Amana Microwave Error Code E22

E22 on an Amana microwave signals a thermal sensor short error. The control board has detected that the thermal sensor circuit is reading a shorted condition rather than a valid resistance value. This causes the microwave to stop operating as a safety precaution. The fault points to the sensor, its wiring, connectors, or the PCB.

No, you should not attempt to use the microwave while E22 is active. The microwave typically locks out operation when this code appears specifically to prevent unsafe conditions related to unmonitored heating. Continue to keep the unit unplugged until the fault has been diagnosed and corrected.

Unplugging the microwave for a few minutes and restoring power may temporarily clear the E22 code, but it will return if the underlying fault in the thermal sensor circuit has not been corrected. A reset does not repair a shorted sensor, damaged wiring, or a faulty PCB. The root cause must be identified and resolved to permanently clear the code.

A knowledgeable DIYer can begin by inspecting the sensor wiring harness and connector for visible damage or loose connections, which does not require special tools. Testing the thermal sensor with a multimeter to check for a shorted condition is also a straightforward step. However, working inside a microwave carries a serious risk of electric shock from stored capacitor charge, so anyone unfamiliar with safely discharging microwave capacitors should have a qualified technician perform the repair.

Repair costs vary depending on the root cause. A replacement thermal sensor is generally an inexpensive part, typically in the range of $10 to $40 for the component alone. If the control board requires replacement, parts can range from $60 to $150 or more. Adding professional labor, total repair costs commonly fall between $80 and $250 depending on the failed component and service rates in your area.