JennAir Over-the-Range Microwave E11 / E12 Code: Gas Sensor

If your JennAir over-the-range microwave displays E11 or E12, the part in question is the gas sensor. JennAir words the two a little differently, but they arrive at the same place.

• E11: the gas sensor sent the control board a fault report.
• E12: trouble with the gas sensor, or with the wiring tied to it.

About the sensor

Loosely speaking, a gas sensor feeds the control information about the air around the microwave. What it measures on this model, and what event set off the code, goes unmentioned by JennAir. The only statement is that the sensor or its wiring may be at fault.

The manufacturer’s reset

1. At the circuit breaker, cut power to the microwave for a minute.
2. Restore power at the breaker.
3. Watch the unit for a minute, looking for the code to reappear.
4. Check that the microwave operates.

Nothing further for owners

The page offers no steps after the reset. A returning E11 or E12 comes with the note that a qualified technician may be needed. Reaching or swapping the sensor means opening the microwave, so leave that alone.

Similar sensor codes

• E24: an overheat code in which the gas sensor is one of four suspects
• E21 and E22: a separate sensor pair, for the thermal sensor circuit (open or shorted)

Gas sensor service for Los Angeles microwaves

Our Los Angeles number is (310) 622-9465. When you call about E11 or E12, say which of the two appeared and whether the breaker reset changed anything. The microwave service page lists what we handle.

Source: JennAir Product Help, Over-the-Range Microwave Error Codes