F1E4 names a second part next to the microwave appliance manager: the microwave power relay.
Model compatibility: KitchenAid reuses codes across series and model years, so F1E4 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
The microwave appliance manager, the microwave power relay or the wiring may have a problem.
Ovens with a built-in microwave are the ones that show F1E4. KitchenAid says the cause may be the Microwave Appliance Manager, the Microwave Power Relay, or the associated wiring.
What sets it apart from F1E3
F1E3 and F6E7 mention just the microwave appliance manager and its wiring. F1E4 lists one more part, the microwave power relay. As general background, a relay is an electrically operated switch, so a power relay here would switch power to the microwave function. KitchenAid does not say more than the name.
The one step KitchenAid gives
Cut power at the breaker and keep it off for one minute.
Restore power.
Watch the oven for about a minute to see that F1E4 stays away.
Check that the oven operates.
Outcomes
What happens
What it means
F1E4 does not come back
KitchenAid asks nothing more of you
F1E4 comes back
No owner steps are published, so the next move is service
Nothing in the article lets an owner test or swap a manager or a relay. Electrical switching parts are technician territory.
A closer look at the wording
The entry reads “Microwave Appliance Manager or Microwave Power Relay”. The “or” tells you that KitchenAid lists candidates and has not singled out a part. Narrowing it down would fall to a technician, and the article does not describe how.
Codes close to this one
F1E3 / F6E7: the microwave appliance manager, with no relay mentioned.
F1E5: the microwave inverter or the magnetron tube.
KitchenAid oven relay and control repair in Los Angeles
If F1E4 persists, contact us on (310) 363-8964 about your KitchenAid wall oven in Los Angeles. It helps to have the code, a note that a microwave is built in, and the model number at hand. See also the oven repair page.
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 KitchenAid appliance?
Book a specialist visit for a clear estimate and approval before any repair.
