LG · Air Conditioner error code

E6 / EFFan motor problem

Single source High-voltage / caution

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Related diagnostic guides

Guide · Air Conditioner

AC/heat pump outdoor fan not spinning

On conventional units the usual causes are a failed fan capacitor, a seized motor or a contactor problem. On inverter mini-splits the fan is driven by the board and usually posts a fan error code.

5 steps ~45 minmoderate

Guide · Air Conditioner

Air conditioner running but not cooling enough

Most no-cool calls on room units are airflow, installation or sizing problems, not hardware. Measure the temperature drop across the unit first, then work through filter, coils, air leaks and heat load before suspecting the sealed system.

6 steps ~30 mineasy

Guide · Air Conditioner

PTAC not cooling (fan runs, air not cold)

Most PTAC no-cool calls are airflow (filter, coils), a wrong control setting or a failed compressor start component. Rule those out before suspecting the sealed system.

6 steps ~60 minmoderate

More LG air conditioner codes

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CH 10

Indoor fan motor error

Cross-checked High-voltage / caution

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CH 38

Low refrigerant / low pressure

Single source Licensed pro only

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CH 61

Condenser / heat exchanger overheat

Single source High-voltage / caution

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CH 67

Outdoor fan motor locked

Cross-checked High-voltage / caution

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CH01 / CH02 / CH06

Temperature/pipe sensor fault

Cross-checked

LG · Air Conditioner

CH04 (FL)

Water level full

Single source