Whirlpool WRI22SW, Service Manual

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High ambient and/or
abnormal usage On initial Pull-down in high ambient,the compressor may cut
off on overload,instruct customer
Low or high voltage
Check voltage with voltmeter.voltage at outlet should be 198V
to 260 V AC at the moment of start, low voltage may cause
false starts.high voltage may cause compressor to overheat.
Relay and/ or OLP Replace the defective part.
Compressor motor winding
Shorted Overcharge
Check for winding resistance, Replace compressor if found
defective .check for high wattage and frosted suction line
.Evacuate and recharge with correct charge.
Compressor stuck Change compressor
Thermistor &
potentiometer.
(a) Set too warm
(b) Thermistor not properly
located
(c) out of calibration or not
functioning
(a)Turn knob to clockwise towards colder side.
(b)See that thermistor is properly located.
( c) Check potentiometer and thermistor resistance .It should
be between 0-22 K
Interior air circulation:
(a) Evaporator fan
(b)Restriction in ducts
(c ) Air control open too
wide
(a) check eveaporator fan .Replace if defective
(b) Check for and remove obstruction in ducts.
Abnormal usage Instruct customer
Bad door seal or door not
closing Adjust door to obtain proper door seal instruct customer to
make sure door closed completely.
High ambient
Locate in area out of direct rays of sun and away from heat
registers or other sources of heat.
Cabinet lights
Check to make sure door switch is closed. Replace ,if
necessary.
Excessive frost on
evaporator
Check items under complaint, "incomplete defrosting "
Freezer fan switch
Check for proper closing of Freezer switch, Check for freezer
switch connection.Replace if found defecticve
Conpressor kicks out on
overload.
Frezzer/ refrigerator
compartment too warm
SERVICE
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REV-00 25/04/07