Troubleshooting Chart - Maytag MFI2266AES Service Manual

Troubleshooting Chart

To avoid risk of electrical shock, personal injury, or death, disconnect electrical power source to unit, unless test
procedures require power to be connected. Discharge capacitor through a resistor before attempting to service.
Ensure all ground wires are connected before certifying unit as repaired and/or operational.
Troubleshooting chart on following pages contains symptoms that may be seen in malfunctioning units. Each
symptom is accompanied by one or more possible causes and by a possible remedy or test to determine if
components are working properly.
Symptom
Unit does not run
Refrigerator section too warm
24
!
WARNING
Possible Causes
No power to unit
Faulty power cord
Low voltage
Faulty motor or freezer temperature
control
Faulty relay
Faulty compressor
Faulty overload
Excessive door opening
Overloading of shelves
Warm or hot foods placed in cabinet
Cold control set too warm
Poor door seal
Refrigerator airflow
Faulty condenser fan or evaporator
fan
Faulty compressor
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Corrective Action
Check for power at outlet. Check
fuse box/circuit breaker for blown
fuse or tripped breaker. Replace or
reset.
Check with test light at unit; if no
circuit and current is indicated at
outlet, replace or repair.
Check input voltage for proper
voltage. Take appropriate action to
correct voltage supply problem.
Check all connections are tight and
secure.
Use Control Board Service Mode to
check motor.
Check relay. Replace if necessary.
Check compressor motor windings
for opens/shorts.
Perform compressor direct wiring
test.
Replace if necessary.
Check overload for continuity.
NOTE: Ensure
compressor/overload are below
trip temperature before testing.
Replace if necessary.
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Set control to colder setting.
Level cabinet. Adjust hinges.
Replace gasket.
Check damper is opening by
removing grille. With door open,
damper should open. Replace if
faulty.
Check Ice Box fan for operation.
Turn control setting to colder
position.
Use Control Board Service Mode to
check motor.
Check fan and wiring. Replace if
necessary.
Use Control Board Service Mode to
check motor.
Replace compressor.
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