KitchenAid Combination Oven Code F1 E2: microwave user interface

What F1 E2 means

On KitchenAid combination microwave-wall ovens, such as the KOCE507ESS and KOCE900HSS, F1 E2 concerns the microwave side, the upper cavity. There may be a problem with the microwave user interface or the associated wiring. The keys and display for the microwave are in question, so you may find the microwave controls dead while the lower oven behaves. On a combination unit, the lower oven often stays usable while the microwave keys do not respond.

Common causes of F1 E2

Microwave user interface failing
Communication wiring to the interface damaged
Control not receiving key input

✓ One safe check you can try

1. Wipe the microwave keypad dry and press Cancel. 2. Switch the unit's breaker off for one minute and on again. 3. Try the microwave keys, then a short run with a cup of water. 4. If F1 E2 returns, stop using the microwave side and book service.

! Why to stop there

Microwave cavities contain a high-voltage section that stays charged after power is off.
The interface is built into the door or control panel.
We test it safely.

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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F1 E2F1 E2 questions

Can I still use the lower oven?

Often yes, but the control shares power with the microwave. If anything else misbehaves, stop using both until checked. It might be, but the microwave shares power with the rest of the unit, so treat both as unreliable if anything else acts odd.

Why is it a microwave code and not an oven code?

On a combination unit the upper microwave and the lower oven have their own boards and interfaces, and the code names the microwave one. The display can serve both cavities, yet each side has its own interface board.

What do you offer?

A written price before work and a 30-day warranty. Microwave interface work needs power-off and discharge steps, and we follow them carefully on every visit, whatever the model.