Written by
Maren Coleman Appliance Care EditorPublished October 29, 2026
VERIFIED
Error codeF6
ApplianceMicrowave
What a failed function means
With F6 on the display, the oven was unable to execute the function you asked for. Whirlpool’s manual lists the Relay Control Board, or the wiring tied to it, as the suspect.
Reset checklist
Breaker off, one minute (or unplug the unit).
Breaker on.
Stand by for one minute to see if F6 comes back.
Confirm the microwave operates normally.
The steps are written for over-the-range Whirlpool microwaves.
F7: also reads as an Appliance Control Board fault.
F9: lists the Appliance and Relay Control Boards together.
Whirlpool microwave repair, San Francisco
A repeat F6 calls for a technician. In San Francisco, contact Whirlpool microwave repair at (415) 687-4102, with the model number and a note on the power reset ready.
Model compatibility: Whirlpool reuses codes across series and model years, so F6 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
F6 means the oven could not execute the function; the Relay Control Board or its wiring may be at fault.
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 Whirlpool appliance?
Book a specialist visit for a clear estimate and approval before any repair.
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You submit a request with your appliance model and symptom, we confirm an appointment window, and a technician performs an on-site diagnosis. You then receive a clear estimate and decide whether to proceed before any repair begins.
Yes. We provide an upfront estimate after diagnosis. No parts are ordered or installed until you approve the work, so there are no surprise charges.
Replacement parts are selected for the exact model and confirmed with you before ordering or installation.
Service areas are listed on the Locations page. Contact us with your ZIP code to confirm current coverage for your address.
Ready to get your Whirlpool appliance working again?
Book a repair online or call us — clear estimates and approval before any repair work begins.
