Troubleshooting Procedures

Check:

1. Air Vents.

Unit operates normal, but little or no heating is produced with an oven load.

Check if fan motor operates when START is pressed.

Does fan motor

YES

Measure

 

 

 

 

 

operate when

resistance

 

 

 

 

 

 

 

 

 

 

 

 

 

START is

 

 

 

of high voltage

 

 

 

 

 

pressed.

 

 

 

 

 

 

 

 

 

 

 

capacitor.

Does capacitor have

 

 

 

 

 

 

 

 

 

NO

 

 

 

 

 

 

 

 

correct resistance.

 

 

 

 

 

 

 

 

See to Testing

 

 

 

 

 

 

 

 

NO

 

 

 

 

 

 

 

 

Procedures on

 

 

 

 

 

 

 

 

 

 

 

 

 

Place a jumper

 

 

 

 

 

 

 

page 10.

 

YES

 

 

 

 

 

 

 

 

 

 

 

 

wire across

 

 

 

Replace high

 

 

 

 

 

 

thermostat.

 

 

 

 

 

 

 

 

 

 

 

voltage

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

capacitor.

 

 

 

Replace

magnetron.

Does

YES

 

fan motor

 

 

operate.

 

Replace

NO

 

thermostat.

 

 

 

 

Unit operates.

Measure

 

 

resistance

 

 

of fan motor,

 

 

approximately

 

38 ohms.

 

 

 

 

Replace

 

 

circuit

Is the resistance

YES

board.

 

of fan motor

 

 

correct.

 

 

NO

 

 

 

Replace

 

fan motor.

©2002 Maytag Appliances Company

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16021668 Rev. 0

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Maytag ACO1530AB, ACO1840AC, ACO1560AB, ACO1840AB, ACO1560AC, ACO1560AS, ACO1860AC Wire across Replace high Thermostat