoak”, Displays ‘d’. Use “arrow” to scroll up and down


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Diag.Code

Description Trigger Action to be Taken

01 No drain The water level fails todrop below the lowwater level in final spin

Will display "nd"Go to "Will Not Drain" page 3.

02 The door fails tounlock

Door failed to unlockafter 11 attempts

Will display "LO"Go to "Will Not Unlock" page 3.

03 No fill Continuous fill of 12minutes.

Will display "nF"Go to "No Water Fill" page 2.

04 The door fails tolock

Door failed to lockafter 11 attempts

Will display "FL"Go to "Will Not Unlock" page 2..

05 Continuousunbalanced circuit(During spin only)

See section forunbalanced loads.

Go to "Wet Clothes" page 2.

06 Locked rotor Motor not turning after10 consecutive retryattempts

Will display "Lr"Go to "Motor Control Board OutputTest" page 5.

07 (Not Used)

Continue…

Service Mode: “DELICATES & HEAVY SOIL”,

Displays “00”

Press “DOWN ARROW”, Displays ‘d’

Diagnostic CodesDiagnostic Codes

What is a diagnostic What is a diagnostic code?code?What is a diagnostic What is a diagnostic code?code?


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Diag.Code


08 Water sensor levelfault

The low water level isnot satisfied before thehigh water levelcontacts are openedin the pressure switch

Go to ""No Water Fill Test"" page 2.

09 (Not Used)

10 Low rpmunbalanced load

Never reached 400rpm due to anunbalanced load

Go to ""Wet Clothes"" page 2.

11 Non-volatilememory error

Difficulty in readingmemory

1. Go to "Clearing Diagnostic Code "page 9.2. Unplug and replug in power cord washer at power supply outlet3. If a condition still exists, replace machine control board.

12-14 (Not Used)

15 Stuck key A key is sensed to bepressed for more than75 seconds, the keyshall be assumed tobe stuck

Replace console/membrane switch.

16 High speed notachieved due tohigh motor torque

Speed never went over400 rpm during a mainwash cycle becausethe maximum torquewas seen for too long

Go to ""Wet Clothes"" page 2.

17 Door actuatorswitch was notseen open sincethe last final spin

The door has not beenopened after acomplete wash cycle.

Will display "od"Check for:- Customer may have tried to repeat wash cycle without opening door-Go to "Door Lock Test" page 6.

18 Door lock switchseen open duringcycle

Door lock switch isread as open withmotor running

- Clear the diagnostic code, page 9.. recheck;"Go to "Door Lock Test" page 6.

Continue…

Diagnostic CodesDiagnostic Codes MAINLAST TROUBLE


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Diag.-Code


19 Door lock sense ormotor control relayfailed

Door lock sense switchon machine controlboard is read as openwith motor running

See list for diagnostic code 18

20 Door switch inputseen open duringcycle

Door switch is open Go to "Door Lock Test", page 6.

21 Door sense switchfailed on machinecontrol board

Door sense switch isread as open and thedoor locked switch isread as locked

Go to ""Door Lock Test", page 6.

22 Door switch seenopen during cycle

Door switch is read asopen and the doorlocked switch is readas locked

Go to "Door Lock Test", page 6.

23 Door failed tounlock

Door lock is lockedand a user tries tostart a cycle

Go to "Will Not Unlock" page 3.

24 Motor over speed Motor tach signal isseen at maximumspeed

- Replace motor control board

25 Motor tach signalexists withoutmotor running

Tach signal existswithout torquecommanded.

- Replace motor control board

26 (Not Used)

28 Valve thermistorfailure

Abnormal high/lowtemperature or ohmresistance seen

Go to "Wrong Water Temperature" page3.

29 (Not Used)

61 Door lock switchsensed lockedduring cycle whennot expected

Door became lockedduring 30 secondunlocked period atbeginning of cycle


62 Conditions forunlock not metduring cycle


Diagnostic CodesDiagnostic Codes

Additional Diagnostic Additional Diagnostic CodesCodesAdditional Diagnostic Additional Diagnostic CodesCodes


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What is a help code What is a help code

A system responded differently than expected. The severity level is

generally less than that of a diagnostic code. Help codes are logged

and stored in memory. They should be used to to understand minor

problems the washer experiences in a given cycle.

To view help codes: Service Mode: “DELICATES & HEAVY SOIL”, (Cannot check for

help codes in Crosley Models)

Displays “00”

Press “Stain Cycle”, Displays ‘h’. Use “arrow” to scroll up and down


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Help CodesHelp Codes

What is a help code?What is a help code?What is a help code?What is a help code?

Help Code

Description Trigger Action to be taken

0 (Reserved to indicate no entry in log)

1 Unbalance Load Detected after several attempts to spin to top speed in final spin.

Unbalance load condition existed during initial ramp up of spin cycle. Resulted in redistribution cycle

Informative only; non-critical condition

2 Limit to 550 rpm More than 6 unbalances have occurred, so tub displacement tolerances have been opened up and final speed has been limited to 550 rpm. Help Code 18 will also be logged.

3 Tub sensor shows low position due to large load.

Large load, tub position sensor shows low

Remove some items of clothing and resume cycle by pressing Start

4 Tub displacement sensor limited final spin speed to 700 rpm.

The tub displacement sensor detected too large an amplitude at 550 rpm

Informative only; help code 18 will normally also appear

Continue…


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Help Code


5 Tub displacement sensor limited final spin speed to 850 rpm.

The tub displacement sensor detected too large an amplitude at 550 rpm

Informative only; help code 18 should also appear

6 Lid sensed open for a very short time period while locked.

With the door debounced (sensed) locked, the lid was sensed open during a 2 ms interrupt.

Informative only; Diag Code 22 may also be present.

7 Slow drain Low water level contacts of pressure switch not seen as resetting at end of drain cycle.

Go to "Will Not Drain" Troubleshooting Section

8 One locked rotor during tumble During startup, the spinner did not reach 10 rpm within 2 sec. (during wash/tumble)

Go to "Motor Control Board Output Test"

9 Fill hoses are reversed Water valve thermistor readings are contrary to what is being demanded by washer control board

Informative only;

Continue…


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Help Code


10 Locked rotor condition during a spin Locked rotor condition during a spin


11

12 Motor on at full power for 30 seconds at more than 850 rpm

Motor on at full power for 30 seconds at >850 rpm

Check for obstruction between spin basket and the outer tub.

13 Low speed spin unbalance detected Neptune FL: Opening of unbalance switches at speed <500 rpm and >100 rpm during a spin

Go to "Wet Clothes" Troubleshooting Section

14 Unbalance in a spin at more than 850 rpm

Neptune FL: Opening of unbalance switches at speed >850 rpm and during a final spin

Informative only; non-critical condition

Continue…


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Help Code


15 Suds detected in pre-wash Suds detected during the pre-wash.

Same as Help Codes 16 or 33.

16 Spin suds lock Excess power for 45 sec in wash and non-final rinse spins (less than 525 rpm)


17 Unbalance within a spin between 525 & 850 rpm during a spin.

Opening of unbalance switches at speed >525 rpm during a spin.

Informative only

18 During the final spin sequence, the machine did not achieve the desired final spin speed. Look at other help & diag codes to determine why.

Speed less than desired in final spin speed

Evaluate other diag and help codes to determine cause.

19 Power down Loss of power Informative only

21 Fast fill. Fill level reached within 2 seconds of fill initiation.

Possible slow drain scenario present or customer interrupted wash cycle and started washer over again. Go to "No Water Fill Test"

Continue…


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Help Code


23 Motor on at full power for 30 seconds within a spin at 500-850 rpm

Motor on at full power for 30 seconds between 500 - 850 rpm.

Informative only

24 Motor overspeed first time (in spin) Motor tach signal seen at maximum speed for one second.

Informative only

25 Motor overspeed first time (in tumble) Informative only

33 Suds detected in wash Control board detects motor torque fluctuations dropping in torque readings.


34 Power at limit too long in low speed spin Maximum torque requested in low speed spin.


35 Power at limit too long in a tumble. Maximum torque requested in wash/tumble.


Continue…


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Help Code


36 Neptune FL: Motor still running after 240 seconds of coast down after a spinNeptune TL: Motor still running after 480 seconds of coast down after a spin

Neptune FL: Motor still running after 240 seconds of coast down after a spin

Informative only

37 Motor running too fast during tumble for too long

1 minute after start of tumble, if speed is >85 rpm.


40 Door/lid is not locked while spinning Motor running and the door is not locked.


41 Tach verification failed during unlock Cycle was paused due to failure to verify tach signal during unlock request.

Go to "Will Not Unlock" Troubleshooting Section

42 Motor control not powered during unlock

Cycle was paused because motor control not powered during unlock request.


43 Tach unexpectedly present during unlock

Cycle was paused because the tach occurred when the motor control was powered during unlock request for the second time.


Continue…


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Help Code


44 Unlocking attempts disallowed because tach signal continues after tach verification.

Tach signal observed after tach verification.


45 Door/lid locked when not expected Door becomes locked outside of a cycle.

Go to "Door Lock Test" Troubleshooting Section

46 Cabinet impact sensed Cabinet impact detected by the frame vibration sensor.

Informative only

47 Door/lid did not lock after the first try The door lock switch did not go from unlocked to locked when the door lock output was energized.


48 Door/lid did not unlock after the first try The door lock switch did not go from locked to unlocked when the door unlock output was energized.


51 Thermistor voltage may have an open circuit

Various miscellaneous triggers

Go to "Wrong Water Temperature" Troubleshooting Section

52 Thermistor voltage leads may be shorted.



Continue…


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Help Code


53 Thermistor readings do not change while heater is operating



57 Machine control detects the High water level as being present but the Low water level is not present.


Informative only

58 Machine control detects the High water level as being present but the Medium water level is not present.


Informative only

59 Machine control detects the Medium water level as being present but the Low water level is not present.


Informative only

Additional Help CodesAdditional Help CodesAdditional Help CodesAdditional Help Codes

Continue…


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Additional Diagnostic and Help Additional Diagnostic and Help CodesCodes

Microsoft Excel Worksheet

Click on embedded Click on embedded file to find file to find additional codesadditional codes


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MAH5500 & 55FL MAH5500 & 55FL SchematicSchematic

Refer to actual guide found in machine console for most accurate table/wiring diagram


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Schematics

48

MAH6500SchematicMAH6500SchematicSchematicsSchematics



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MAH 7500 MAH 7500 SchematicSchematic

SchematicsSchematics



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CAH 4205 SchematicCAH 4205 SchematicSchematicsSchematics



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Component LocatorComponent Locator MAINLAST TROUBLE


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Customer ComplaintCustomer Complaint

LEAKING1. Make sure supply hose connections are not leaking. Check for rubber gasket damage

due to over tightening.

2. Make sure end of drain hose is correctly inserted and secured to drain facility.

3. Avoid overloading which can cause the door partially to open.

4. Check internal hose connections

5. Check tub cover.

6. Check door boot alignment and reinstall if necessary.

Display Lights Up When Door Opened1. This is normal

2. Green LED’s remain lit for 10 minutes after the door has been opened.

NOT TUMBLING1. Washer does not tumble for the first 30 seconds after the door has been opened for

safety purposes.

2. Fabric cycles such as delicates and hand wash only tumble for a few seconds every 30 seconds.

3. Washer does not tumble during some drains and rinse fills.

4. Check for loose electrical connections at machine control board, motor control board, and motor.


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NO WATER – NO FILL Check to make sure water supply turned on fully.

· Normal water level is only 2.5 inches, wash level to 5 inches, rinse level inside the spinner.

· Check for kinks in inlet hoses.

· Check for clogged inlet screens at faucet and water valve.

· Visually check hot and cold separately at dispenser for proper flows, go to Troubleshooting-water valve.

· Perform a No Fill Test as follows:

1. Close the door and start a spin cycle to drain all water from the washer to reset the pressure switch.

2. Press OFF and open door to verify all water is removed from the washer. If water still present, go to the table of contents and find and refer to the page on Will Not Drain.

3. If water is drained out, close the door and go to service mode by pressing the DELICATES and HEAVY (*Hidden & Heavy soil for Crosley) SOIL keys together for 3 seconds. If it is likely to need access to the water valve for voltage checks, consider raising the top cover now and close the door so that the following steps will not need to be repeated.

4. While in service mode, press the HAND WASH key that places the washer into the Board Input test.

5. Check the lower water level by pressing the HAND WASH key.

6. “_1” indicates the washer is full. If full, check the lower water level input at the machine control board by reading DC voltage for Lower Water Level – Input from Machine Control Board Input/Output table. If voltage is present at the machine control board, check voltage at pressure switch between BU and BR. If voltage present at pressure switch, replace pressure switch. If voltage is not present at pressure switch, check or repair harness. If no voltage is present at the Machine control board, replace the machine control board.

7. “_0” indicates the washer is empty: If empty, press the WRINKLE FREE key to check the

high water level.

Continue…

Customer ComplaintCustomer ComplaintMAINLAST TROUBLE


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54

NO WATER – NO FILL - continued8. “ˉˉ1” indicates full. If full, check the high water level input at the machine

control board by reading 120 VAC voltage for High Water Level – Input from Machine Control Board Input/Output table. If 120 VAC is not present at the machine control board, check continuity at pressure switch at the GY and YL.If no continuity, replace pressure switch. If continuity, check door switch and harness to pressure switch to Machine control board. If 120 VAC is present at the Machine control board, replace the machine control board.

9. “ˉˉ0” indicates empty. If empty, exit board input test mode by pressing the START/PAUSE key. Then enter board output test mode by pressing the RINSE key.

10. Turn the cold water valve on by pressing the WRINKLE FREE key. Check for cold water flow at the dispenser. If no cold water flow, check the cold water valve for 120VAC between BU and WH. If 120VAC is present at the cold water valve, replace the water valve. If 120VAC is not present at the cold valve, check for 120VAC at the Cold Water Valve output from Machine Control Board Input/Output table. If 120VAC present at Control board, check or replace the harness. If 120VAC is not present at the machine control board, replace the machine control board.

11. If the cold water flows, turn the cold valve off by pressing the WRINKLE FREE button.



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55

NOISY

1. Make sure this is not a normal machine noise. Refer to call taker guide for

listing of normal noises.

2. Clothes washer should be leveled properly as outlined in installation

instructions.

3. Weak floors can cause vibration and walking.

4. Check for loose lower front weight and upper weight.

5. Be sure rubber feet are installed on leveling legs.

6. Check that the leveling leg lock nuts are tightened.

7. If complaint is a high-pitched noise during fill then disconnect supply hoses

and clean screens.

8. Check for proper spring placement of outer tub support springs.

9. Check strut operation by pushing down on the outer tub.

10. Check to make sure pulley and belt are not loose.



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56

TUB IS FULL OF SUDS

1. Run the clothes washer through another complete cycle using cold

water and no more detergent.

2. Reduce detergent amount for that specific load size and soil level.

Towel loads have a minimal amount of soil present and typically create

more suds.

3. Use high efficiency or low sudsing detergent specially formulated for

front load washers.

4. Check for restricted drain system.

5. Check for loose electrical connections at control board and pump.

6. Check to see if belt fell off motor and pulley.

7. Perform the following Motor/Controller Test.

8. Check Diagnostic and Help Code History. Look for d16, h15, h16, h33

codes.

Continue…



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57

WET CLOTHES

1. Very small clothes loads can cause unbalances – add additional towels.

2. Excessive suds may have been present. Check for diagnostic code 16.

3. Check unbalance harness electrical connections at all switches and at

main harness connection on top of outer tub assembly.

4. Inertial unbalance switch tripped too soon, resulting in lower spin

speeds. Run Quick Spin Test to check unbalance switches and

control board:


6. Perform the Motor/Controller Test.

Continue…



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58

WILL NOT LOCK

1. Door not all the way closed. Check door latch to make sure cam is not rotated. If rotated, replace

door latch assembly.

2. Check Electrical Connections at lock assembly and machine control board.

3. Perform the following Door Lock test (Lock sequence). (Note: The relay on the control board for

the door unlock mechanism is disabled if the motor control board indicates the spinner speed is >

7 RPM).

4. Use a voltmeter, look for 120 VAC, 60 millisecond pulse to the BR, WH wires.

5. If signal is present, then the door lock solenoid is bad and the door lock mechanism must be

replaced. (Assuming the door was fully closed.) To stop the signal, press MAX EXTRACT again.

6. If signal is not present, check electrical connections at switch or at control board. Check for

proper outputs from the

Door Lock output and neutral leg – Machine Control Board Input/Output table. If voltage is

present, fix electrical connections or change wire harness. If no voltage is found, go to

Door switch input – Machine Control Board Input/Output table on power cord to verify 120 VAC

coming into board. If voltage is not present check the door actuator switch. (make sure door is

closed.) If voltage is present, change machine control board.

Continue…



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59

WILL NOT LOCK - continued

7. Perform the Door Lock Test (Unlock Sequence).

8. An unlock signal will be sent to the solenoid every second for 10 seconds. If the door does not

unlock, use a voltmeter, look for 120 VAC, 60 millisecond pulse to the locking solenoid.

9. If signal is present, then the door lock solenoid is bad and the door lock mechanism must be

replaced. To stop the signal, press extra rinse again.

10. If signal is not present, check electrical connections at switch or at control board. Check for

proper outputs from the control board at

Door unlock output – Machine Control Board Input/Output table. If voltage is present, fix electrical

connections or change wire harness. If no voltage is found, go to

Door switch input – Machine Control Board Input/Output table to verify 120 VAC coming into the

board. If voltage is not present check the door actuator switch. (make sure door is closed.) If

voltage is present, change machine control board.

11. If door solenoid is locked but machine still displays FL, check to make sure door is fully closed.

Check Door Lock Switch Input- Machine Control Board Input/Output table for 24VDC. IF 24VDC is

not present, change machine control board (make sure you are in

Lock Sequence of Door Lock Test). If 24VDC is present, check for 24VDC at Door Lock Switch. If

not 24VDC at Door Lock Switch, replace harness. If 24VDC is present at Door Lock Switch,

replace Door Lock Assembly.

Customer ComplaintCustomer Complaint MAINLAST TROUBLESHOOTING

CONSUMER COMPLAINT

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60

NOT UNLOCKING

1. Unplug and re-plug in power cord and wait 2 minutes to see if machine unlocks.

2. Check for door locked switch circuit to be closed at machine control by doing the

following:

3. Enter service mode by pressing the DELICATES and HEAVY SOIL keys

together for 3 seconds. (*Hidden & Heavy soil for Crosley)

4. Press the HAND WASH key to enter Board Input test mode.

5. Press the DELICATES key. “LI” means the door is locked and “LO” means the

door is unlocked.

6. Check to make sure belt has not fallen off.

7. Check for loose electrical connections at door lock and at machine control board.

8. Perform the Door Lock Test (Unlock Sequence).

Continue…



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NOT UNLOCKING - continued9. An unlock signal will be sent to the solenoid every second for 10 seconds. If the door

does not unlock, use a voltmeter, look for 120 VAC, 60 millisecond pulse to the locking

solenoid.

10. If signal is present, then the door lock solenoid is bad and the door lock mechanism

must be replaced. To stop the signal, press extra rinse again.

11. If signal is not present, check electrical connections at switch or at control board.

Check for proper outputs from the control board at Conn P8(3) and Neutral leg of

power cord. If voltage is present, fix electrical connections or change wire harness. If

no voltage is found, go to P8(4) and Neutral on power cord to verify 120 VAC coming

into the board. If voltage is not present check the door actuator switch. (make sure

door is closed.) If voltage is present, change machine control board.

12. If door solenoid is locked but machine still displays FL, check to make sure door is fully

closed. Check Door Lock. Switch Input Machine Control Board 110 Table for 24VDC. IF

24VDC is not present, change machine control board (make sure you are in

Lock Sequence of Door Lock Test). If 24VDC is present, check for 24VDC at Door Lock

Switch. If not 24VDC at Door Lock Switch, replace harness. If 24VDC is present at Door

Lock Switch, replace Door Lock Assembly.



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WRINKLED BOOT1. Remove boot from shroud.

2. Install large tabs into shroud indicated by the white arrows. Later version has

alignment indicators on the shroud and booth show face.

3. Install remaining tabs into the shroud shown in step 1, 2, & 3, working in the direction

of the arrows.



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NOT DRAININGSymptom: Water is present in the tub after a wash cycle

Possible Causes:

Restricted Drain Hose, Loose Electrical Connections in drain system, loose electrical

connections to pressure switch, bad harness, bad pressure switch, bad pump, bad

electronic control board.

1. Check for restricted drain system. The drain system consists of tub to pump hose,

drain pump, drain hose.

2. If pump does not turn on, check all Electrical connections from pump, control board. It

is a good idea to remove the connections and reconnect. Check for loose wires in the

female terminals

3. Get into Service Mode

4. Check low and high water levels. Perform the No Fill Test

5. Perform Pump Test from component trouble shooting. If pump does not run, check for

120VAC at the pump when a spin cycle is selected. If signal is present then the pump

is bad. Replace pump.

6. If signal is not present check voltage at

Drain Pump Output- Machine Control Board Input/Output Table to verify 120VAC. If

voltage is present, replace harness. If not voltage, replace Control Board.



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64

WATER TEMPERATURE

Symptom: Water is either too hot or too cold

Possible Causes: Faucets not fully open, hoses are switched (hot is cold and cold is

hot), Loose Electrical connections to mixer valve, loose electrical connections to

dispenser valve, Bad Thermistor, Bad Mixer Valve, Bad Dispenser Valve.

1. Make sure both faucets are turned on fully

2. Make sure hoses are connected to the correct faucets and inlet connections on

washer. (Blue Stripe hose to cold and Red stripe to the hot)

3. Disconnect the hoses and clean the screens

4. If not resolved, check for proper resistance on the water valve thermistor

- Machine Control Board Input/Output Table. Replace mixer valve if thermistor

resistance is not in specification.

5. Check for loose electrical connections at mixer valve, dispenser valve and control

board.

6. Perform Water Valve Test from component trouble shooting

7. Replace mixer valve based on test results from water valve test in 6.



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65

NOT DISPENSING

Symptom: No water coming out of dispenser (from either combination of detergent, bleach,

softener slots).

Possible Causes:

Faucets not open, hoses clogged, Loose Electrical connections to mixer valve, loose

electrical connections to dispenser valve, Bad Mixer Valve, Bad Dispenser Valve, Bad

Dispenser Bottom, Bad Control Board.

1. Check to make sure water supply is turned on fully

2. Check for kinks in inlet hoses

3. Check for clogged inlet screens

4. Check for loose electrical connections at mixer valve, dispenser valve and control

board.

5. Run Membrane Pad Check Test to ensure that all the membrane keys are working




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NOT SPINNING

Symptom: Spinner is not rotating

Possible Causes:

Loose Electrical connections to motor controller, loose electrical connections to motor

from motor controller, loose electrical connections from control board, broken or loose

belt, loose pulley, bad motor controller to motor harness

1. Check for loose electrical connections to motor controller and control board

2. Check for loose electrical connections from motor controller to motor.


4. Run Quick Spin Test

5. Check pulley belt for tension, replace if belt is visibly loose

6. Check pulley bolt to make sure it is not loose

7. Check Diagnostic codes and Help codes to see if other codes were logged and

perform the actions required by the respective codes

8. Run Motor/Controller test.



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STOPS IN MID CYCLESymptom: Spinner is not rotating in middle of cycle, water in spinner, very wet clothes

Possible Causes:

Loose Electrical connections to motor controller, loose electrical connections to motor from motor

controller, loose electrical connections from control board, broken or loose belt, loose pulley, bad

motor controller to motor harness, bad door lock, bad control board

1. Check power to unit

2. Check Diagnostic codes and Help codes to see if other codes were logged and perform the actions

required by the respective codes.

3. Check for loose electrical connections to motor controller and control board

4. Check for loose electrical connections from motor controller to motor.

5. Check for loose electrical connections at door lock


7. Run Quick Spin Test

8. Check pulley belt for tension, replace if belt is visibly loose



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Continue…

68

STOPS IN MID CYCLE

9. Check pulley bolt to make sure it is not loose

10. Perform Door Lock Test

11. Perform No Fill Test

12. Perform Board Output Test

13. Perform Board Input Test

14. Perform Motor/Controller Test



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69

CONTINUES TO FILL

Symptom: water doesn’t stop filling and spills out on floor

Possible Causes:

Loose Electrical connections to pressure switch, loose electrical connections dispenser

valve, loose connections to mixer valve, loose electrical connections from control

board, bad pressure switch, bad dispenser valve, bad mixer valve, bad control board

1. Check Diagnostic codes and Help codes to see if other codes were logged and

perform the actions required by the respective codes.

2. Check for loose electrical connections to dispenser valve, mixer valve

3. Check for loose electrical connections to pressure switch.

4. Check for loose electrical connections at control board


6. Perform No Fill Test

7. Perform Board Output Test all options.

8. Perform Board Input Test. Door Position, Latch Position, High Water, Low Water.



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TIME JUMPS

Symptom: Usually the customer is standing there and notices the time remaining arbitrarily jumps.

Possible Causes:

False unbalance condition encountered, false sudsing encountered, loose connections to

unbalance switches, loose connections motor controller, motor harness bad, control board

bad, motor bad.

1. Check Diagnostic codes and Help codes to see if other codes were logged and perform

the actions required by the respective codes. Look for unbalance, sudsing codes in the

diagnostic and help types.

2. If there is no evidence of sudsing and unbalance codes, the control board might be bad

3. Check for loose electrical connections to unbalance switches, motor controller, motor harness

connections, control board

4. Check for loose electrical connections for the motor harness.


6. Perform Board Input Test, Unbalance Circuit, Vibration Signal, Accelerometer Circuit

7. Replace control board if 5 and 6 are pass conditions.



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RUN TIME TOO LONGSymptom: Customer notices that the cycle is taking a lot longer than the read out shows. This condition

is similar to the time skips condition.

Possible Causes:

False unbalance condition encountered, false sudsing encountered, loose connections to

unbalance switches, loose connections motor controller, motor harness bad, control board bad,

motor bad.

1. All consumer related issues like overloading the washer should be ruled out first. This is usually

done by customer service but it is a good idea to verify with the consumer.

2. Check Diagnostic codes and Help codes to see if other codes were logged and perform the

actions required by the respective codes. Look for unbalance, sudsing codes in the diagnostic and

help types.

3. If there is no evidence of sudsing and unbalance codes, the control board might be bad

4. Check for loose electrical connections to unbalance switches, motor controller, motor harness

connections, control board

5. Check for loose electrical connections for the motor harness.


7. Perform Board Input Test, Unbalance Circuit, Vibration Signal, Accelerometer Circuit

8. Replace control board if 5 and 7 are pass conditions.



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72

DOES NOT START

1. Plug cord into live electrical outlet

2. Check fuse or reset circuit .

3. Close door and push ”START/PAUSE”

4. Check to see if the washer is in a pause or soak period in a cycle.

Wait briefly it may start.


6. Check voltages at pins shown in

Machine Control board INPUT/OUTPUT table.

7. Perform Board Input test, all options.

8. Perform Board Output test, all options



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73

If the owner observes codes on display see table below for interpretation of what

this means.

Codes on DisplayCodes on Display MAINLAST TROUBLESHOOTING

CONSUMER COMPLAINT

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Lint on ClothesLint on Clothes

How was the load sorted?? Many fabrics are lint-givers (towels, terry, etc..) or lint grabbers (per press, corduroy, etc..). Wash these items separately.

Has the laundry been properly sorted?

Is the washer overloaded?

Clothes need room to tumble freely. If clothes are compacted, you increase the likelihood of trapping lint.

How much detergent was used?

The amount of detergent can affect lint removal. If living in a hard water area, increase the amount of detergent used.

Do not mix lint givers and lint takers..

Wash PerformanceWash PerformanceMAINLAST TROUBLE


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75

Suds on Clothes Suds on Clothes

High efficiency laundry detergents contain suds suppressors which reduce or eliminate suds.

What type of detergent is being used?

How much detergent was used?

If using regular detergent formulated for top-loading washers, it is important to pay close attention to the soil level of the load, load size, and water hardness. To avoid over-sudsing, reduce the amount of detergent used with soft water or with small or lightly soiled loads.

Click here for more on HE Detergent

Rinse the Machine Run machine through a rinse cycle and try again. Extra detergent residue can cause over-sudsing.



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76

Tearing or RippingTearing or Ripping

Make sure your cycle selection matches the type of clothes.

Lingerie should be washed using the Delicates or Hand Wash cycle.

What cycle was being used?

Was bleach used?

When using bleach, avoid using too much bleach for the amount of clothes. Make sure the dispenser cups are not filled beyond the Max Fill lines.

Over time, use of chlorine bleach can weaken the fabric of clothes.

Did the garment have strings? Loose strings can become tangled in other wash items. Tie the strings together or place in a mesh laundry bag for easier handling.

Did the garment have strings? Loose strings can become tangled in other wash items. Tie the strings together or place in a mesh laundry bag for easier handling.



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77

TanglingTangling

Washing loads of all one type of garment can cause tangling. Mix cotton jeans with cotton shirts, a load of permanent press shirts with a few permanent press pants etc…

Were all the clothes in the load the same type?

How large was the load?

Clothes need room to move freely in the wash basket. The clothes load should not appear tightly packed in the wash basket when originally placed in the washer (dry).

What cycle was selected?

The selections may be too aggressive for the type and size of wash load. Try using Wrinkle Free vs. Cotton/Sturdy.

Check that the soil level matches the load size. For instance, when washing a smaller load of clothes that are not heavily soiled, use Light Soil Level vs. Medium or Heavy Soil Level.

Mixing garment types may be necessary.

Tightly packed load may effect PERFORMANCE



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