JennAir JMV Code F1E1: relay control board could not run function

What F1E1 means

F1E1 on a JennAir over-the-range microwave hood, for example the JMV9196CS or a JMV8000 series unit, means the oven could not execute the function you asked for. Guidance points to the relay control board and the wiring around it. Owners see F1E1, and the microwave may refuse to start, lose power in the middle of a cycle, or stop heating. Built-in JennAir microwaves use a different board for this code.

Common causes of F1E1

Relay control board is not switching loads correctly
Wiring harness or connector to the relay board is loose
Relay board has an electrical failure after a power surge

✓ One safe check you can try

1. Press Stop/Cancel and open and close the door once. 2. Switch the microwave breaker off for about a minute, then on again. 3. Run a 30-second test with a cup of water. 4. If F1E1 comes back, leave the unit alone and book service. Do not unplug a unit that is hot or smoking; use the breaker.

! Why to stop there

The relay board controls power to the magnetron and fan, so it works near high voltage.
A reset hides rather than repairs a failing board.
The hood must be lowered from the mount to reach the board.

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.

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Other Microwave codes

F8 E3JennAir Built-In Microwave Code F8 E3: one more cooling alert Sabbath, Sab, 5Ab, or 5A6JennAir Built-In Microwave Message "Sabbath, Sab, 5Ab, or 5A6": Sabbath Mode On F8 E4JennAir Built-In Microwave Code F8 E4: exhaust air sensor SEJennAir JMV Code SE: keypad problem F8E5JennAir JMV Code F8E5: exhaust air temperature sensor F9JennAir JMV Code F9: appliance or relay control board F9Q1JennAir JMV Code F9Q1: touch pad problem FC E1JennAir OTR Microwave Code FC E1: router connection timed out

F1E1F1E1 questions

Will a breaker reset clear F1E1 for good?

It may clear the display after a power surge, but if the relay board is failing, the code returns. A single reset is safe to try. Repeated resets are a sign to schedule a visit.

Does F1E1 mean I need a new microwave?

Not usually. The relay board is a replaceable part on an over-the-range unit. We confirm the cause, quote the repair in writing, and compare it with replacement cost before you decide.

My friend has F1E1 on a built-in JennAir. Is it the same?

The code shows the same, yet the cause differs by platform. On the over-the-range hood we look at the relay board, while built-in units point to a different control. We always diagnose by model.