Roper TOP-MOUNT REFRIGERATOR Specifications download pdf (Page 83)

77

PROBLEM PROCEDURE READINGS

COMPRESSOR 1.Touch probes of ohmmeter

to M and C terminals

2.Touch probes of ohmmeter

to S and C terminals

3.

Ground Test:

Touch one

probe to the chassis and the

other probe to the M, S and

C terminals

1.Meter should read 1Ω to 5Ω

2.Meter should read 3Ω to 11Ω

3.Infinity for each check. Any resistance

indicates a short.

TIMER

NOTE: The production timer

(Paragon) has a 10 hour

cumulative run time with a 21-

minute defrost duration.

The service replacement timer

has an 8 hour cumulative run

time with a 21-minute defrost

duration.

To test the timer, perform the

following steps:

1.Use a screwdriver and

manually turn the timer

clockwise until you hear it

“click.” This will place the

timer in the “defrost” posi-

tion. If the refrigerator was

running, the compressor

and fan(s) will turn off.

2.Unplug the unit.

3.Disconnect the 4-wire

connector from the timer.

4.Set the ohmmeter to the

Rx10K scale.

5.Zero the meter.

CHECKING THE MOTOR

1.

Paragon Timer:

The motor

windings have a capacitor

connected in series. Use

the same test procedure

that you would use for

checking a capacitor.

Momentarily touch the

probes to terminals PK and

R; then reverse the probes

and touch the terminals

again.

2.

Mallory Timer:

Touch the

meter probes to timer

terminals PK and R.

Paragon Timer

- whenever you first touch

the terminals, the meter should momen-

tarily deflect and show continuity.

Mallory Timer

- the meter should read 6KΩ

to 9KΩ.

DIAGNOSTIC TESTS

1 2 ... 78 79 80 81 82 83 84 85 86 87 88 ... 107 108

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