What F27 (Cooling Fan Stalled or Locked During Self Clean) Means
F27 indicates the cooling fan stalled or locked specifically during a self-clean cycle, per LG's range Help Library article - the fan that keeps the range's electronics cool during the high-heat self-clean process.
Common Causes of F27 (Cooling Fan Stalled or Locked During Self Clean)
- Cooling fan motor has stalled or failed
- Fan obstructed by debris
🔧 One Safe Check You Can Try
Turn the circuit breaker for the range off, wait 30 seconds, and turn it back on; do not attempt to restart or force a self-clean cycle again until you've let the oven fully cool down first, since it may still be very hot from the interrupted cycle.
⚠ Why You Shouldn't Go Further Than That
- If F27 recurs, avoid running further self-clean cycles until it's repaired - self-clean relies on that cooling fan to protect the range's control electronics from the cycle's extreme internal heat, and running it again without a working fan risks further damage to the control board.
- Let the oven fully cool on its own timeline before opening the door or attempting any troubleshooting after an interrupted self-clean cycle - the cavity can remain dangerously hot well after the cycle stops.
Opening a panel to inspect or repair something yourself doesn't automatically cancel your manufacturer's warranty — but it can risk accidental damage, and some manufacturers do have specific service conditions. Check your product's warranty terms, or ask us, before deciding.