KitchenAid Over-the-Range Microwave Code F1E4: main control board problem

What F1E4 means

KitchenAid over-the-range microwave hood combinations, including the KMHS120ESS and KMLS311HSS, display F1E4 when the appliance control board or its wiring may have a problem. This is the main board that runs the keypad, display, fan and heating. The microwave may freeze, ignore commands, or stop heating once F1E4 appears.

Common causes of F1E4

Appliance control board failing
Loose connection between board and harness
Surge that left the board in an error state

✓ One safe check you can try

1. Cancel any program. 2. Unplug the microwave for a full minute, or turn off its breaker. 3. Plug it back in and check the clock. 4. Do not keep restarting if F1E4 returns; call us.

! Why to stop there

Main boards are among the pricier parts, so diagnosis must come first
Wiring problems can look exactly like a bad board
We quote in writing before work and give a 30-day warranty

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 Microwave codes

Probe or Insert ProbeKitchenAid Combination Microwave Message "Probe" or "Insert Probe": Seat the meat probe in its jack PUSH or PSHKitchenAid Built-In Microwave Message PUSH or PSH: The oven is waiting for Start Registration ErrorKitchenAid Over-the-Range Microwave Message "Registration Error": Check the home network and try again Sabbath, Sab, 5Ab, or 5A6KitchenAid Built-In Microwave Display Sabbath, Sab, 5Ab or 5A6: Sabbath Mode is on SEKitchenAid Over-the-Range Microwave Code SE: Keypad or user interface problem F6E0KitchenAid Over-the-Range Microwave Code F6E0: Main appliance control board Flashing 0:00KitchenAid Countertop Microwave Display Flashing 0:00: The clock lost power F4 E3KitchenAid Combination Microwave Code F4 E3: Exhaust air temperature sensor

F1E4F1E4 questions

What sets F1E4 apart from E13?

Both name the appliance control board. They are separate readings and the technician interprets which check tripped.

My display is blank. Is it F1E4?

A blank display is a different sign of power loss, but it can have the same source. We would check the outlet and the board together.

Is a replacement board available?

Usually yes. We confirm availability and the written price before booking the repair.