What F17 (Convection Fan Error) Means
F17 indicates a Convection Fan Error, per LG's range Help Library article, listed separately from F7's Upper Convection Fan Error - possibly covering a different fan position or a different fault condition within the same convection system, since LG's consumer-facing text doesn't specify the distinction further.
Common Causes of F17 (Convection Fan Error)
- Convection fan motor fault
- Fan obstruction from debris or bakeware
🔧 One Safe Check You Can Try
Press the CLEAR/OFF key and try the original function again; if it reappears, cycle the circuit breaker for 30 seconds before trying once more.
⚠ Why You Shouldn't Go Further Than That
- As with F7, using standard (non-convection) bake settings is a reasonable workaround while waiting for service, avoiding convection modes until the fan fault is repaired.
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.

