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There are several reasons why your Kenmore oven model 790.7343312 may be randomly turning off. Here are some possible causes:
Power supply issues: Check if the oven is properly plugged in and if there are any issues with the power outlet or circuit breaker. Loose connections or faulty wiring can also cause power supply issues.
Temperature sensor problems: The temperature sensor is responsible for regulating the oven's temperature. If it's malfunctioning, it can cause the oven to turn off randomly. You can check the sensor with a multimeter or call a professional to diagnose and fix the problem.
Faulty control board: The control board controls the oven's various functions, and a malfunctioning one can cause the oven to turn off unexpectedly. Again, you can use a multimeter to check the control board's voltage output or seek professional help.
Overheating: Overheating can cause the oven to shut down as a safety measure. Check if the oven's ventilation system is functioning correctly, and remove any obstructions that may be blocking the airflow.
Malfunctioning oven door switch: If the oven door switch is malfunctioning, it can cause the oven to shut down randomly. Check if the switch is working correctly, and replace it if necessary.
Try turning off the oven at the main fuse box, remove the fuse/circuit breaker for 10 mins, insert the fuse/circuit breaker. This may reset the oven and you need to set up the time again.
I tried randomly pushing 2 buttons at a time, and when I pushed "Timer Off/On" and "Cancel" together it unlocked and is now working fine. The following day it beeped a lot for an hour or so (must have been catching up on previous pushes) but now is back to normal.
the oven may be trying to protect itself because of a faulty device that says "I'm too hot". As electric clothes dryers have a thermal high temp limit switch to protect them, look for this device (may be 1 inch round with 2 wires connected) and replace it
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