compactor 2

8/8/2019 Compactor 2

1/22

STUDY COURSE

UNDERSTANDING COMPACTOR:

ELECTRICAL COMPONENTS and

CHECKING PROCEDURES

Module 5

LIT 4314193 Rev. A

DISHWASHER and COMPACTOR


2/22

All rights r eserved. No port ion of th is book ma y be repr oduced in a ny form with out

written permission from WHIRLPOOL CORPORATION.

1990, 1998 WHIRLPOOL CORPORATION

WHIRLPOOL CORPORATION does not assu me an y responsibilityor an y liability in conn ection with t he u se of this ma nu al.

The tra demarks WHIRLPOOL , , , andFSP ar e registeredtrademarks of Whirlpool Corporation.


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INTRODUCTION

The mat erial presented in th is module is inten ded to provide you with a n un dersta nding of the

fundam enta ls of dishwash er an d tra sh m ash er compactor servicing.

Major a ppliances have become more sophisticated, tak ing th em out of the screwdriver an d pliers

category. Their electrical circuits include several different types of automatic controls, switches,

heaters, valves, etc.. Semiconductors, solid-state controls, and other components usually

associated with radio and television electronic circuits are being engineered into automatic

washers, dryers, dishwashers and refrigerators.

The appliance techn ician is emerging into a professiona l statu s of his own. He mu st prepar e

himself now to be able to perform his dut ies today as well as to reta in his pr ofessiona lism in th e

future.

No longer is on-the-job training sufficient to prepare technicians for the complicated procedures

required for t odays sophisticated applian ces. This tr aining can best be obtained th rough organized

classroom study and application. However, much of the knowledge necessary to service todays

appliances can be obtained through study courses. Completion of this and other courses will

provide you with su fficient un dersta nding of applian ces a nd t heir operat ion t o enable you to do

minor service. It will also serve as a va luable stepping stone to more advan ced stu dy and on-th e-

job tra ining t o impr ove your servicing skills.

Informa tion cont ained in th is module is used on WHIRLP OOL appliances.

1


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TABLE of CONTENTS

CHAP TER 1 ......................................................................................... 3ELECTRICAL COMPON ENTS

*TEST ......................................................Se e Te s t Book LIT4314204

*N O T E: We recom m en d t a k i n g t h e TES T for MOD U LE 5, r i g h t

a fter s tud ying i t .

PAGE

2


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CHAPTER 1

ELECTRICAL COMP ONENTS

1972 TO 1992 MODELS

CHAIN MOTOR

CENTRIFUGAL

SWITCH

RAM

TOP LIMIT/DIRECTIONAL

SWITCH

LOCK/OFF/ON

START SWITCH

DRAWER

TILT

SWITCH

POWER

SCREWS

DRAWERSAFETY SWITCH

DRAWER

TILT SWITCH

1992 TO CURRENT MODELS

LOCK/OFF/ON

START SWITCH


SWITCH

RAM

CENTRIFUGAL

SWITCH

MOTORCHAIN

DRAWER

3


6/22

ROTARY SWITCH (Loc k/Off/On/Sta rt)

This switch, located on the right side behind the

console escutcheon sta rt s, stops, an d locks th e com-

pactor.

A safety knob is also used with this switch. The

knob can be removed when the compactor is locked

and n ot in use.

CHECKING PROCEDURE

Obtain an ohmmeter from your local st ore. We will

be doing RESISTANCE checks. This is the safest

way because the compactor is unplugged from the

power sour ce and avoids th e possibility of receiving

an electrical shock.

S te p 1 Remove one wire at a time, carefully label-

ing each wire according to the term inal ma rking on

the switch. This procedure should assure that the

right wire is reconn ected to the r ight term inal afterchecking or r eplacement .

Step2 Set th e ohmm eter scale to the lowest ohms

setting and ZERO the meter.

OFF POSITION

Step3 Touch an d hold one ohmmet er probe to the

terminal V.

Step4 Touch the other ohmmeter probe to the

term inal T-R.

Step5 The ohmmeter should show an opencircuit. If not, th e switch is bad a nd n eeds replacing.


terminal V.


term inal Y.

Step8 The ohmmeter should show an open

circuit. If not, th e switch is bad a nd n eeds replacing.

ON POS ITION


term inal V.


term inal Y.

Step11 The ohmmeter should show an opencircuit. If not, the switch is bad and needs replac-

ing.

Step12 Touch and hold one ohmmeter probe to

the term inal V.


term inal T-R.

Step14 The ohmmeter should show ZERO resis-

tance (continuity). If not, the switch is bad and

needs r eplacing.

START POS ITION


the term inal V.


term inal Y.



needs r eplacing.


the term inal V.


term inal T-R.



needs r eplacing.

Step21 Reconnect all the wires to the proper

terminals as previously marked.

W

NL1

120 VOLTS

DRAWER SAFETY SW.

T-R

BK

WW

RUN

DRIVE

MOTOR

Y

START

MOTOR

PROTECTOR

BU

GY

BKR

GY R

BUY

Y

Y

YDIRECTIONAL

SWITCH

MOTOR

CENTRIFUGAL

SWITCH

V

P

BR

DRAWER TILT

SWITCH

TOP LIMIT

SWITCHSTART SWITCH

STOP SWITCH

KEY/LOCK SAFETY SW.

V BR

4


7/22

LOCK and KEY SWITCH

This switch, located on the console turns the com-

pactor ON or OFF when the key is turned. Earlier

models, th e lock (key) switch was separa te from th e

sta rt /stop switch. Now its all in one, th at is; you

ha ve the Lock, Off, On, an d Sta rt in one switch.

CHECKING PROCEDURE






Step1 Remove one wire at a time, carefully label-



right wire is reconn ected to the r ight term inal after

checking or r eplacement .



Step3 With the key lock in the OFF position,

touch an d h old one of th e ohmmet er pr obes to one of

the terminals.


other terminal.


circuit with the key lock in the OFF position. If not,the switch is bad and n eeds replacing.

Step6 With the key lock in the ON position,


the terminals.


other terminal.


tan ce (cont inuity) with th e key lock in th e ON posi-

tion, If not, the switch is bad a nd n eeds replacing.



W

NL1

120 VOLTS

DRAWER SAFETY SW.

T-R

BK

WW

RUN

DRIVE

MOTOR

Y

START

MOTOR

PROTECTOR

BU

GY

BKR

GY R

BUY

Y

Y

YDIRECTIONAL

SWITCH

MOTOR

CENTRIFUGAL

SWITCH

V

P

BR

DRAWER TILT

SWITCH

TOP LIMIT

SWITCHSTART SWITCH

STOP SWITCH

KEY/LOCK SAFETY SW.

V BR

5


8/22

DEN SE P ACK SWITCH

This rocker type switch, located in the console,

causes the ram to put constant pressure on trash

keeping it from spr inging back.

This ra m will stay in t he down position. Remember,

the dra wer can not be opened with the r am down.

To raise the ram, ei ther turn the key knob to

START or you can move the cycle selector back to

the NORMAL position.

CHECKING PROCEDURE






Step1 Remove one wire at a time, carefully label-ing each wire according to the term inal ma rking on






Step3 Push-in on the rocker switch so the dense

switch is ON (red sh owing).


ter min al O/B or O-BK (1).


term inal O (2).



needs r eplacing.

Step7 There should be an open circuit between

the terminals O (2) and Y (3), and between the

ter min als Y (3) an d O/B or O-BK (1).

Step8 Push-in on the rocker switch so the dense

switch is OF F (red not shown).


term inal O (2).


ter min al Y (3).



needs r eplacing.

Step12 There should be an open circuit between

terminals O (2) and O/B or O-BK (1), and between

ter min als Y (3) an d O/B or O-BK (1).



CW START

CCW START

RUN

MOTOR

PROTECTOR

DRIVE MOTOR

WW

W

R

GY

BR

BU

YDRAWER TILT SW.Y

Y

Y

Y

Y

BUY

BR

GYR

NL1

120 VOLTS

DRAWER SAFETY SW.

T-R

V

START SW.


SWITCH

O/Y/BRMOTOR CENTRIFUGAL SW.

V

RUN SWITCH

DENSE PAK

SWITCH

O-BK

O-BK

BK

6


9/22

TOP LIMIT SWITCH

This top limit switch ha s only one button a nd lever

an d is located in t he console escutcheon ar ea. As the

ra m tr avels up the power screws, th e ram comes in

contact with the lever pushing the button in, shut-

ting th e compactor OFF .

CHECKING PROCEDURE













Step3 With the butt on (lever) out , touch a nd h old

one of the ohmmet er pr obes to one of th e term inals.


other terminal.


ta nce (continu ity) with the butt on (lever) out . If not,

th e switch is bad an d needs replacing.

Step6 Press the button (lever) all the way, then


the terminals.


other terminal.


circuit with t he but ton (lever) pressed all the wa y. Ifnot, the switch is bad an d needs replacing.



ADJUSTMENT

Ste p 10 Tur n t he com pac t o r on and r un i t

th rough a complete cycle.

Step11 Open the drawer and measure the dis-

tan ce from th e top of the dra wer to th e bottom of the

ra m cover. You sh ould ha ve a 1/4 -inch cleara nce.

Slide the bottom of the switch to readjust .

A.Towar d front of compa ctor will cause t he r am

to stop in a lower position.

B.Toward back of compactor will cause the ram

to stop in a higher p osition.

W

NL1

120 VOLTS

DRAWER SAFETY SW.

T-R

BK

WW

RUN

DRIVE

MOTOR

Y

START

MOTOR

PROTECTOR

BU

GY

BK R

GY R

BUY

Y

Y

YDIRECTIONAL

SWITCH

MOTOR

CENTRIFUGAL

SWITCH

V

P

BR

DRAWER TILT

SWITCH

TOP LIMIT

SWITCHSTART SWITCH

STOP SWITCH

KEY/LOCK SAFETY SW.

V BR

7


10/22

DIRE CTIONAL S WITCH

The directional switch (double pole, double throw)

has only one button and lever and is located in the

console escutcheon a rea. As th e ra m t ra vels appr ox.

3/4 inches down the power screws, the switch con-

tacts change position. When the ram bottoms and

the motor stalls or the circuit is interrupted, themotor will reverse and the ram will start traveling

up the power screws. As the ram comes in contact

with the switch lever, the lever pushes the button

in, the contacts once again change the direction of

electrical flow through the motor windings.

CHECKING PROCEDURE














touch and hold one of the ohmmeter probes to the

terminal R.


bott om Y term inal.


tance (continuity) with the button (lever) pressedall the way. If not, the switch is bad and needs

replacing.

Step6 Leave the one ohmmeter probe on the

terminal R. With the button (lever) pressed all the

way, touch the other ohmmeter probe to the rest of

the term inals (not bottom Y). They should show an

open circuit; it not, the switch is bad and needs

replacing.

W

NL1

120 VOLTS

DRAWER SAFETY SW.

T-R

BK

WW

RUN

DRIVE

MOTOR

Y

START

MOTOR

PROTECTOR

BU

GY

BKR

GY R

BUY

Y

Y

YDIRECTIONAL

SWITCH

MOTOR

CENTRIFUGAL

SWITCH

V

P

BR

DRAWER TILT

SWITCH

TOP LIMIT

SWITCHSTART SWITCH

STOP SWITCH

KEY/LOCK SAFETY SW.

V BR

8


11/22


touch and hold one of the ohmmeter probes to the

term inal GY.

Step8 Touch th e oth er ohmmet er probe to the top

BU terminal.


tance (continuity) with the button (lever) pressedall the way. If not, the switch is bad and needs

replacing.


term inal GY. With th e butt on (lever) pressed all the

way, touch the other ohmmeter probe to the rest of

the terminals (not top BU). They should show an

open circuit; it not, the switch is bad and needs

replacing.

Step11 With the button (lever) out, touch and

hold one of th e ohm meter probes to th e term inal R.


bottom BU terminal.





terminal R. With the button (lever) out, touch the

other ohmmeter probe to the rest of the terminals

(not bottom BU). They should show an open circuit;

it not, the switch is bad an d needs r eplacing.

Step15 With the button (lever) out, touch and

hold one of the ohmm eter probes to termina l GY.


top Y term inal.





term inal GY. With th e butt on (lever) out , touch t he

other ohmmeter probe to the rest of the terminals

(not top Y). They sh ould show an open circuit ; it n ot,th e switch is bad an d needs replacing.



9


12/22

COMBINATION SWITCH (Top Limit

and Direct ional)

This type combination switch has only one button

and lever and is located in the console escutcheon

area. As the ra m t ravels up the power screws, the

ram comes in contact with the lever pushing it in

somewhat changing the direction of electricity flowth rough the dr ive motor windings. As the ra m tr av-

els far th er up t he power screws, it push es the lever

in all the way and shu ts th e compactor OFF . As the

ra m t ravels downward 1/2 inch, th e top limit switch

closes a parallel circuit to the start switch. At 3/4

inch the centr ifugal switch opens and th e combina-

tion switch changes the circuit to the reverse start

windings in the m otor.

CHECKING PROCEDURE


be doing RESISTANCE checks. This is the safestway because the compactor is unplugged from the










POSITION 1


term inal Y.


term inal GY.

Step5 The ohmmeter should show ZERO resis-tance (continuity). If not, the switch is bad and

needs r eplacing.


terminal BR.


term inal O or V.



needs r eplacing.

Step9 Touch an d hold one ohmmet er probe to theterminal R.


term inal Y.


circuit. If not, th e switch is ba d an d needs r eplacing.

CW START

CCW START

RUN

MOTOR

PROTECTOR

DRIVE MOTOR

WW

W

R

GY

BR

BU

YDRAWER TILT SW.Y

Y

Y

Y

Y

BUY

BR

GYR

NL1

120 VOLTS

DRAWER SAFETY SW.

T-R

V

START SW.


SWITCH


V

RUN SWITCH

DENSE PAK

SWITCH

O-BK

O-BK

BK

10


13/22

POSITION 2

Step12 Press the button (lever) somewhat or un-

til you h ere th e first click, th en t ouch a nd hold one

of th e ohm meter probes to th e term inal Y.


terminal R.


tance (continuity) with the button (lever) pressed

somewhat or to the first click. If not, the switch is

bad an d needs replacing.


th e termina l O or V.


terminal BR.



somewhat or to the first click. If not, the switch is

bad an d needs replacing.


the terminal GY.


term inal Y.


circuit with the butt on (lever) pressed somewha t or

to the first click. If not, th e switch is bad a nd n eeds

replacing.

POSITION 3

Step21 With the button (lever) pressed all the

way, touch a nd h old one of the ohmmeter probes to

the terminal R.


term inal Y.



all the way. If not, the switch is bad and needs

replacing.



the terminal GY.


term inal Y.


circuit with t he but ton (lever) pressed all the wa y. If

not, the switch is bad an d needs replacing.



the termina l BR.


term inal O or V.


circuit with t he but ton (lever) pressed all the wa y. If

not, the switch is bad an d needs replacing.



11


14/22

CENTR IFU GAL SWITCH

This par t is located on the dr ive motor. It is used in

getting voltage to the drive motor start and run

windings at the same time. As the drive motor in-

creases in speed, an actuating arm inside the drive

motor drops, causing the button on the centrifugal

switch t o pop out, dropping the volta ge to the sta rtwindings.

Because of different drive motor brands used, it is

necessary when replacing th e drive motor centr ifu-

gal switch, that you use the same brand as your

drive motor.

CHECKING PROCEDURE













For drive motors wi th 1 s tart winding, see

steps 3-10.

For drive motors with 2 start windings, see

steps 11-18

MOTOR IDLE MOTOR RUNNING

MOTOR WITH S INGLE

START WINDIN G

MOTOR WITH D UAL

START WINDIN G


terminal BK or n umber 4.


term inal GY or number 2.

Step5 With the centrifugal switch butt on pushed

in, the ohmmeter should show ZERO resistance

(continuity). If not, the switch is bad and needs

replacing.

Step6 Term ina l Y to O/BK should be open.

.10 MIN.

3 R 1

O/BKY

W

4

BK 2

GY

SWITCH

YELLOW

BLACK

RUN

PROTECTOR

START

BLUE

RED

WHITE

3 R 1

O/BKY

W

4

BR 2

BU

SWITCH

JUMPER

WIRE

NOTE: LEAVE JUMPER WIRE INTACT

BLUE

RED

BROWN

RUN

START 1

PROTECTOR

START 2

YELLOW

GRAY

WH

ITE

12


15/22


terminal BK or number 4.


term inal GY or nu mber 2.

Step9 With th e centr ifugal switch butt on out, th e

ohmmeter should show an open circuit. If not, the

switch is bad a nd n eeds replacing.

Step10 Terminal Y to O/BK should show ZERO

resistance (continuity).


the term inal BR or nu mber 4.


term inal BU or nu mbers 1 or 2.

Ste p 13 Wi t h t he cen t r i f uga l s wi t ch bu t t on

pushed in, the ohmmeter should show ZERO resis-


needs r eplacing.

Step14 Terminal Y to O/BK should be open.


the termina l BR or nu mber 4.


terminal BU or num bers 1 or 2.

Step17 With the centrifugal switch button out,the ohmmeter should show an open circuit. If not,

the switch is bad and n eeds replacing.

Step18 Terminal Y to O/BK should show ZERO

resistance (continuity).



CW START

CCW START

RUN

MOTOR

PROTECTOR

DRIVE MOTOR

WW

W

R

GY

BR

BU

YDRAWER TILT SW.Y

Y

Y

Y

Y

BUY

BR

GYR

NL1

120 VOLTS

DRAWER SAFETY SW.

T-R

V

START SW.


SWITCH


V

RUN SWITCH

DENSE PAK

SWITCH

O-BK

O-BK

BK

13


16/22

DR IVE MOTOR

This motor, located in the lower back, is used to

drive the power screws, cau sing the r am to move up

or down.

CHECKING PROCEDURE

Obtain an ohmmeter from your local st ore. We willbe doing RESISTANCE checks. This is the safest




NOTE: DO NOT remove the white or blue wire

coming out of the motor. These wires are connected

to the overload protector.



the centrifugal switch. This procedure should as-

sure that the right wire is reconnected to the rightterm inal after checking or replacement.




term inal on th e (BU) blue wire.


ter min al on t he (Y) yellow wire.

Step5 The ohmmeter should show a reading

between 3-5 ohms on the ohms scale. If not, the

drive motor is bad an d needs r eplacing.


ter min al on t he (Y) yellow wire.


term inal on th e (W) white wire.





term inal on th e (BU) blue wire.


term inal on th e (W) white wire.


tan ce (cont inuity). If not, th e drive motor is bad a nd

needs r eplacing.


the t ermina l on t he (R) red wire.


term inal on t he (GY) gra y wire.





the t ermina l on t he (R) red wire.


term inal on t he (BK) black, th e (BR) brown, or th e

(O) oran ge wire.





the term inal on th e (GY) gra y wire.


term inal on t he (BK) black, th e (BR) brown, or th e(O) oran ge wire.




14


17/22

GROUNDING CHECK


th e meta l fram e of the drive motor.

Step22 One at a t ime, touch t he other ohmmeter

probe to all the term inals on th e wires coming out of

th e drive motor.


circuit when touching these terminals. If not, the




CW START

CCW START

RUN

MOTOR

PROTECTOR

DRIVE MOTOR

WW

W

R

GY

BR

BU

YDRAWER TILT SW.Y

Y

Y

Y

Y

BUY

BR

GYR

NL1

120 VOLTS

DRAWER SAFETY SW.

T-R

V

START SW.


SWITCH


V

RUN SWITCH

DENSE PAK

SWITCH

O-BK

O-BK

BK

15


18/22

DRAWER SAFETY SWITCH

This drawer safety switch is located in the back

right side, and prevents the ram from operating if

th e drawer is removed or pu lled out somewha t.

CHECKING PROCEDURE

Obtain an ohmmeter from your local st ore. We willbe doing RESISTANCE checks. This is the safest











Step3 With th e butt on (lever) out, t ouch a nd h old

one of the ohmmeter probes to one of the term inals.


other terminal.


circuit with the button (lever) out. If not, the switch

is bad an d needs replacing.



the terminals.


other terminal.




replacing.



CW START

CCW START

RUN

MOTOR

PROTECTOR

DRIVE MOTOR

WW

W

R

GY

BR

BU

YDRAWER TILT SW.Y

Y

Y

Y

Y

BUY

BR

GYR

NL1

120 VOLTS

DRAWER SAFETY SW.

T-R

V

START SW.


SWITCH


V

RUN SWITCH

DENSE PAK

SWITCH

O-BK

O-BK

BK

LOCATED IN-LINE AT

END OF DRAWER TRACK

LOCATED INSIDE AND

LOWER BACK OF FRAME

16


19/22

DR AWER TILT SWITCH (Lev er )

This drawer tilt switch is located in the back left

side, and in-line with th e end of the dr awer t ra ck. If

the drawer is open or tilted during compaction be-

cause of improper loading, the compactor will stop.

To restart the compactor the start switch must be

restarted. When the ram comes to the top, opendrawer and redistribute the trash .

CHECKING PROCEDURE









right wire is reconn ected to the r ight term inal afterchecking or r eplacement .



Step3 With th e butt on (lever) out, t ouch a nd h old

one of the ohmmeter probes to one of the term inals.


other terminal.


circuit with the button (lever) out. If not, the switch




the terminals.


other terminal.




replacing.



W

NL1

120 VOLTS

DRAWER SAFETY SW.

T-R

BK

WW

RUN

DRIVE

MOTOR

Y

START

MOTOR

PROTECTOR

BU

GY

BKR

GY R

BUY

Y

Y

YDIRECTIONAL

SWITCH

MOTOR

CENTRIFUGAL

SWITCH

V

P

BR

DRAWER TILT

SWITCH

TOP LIMIT

SWITCHSTART SWITCH

STOP SWITCH

KEY/LOCK SAFETY SW.

V BR

17


20/22

DRAWER TILT SWITCH (P lun ge r)

This par t is located on the front of th e fra me. When

the drawer is closed, the plunger is depressed. The

plunger contacts are open at this time. As the ram

start s i ts downward tra vel and the tra sh causes the

door to pop open somewhat, the contacts close caus-

ing curr ent flow thr ough the reverse star t windingsin th e motor. This causes th e motor t o stall, reverse

and retur n the ram t o the top.

CHECKING PROCEDURE








the switch. This procedure should assure that theright wire is reconn ected to the r ight term inal after




Step3 Pu sh in on th e plunger of th e switch wh ich

simulates th e dra wer being closed.


terminal BU.


terminal BR.


circuit with the plunger pressed. If not, the switch


Step7 Leave the plunger out as if the drawer is

open.


terminal BU.


terminal BR.

Step10 The ohmmeter should show ZERO resis-tance (continuity). If not, the switch is bad and

needs r eplacing.



CW START

CCW START

RUN

MOTOR

PROTECTOR

DRIVE MOTOR

WW

W

R

GY

BR

BU

YDRAWER TILT SW.Y

Y

Y

Y

Y

BUY

BR

GYR

NL1

120 VOLTS

DRAWER SAFETY SW.

T-R

V

START SW.


SWITCH


V

RUN SWITCH

DENSE PAK

SWITCH

O-BK

O-BK

BK

18


21/22

NOTES

19


22/22

NOTES

compactor 2

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