LG · Oven Moderate
F7 — Upper convection fan error
The control cannot detect the upper convection fan running for more than one minute during a convection cycle. The fan tach feedback is missing or the fan is mechanically locked.
- Keep using it?
- Yes, with caution
- DIY difficulty
- Moderate
- Verified against
- lg.com ↗
How to fix it
- Press CLEAR/OFF and try a non-convection bake to confirm bake itself is OK.
- Power down at the breaker.
- Remove the rear convection cover inside the cavity and spin the fan by hand — it should turn freely with no scrape.
- Tighten the blade hub if it is loose; replace the blade if it is bent.
- Pull the rear access panel and check the fan motor connector. Measure motor winding resistance against the service-manual spec.
- Replace the convection fan motor if it is open or seized.
- If the motor and wiring check out, replace the main control board.
Why it happens
Typical signs: F7 or F-7 on display · Convection bake/roast cancels · Audible scraping or no fan sound from rear of cavity · Standard bake may still work
- Seized or failed convection fan motor Worn bearings or burned winding — motor will not spin or draws no current.
- Loose fan blade hitting the shroud Hub set screw backed off and the blade is binding.
- Wiring or connector failure to the fan Harness in the back wall opened from heat cycling.
- Failed fan relay on the main control board Board commands the fan on but the relay never closes.
Parts you may need
If diagnosis points to a failed part, these are the common replacements. As an Amazon Associate we earn from qualifying purchases.
More LG oven codes
Always unplug an appliance before servicing it. This guide is for informational purposes and is not a substitute for a qualified technician. Verified against manufacturer documentation: lg.com.