JennAir Combination Wall Oven Code F4 E6: wave guide temperature sensor

What F4 E6 means

JennAir combination wall ovens with a microwave show F4 E6 when there may be a problem with the microwave wave guide temperature sensor or its wiring. The wave guide carries microwave energy into the cavity, so its temperature is closely watched. With F4 E6 on the display, the microwave may shut down. The microwave may stop in the middle of a cycle.

Common causes of F4 E6

Wave guide temperature sensor that has failed or drifted
Wiring to the sensor that has worked loose
Heat built up around the wave guide

✓ One safe check you can try

1. Press Cancel and let the microwave cool for fifteen minutes. 2. Make sure the area around the oven is clear. 3. Leave the breaker off for a minute, then turn the oven on and watch the wave guide sensor result. 4. Restore power and run a short water test. 5. Should the oven display F4 E6 again, we are one call away from checking the wave guide sensor.

! Why to stop there

The wave guide area is where high-voltage parts live, so we keep owners out of it.
A sensor reading problem and a real heat problem look alike from outside.
Running an overheated microwave can shorten the life of expensive parts.

Opening a panel yourself does not automatically cancel a manufacturer warranty, but it can cause accidental damage, and some manufacturers set their own service conditions. Check your warranty terms, or ask us, before deciding.

→Same appliance

Other Wall Oven codes

PUSH or PSHJennAir Wall Oven Display PUSH or PSH: Press start Sabbath, Sab, 5Ab, or 5A7JennAir Wall Oven Display Sabbath, Sab, 5Ab or 5A7: Sabbath mode is on FC E6JennAir Wall Oven Code FC E6: Wi-Fi power module FC E7JennAir Wall Oven Code FC E7: Oven did not connect to router FC E8JennAir Wall Oven Code FC E8: Registration error FC E9JennAir Wall Oven Code FC E9: Wi-Fi power module wiring Feature Not AvailableJennAir Wall Oven Message "Feature Not Available": Follow the Prompt on the Display Flashing Time, Clock, 12:00, Power Loss or Enter TimeJennAir Wall Oven Display Flashing Time or 12:00: Set the clock after power loss

F4 E6F4 E6 questions

What is the wave guide?

It is the channel that carries microwave energy from the source into the cooking cavity. A sensor watches its temperature to protect the parts nearby.

Does F4 E6 mean a fire risk?

The code is a protective alert, not a sign of fire. Still, stop using the microwave until it has been checked. It can happen even with a cool microwave if the sensor reading is wrong.

What will you do first?

We test the sensor and its wiring, explain the result and provide a written price. Our work includes a 30-day workmanship warranty. Written quote first, with our 30-day workmanship warranty after the repair.