How to Fix / Troubleshooting

Safety: Disconnect power before any disassembly. Avoid contact with high-voltage components.

Reset unit: Unplug for 10 minutes and reconnect. Try a short cook cycle with a cup of water. If E-22 reappears, proceed to inspection.
Check for overheating: Make sure vents are clear and that the unit is not installed in a confined space without proper airflow.
Locate sensor (advanced): The cavity temperature sensor is often mounted on the top or side of the oven cavity, accessible after removing the outer cabinet. Inspect for broken wires or burnt insulation.
Reseat connector: Follow the sensor wires to the main PCB and reseat the connector. If the sensor appears damaged or tests open/shorted with a meter, replace it.
Control board: If a new sensor does not resolve the error, the main PCB may be defective and should be replaced by a technician.

Microwave displays 'E-22' and will not heat or stops shortly after starting.

Possible Causes