Amana Microwave Error Code E12

The E12 code on an Amana microwave signals a gas sensor short error. The control board has detected an abnormally low resistance in the gas sensor circuit, which indicates a short in the sensor, its wiring, or its connector. The appliance uses this sensor to monitor cooking conditions automatically, and the error prevents operation until the fault is resolved.

It is not recommended to continue using the microwave while E12 is active. A shorted sensor circuit can lead to inaccurate cooking control and may indicate underlying wiring damage that could pose a safety risk. The appliance should be unplugged until the fault is diagnosed and repaired.

Repair costs vary depending on the failed component. A replacement gas sensor typically costs in the range of $15 to $50 for the part alone, while a PCB replacement can range from $80 to $200 or more. Adding professional labor generally brings the total repair cost to somewhere between $100 and $300, depending on the technician and the extent of the damage.

Some causes of E12 are DIY-accessible, such as reseating a loose connector, cleaning a corroded terminal, or drying out moisture at the sensor plug. If the sensor or wiring is damaged, replacing those components requires disassembling the microwave, which should only be done after unplugging the unit and allowing high-voltage capacitors to discharge. PCB-level repairs are generally best left to a qualified technician.

A power reset, such as unplugging the unit for a few minutes, may temporarily clear the E12 code, but the error will return if the underlying short circuit has not been corrected. A reset alone does not repair a faulty sensor, damaged wiring, or a defective connector. Proper diagnosis of the sensor circuit is necessary for a lasting fix.