LG · Range / Oven error code

F-27Cooling fan stalled during self-clean

Cross-checked High-voltage / caution

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Related diagnostic guides

Guide · Range / Oven

Oven fan noisy (convection or cooling fan)

Convection fan noise is usually worn motor bearings or a loose/warped blade. Note that many ovens run a cooling fan after cooking ends; that is normal. A grinding noise during self-clean start can be the door lock motor rather than a fan.

4 steps ~60 minmoderate

Guide · Range / Oven

Oven door stuck locked after self-clean

The lock stays engaged until the cavity cools (most models release below about 550°F). If it stays locked when cold, the lock motor, its position switch or the control is at fault. Dead ovens after self-clean often have an open thermal fuse.

5 steps ~60 minmoderate

Component test · Range / Oven

Oven door lock motor and lock switches (self-clean)

Self-clean ovens use a small motor or solenoid with cam switches that tell the control the lock position. A lock stuck after self-clean is often a cooled-down timing issue; check the motor, the switches and the control output.

5 steps ~40 minmoderate

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