How Do You Troubleshoot a Jenn-Air Microwave?


Quick Answer

Troubleshoot a Jenn-Air microwave by checking for common problems such as power supply issues, burnt-out magnetron tubes and defective turntable motors. While examining these common problems, look for complex issues that require fixing.

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Full Answer

If a Jenn-Air microwave is not working, first confirm that the appliance is switched on and that the power cord is fully plugged into a grounded wall outlet. Replace blown fuses and reset any tripped circuit breakers. Check if the microwave door is shut properly because the appliance cannot start if the door is not securely closed.

If the microwave does not heat, the magnetron tube may have burnt out. The magnetron uses high-voltage current to produce the frequency used to cook food. A burned-out magnetron is not repairable and must be replaced. If this does not fix the problem, examine the door switch. Use an ohmmeter to test the door switch for continuity. If the door switch is working properly, check whether the high-voltage transformer has burnt out, and replace it if necessary.

If a Jenn-Air microwave turntable does not turn, first check if the turntable motor is worn out, and replace it. If the problem persists, examine the main control board and the touchpad. If any of these parts is defective, replace it to fix the problem.

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