Maytag MFI2266AES Service Manual page 9

Component Testing
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.
Component Description
Thermistor Temperature sensing device
ECM condenser Condenser fan moves cooling air across
motor condenser coil and compressor body.
Condenser fan motor is in parallel circuit
with compressor.
Electric damper Damper control balances the air delivery
control 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.
Auger Motor Auger motor is controlled by Dispenser
switch. Depressing dispenser switch
activates Auger Motor, Ice Box Solenoid
and Door Chute Motor.
Ice Box Solenoid Ice Box Solenoid is controlled by
Dispenser switch. Depressing dispenser
switch activates Auger Motor, Ice Box
Solenoid and Door Chute Motor.
Door Chute Motor Door chute motor is controlled by
Dispenser switch. Depressing dispenser
switch activates Auger Motor, Ice Box
Solenoid and Door Chute Motor.
DispenserCavity Cavity Heater is controlled by Control
Heater Board.
Mullion Heater Mullion Heater is controlled by Control
Board.
©2006 Maytag Services
!
WARNING
Test Procedures
Check resistance across leads.
Temperature
77°F
36°F
0°F
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.
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.
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.
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.
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.
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.
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.
16026312
Nominal
Resistance
9,820 - 10182 ohms
29,198 – 29,788 ohms
84,561 – 88,011 ohms
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