Electrolux wall ovens display F-prefixed codes — F3, F9, F10, F13 and others — that come from the electronic oven control board monitoring its own systems and reporting when something falls outside expected limits. Unlike a vague “oven not working” description, these codes narrow the problem down to a specific system, which is genuinely useful information as long as you read it correctly and understand what each one is actually telling you about how safe the oven is to keep using while you wait for a repair.
F3: Temperature Sensor Circuit
F3 points at a problem with the oven’s temperature sensor or the wiring connecting it to the control board — the part responsible for telling the oven how hot it actually is inside. This is worth taking seriously rather than continuing to bake as usual, since a failed sensor circuit means the displayed temperature may not reflect the real interior temperature, which affects both your cooking results and, at the extreme, the oven’s ability to manage its own safety limits correctly.
F9 and F90: Door Lock Issues
F9 and F90 relate to the door lock system, typically appearing in connection with the self-clean cycle, which relies on the lock engaging correctly to keep the door sealed at very high interior temperatures. If either code appears, especially during or after a self-clean attempt, avoid running self-clean again until it has been checked, since the lock not engaging correctly during that cycle is a genuine safety concern rather than a minor inconvenience.
F10: Over-Temperature Safety Trip
F10 indicates the oven has detected an interior temperature higher than it should be reaching for the current setting, and the control board has responded by cutting power as a protective measure. This code should not be cleared and ignored — an oven that has tripped this safety once is worth having checked before it is used for baking again, since the underlying cause, often a relay or temperature sensor issue, does not resolve itself.
F13: Control Board Processor Error
F13 points at the control board’s own internal processor rather than a sensor or mechanical part. Power-cycling the oven — turning it off at the breaker for a few minutes and back on — sometimes clears a one-time processor glitch, but if F13 returns after that, the board itself has likely failed and needs replacement.
Other F-Codes You May Encounter
Electrolux documents additional codes beyond these four for its wall oven platform, covering things like specific relay failures and other sensor circuits, and the full list varies somewhat by model generation. The pattern across all of them is the same: a number after the F identifies a specific system, and reading it against documentation for your particular model rather than assuming it matches what a different oven generation uses is what keeps the diagnosis accurate.
Whatever code you see, write it down exactly and note when it appears — during preheat, during self-clean, or at random — before contacting a technician. Browse more wall oven repair topics, check the error code guide, or contact us with the exact code and your model number.