Whirlpool WRI22SW, Service Manual

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Compressor won't run
Check items under complaint,
"compressor won't run."
Compressor runs
continously
Check items under complaint,
"compressor runs but no refrigeration. Or
insufficient refrigeration."
Frezzer/ Refrigerator comprtment too
cold.
Thermistor & potentiometer
(a) Set too cold
(b) Thermistor not properly
positioned.
(c ) Out of calibration or not
functioning
Turn knob to anticlockwise towards warmer
side .Ensure proper positioning of the
thermistor Replace if necessary.
Door seal Adjust door for proper door seal.
Vold in insulation
voids are not likely to occur within cabinet
wall.If in acassible area, fill it with fiber glass.
Abnormal usage Instruct customer to cover foods and liquids.
door seal
Check door seal and and adjust the door,if
necessary instruct customer to be sure door
closes completely.
Insufficient air circulation
Make sure return air flow is not
resistricted.Increase cold air flow by operating
refrigerator compartment as cold as possible
without freezing food.
External sweeting
Internal sweating
Incomplete defrosting or high
temperatures during defrosting
Check thermistor defrost control.Check
resistance of thermistor as per specified value
or check loose fittment of freezer thermistor
may cause the defrost heater to stay on too
long.change thermistor if found defective.
Freezer thermistor
Defrost heater
Check defrost heater with
ohmmeter.Inoperative defrost heater will result
in frost and ice accumulation on evaporator.
Replace if defective.
SERVICE
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4
REV-00 25/04/07