Written by
Maya Chen Editorial TeamPublished October 20, 2026
Error codeF45
ApplianceRange
Quick answer
LG lists F45 as a fan error. The manual asks for a circuit breaker reset of 30 seconds.
Model compatibility: LG reuses codes across series and model years, so F45 may mean something different on another appliance or generation. Confirm this against your model’s documentation and record your full model number before acting.
Plain language
What this code means
F45 means a fan error on LG ranges and ovens.
Models covered
LG ranges show F45 to report a fan error. LG gives one entry for the range and oven family without limiting it to a named generation.
Owner steps
Reset by breaker: off, wait 30 seconds, on again.
No change after the reset? The manual then calls for service.
For a main board and inverter communication error, see F38.
LG range service in Los Angeles
If the reset does not hold, (310) 742-8008 reaches us for LG range service in Los Angeles. Read about LG range repair first if you like, and note the model number and the code F45.
Important safety warning. Do not attempt repairs involving electrical components, gas, water lines, refrigerant or sealed systems. Unplug the appliance if it is safe to reach the outlet, and leave internal diagnostics to a qualified technician.
Seeing this code on your LG appliance?
Book a specialist visit for a clear estimate and approval before any repair.
