LG · Range / Oven error code

F-11Board communication error

Cross-checked High-voltage / caution

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Related diagnostic guides

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

Guide · Range / Oven

Oven clock blank after power outage

Breaker, fuse or board.

2 steps ~15 mineasy

Guide · Range / Oven

Convection fan not running

Check the blade spins freely, then the motor winding, then whether the control sends 120 V. Bake and broil still work without the fan, so customers often notice only uneven results.

4 steps ~60 minmoderate

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6 (cooktop)

Low voltage

Single source High-voltage / caution

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CF1-CF4

Top zone sensor open/short

Cross-checked High-voltage / caution

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CF5 / CF6

IGBT sensor

Single source High-voltage / caution

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CF7 / CF8

Module communication

Single source High-voltage / caution