CH67

LG CH67 Error Code – Heat Outdoor BLDC fan motor lock error.

Air Conditioner · CRITICAL Severity

CRITICAL severity Air Conditioner Model: LG LS091HSV Outdoor Unit

What This Error Means

The outdoor motor is faulty and needs to be replaced."

Diagnostic & Repair Steps

Inspect Fan for Obstructions
Visually check the fan blades for any physical obstructions (debris, ice, damaged blades) that may be causing the lock condition. 🔧 Flashlight ⚠️ Disconnect power before inspecting fan

INSPECT ~10 min

Manually Rotate Fan
With power off, attempt to manually spin the fan blades. Fan should rotate freely. If stiff or stuck, motor bearings may have failed. 🔧 None ⚠️ Ensure power is completely off before touching fan

CHECK ~5 min

Check Fan Motor Wiring
Inspect all wiring connections to the fan motor. Check for loose connectors, damaged wires, or corrosion on terminals. 🔧 Multimeter, screwdrivers

CHECK ~10 min

Measure Fan Motor Resistance
Disconnect fan motor connector. Measure winding resistance across motor terminals. Compare to service manual specifications. Open or shorted windings indicate motor failure. 🔧 Digital multimeter ⚠️ Disconnect power before measuring

TEST ~15 min

Replace Fan Motor
If motor windings are faulty or motor is mechanically seized, replace the fan motor with the correct replacement part for the model. 🔧 Screwdrivers, spanner ⚠️ Ensure power is off and capacitors are discharged before replacing motor

REPLACE ~30 min

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