KitchenAid Oven Error Code F8-E4

F8-E4 means the oven detected an over-temperature condition while the door latch was in the unlocked position. The control board flags this as a safety fault because the latch is expected to engage during high-heat operation. The code points to a problem in the latch assembly, the latch motor, or the switches that monitor door and latch position.

Disconnecting power for a few minutes may temporarily clear the fault display, but the code will return if the underlying latch or switch problem has not been corrected. A reset is useful as a first step to confirm the fault is active and repeatable, but it does not fix the mechanical or electrical issue causing the error.

Repair costs vary depending on which component has failed. A latch assembly or latch motor replacement typically runs between $80 and $200 for parts, with professional labor adding $100 to $250 depending on your area. If only a switch or spring has failed, parts costs are often lower. Getting a diagnostic visit from a qualified technician can help pinpoint the exact component before committing to parts.

You should not attempt to run a self-clean cycle while this fault is active, as the door latch is not functioning correctly and the oven cannot secure the door at high temperatures. Limited low-temperature baking may be possible depending on how the oven responds after a reset, but continued use without diagnosing the root cause risks further component damage and is not recommended.

Start by inspecting the latch assembly for obvious damage: check the pivot joint, the arm-to-motor connection, and both the plunger and hook springs. Then test the latch motor resistance, which should measure approximately 2450 ohms. Check latch switch continuity, the door open/closed switch, and verify that power and element connections are intact and not causing an uncontrolled over-temperature condition.