Whirlpool MID-LINE DESIGN, User Manual

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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 1
Ω
to 5
Ω
2.Meter should read 3
Ω
to 11
Ω
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 6K
Ω
to 9K
Ω
.
DIAGNOSTIC TESTS