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Maytag Ice2O MFI2665XEM Owner's Manual Page 9

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Component Testing
!
WARNING
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.
©2006 Maytag Services 16026312 9
Component Description Test Procedures
Thermistor
Temperature sensing device Check resistance across leads.
Nominal
Temperature Resistance
77
°F 9,820 - 10182 ohms
36°F 29,198 – 29,788 ohms
0°F 84,561 – 88,011 ohms
ECM condenser
motor
Condenser fan moves cooling air across
condenser coil and compressor body
.
Condenser fan motor is in parallel circuit
w
ith compressor.
1. Use control board testing to check operation of motor.
2. If motor does not operate check for voltage at motor.
3. If no voltage at motor replace control board.
Electric damper
control
Damper control balances the air delivery
between refrigerator and freezer
compartments providing temperature
control for refrigerator.
Electrical voltage activates damper
control and door closes restricting flow
of
air from freezer/ ice box compartment to
refrigerator compartment.
1. Use control board testing to check operation of damper.
2. If damper does not operate check for voltage at damper.
3. If no voltage at damper replace control board.
Auger Motor Auger motor is controlled by Dispenser
switch. Depressing dispenser switch
activates Auger Motor, Ice Box Solenoid
and Door Chute Motor.
1. Use control board testing to check operation of motor.
2. If motor does not operate check for voltage at motor.
3. If no voltage at motor replace control board.
Ice Box Solenoid Ice Box Solenoid is controlled by
Dispenser switch. Depressing dispenser
switch activates Auger Motor, Ice Box
Solenoid and Door Chute Motor.
1. Use control board testing to check operation of solenoid.
2. If motor does not operate check for voltage at motor.
3. If no voltage at solenoid replace control board.
Door Chute Motor Door chute motor is controlled by
Dispenser switch. Depressing dispenser
switch activates Auger Motor, Ice Box
Solenoid and Door Chute Motor.
1. Use control board testing to check operation of motor.
2. If motor does not operate check for voltage at motor.
3. If no voltage at motor replace control board.
DispenserCavity
Heater
Cavity Heater is controlled by Control
Board.
1. Use control board testing to check operation of heater.
2. If heater does not operate check for voltage at heater.
3. If no voltage at heater replace Control Board.
Mullion Heater Mullion Heater is controlled by Control
Board.
1. Use control board testing to check operation of heater.
2. If heater does not operate check for voltage at heater.
3. If no voltage at heater replace Control Board.
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