F4E6 concerns the wave guide temperature sensor in the microwave section. A one-minute breaker reset is the owner step.
Model compatibility: JennAir reuses codes across series and model years, so F4E6 may mean something different on another appliance or generation. Confirm this against your model’s documentation and record your full model number before acting.
Plain language
What this code means
Possible problem with the microwave wave guide temperature sensor, or the associated wiring.
The entry
JennAir points to the temperature sensor at the microwave’s wave guide, or the wiring that belongs to it. Both the wall oven page and the built-in microwave page word it the same.
What a wave guide is
In general terms a wave guide is a duct that moves microwave energy from its source into the cooking cavity. F4E6 concerns that duct’s temperature sensor. JennAir mentions the duct only inside the sensor’s name.
Owner action
Switch the breaker(s) off.
Wait a full minute.
Switch them on.
Look for F4E6 during the next minute.
Check the oven runs.
That reset is the only owner-level action.
Not an owner job
The wave guide lies inside the microwave assembly and is not for home inspection. Checking the sensor requires a technician with proper equipment.
Q and A
Is F4E6 connected to F4E3? Both concern temperature sensors in the microwave section, though each names its own sensor.
Do I replace anything? No owner replacement is listed.
Also missing are a temperature limit, a sensor location and an owner test. The sensor, its wiring and the reset are what JennAir provides.
Important safety warning. Do not attempt repairs involving electrical components, gas, water lines, refrigerant or sealed systems. Unplug the appliance if it is safe to reach the outlet, and leave internal diagnostics to a qualified technician.
Seeing this code on your JennAir appliance?
Book a specialist visit for a clear estimate and approval before any repair.
