The “Heat Wave” Problem
The CH 06 Error points to the Outdoor Pipe Thermistor. This sensor is attached to the copper condenser coils in your outdoor unit. Its job is to monitor how hot the refrigerant is getting as it dumps heat outside.
Why it fails: Being outside, this sensor is exposed to rain, sun, and dust. Over time, moisture penetrates the sensor head, or corrosion eats away at the wire connections, causing the resistance reading to drift or fail completely.
1 DIY Visual Checks
Moisture Damage
Inspect the outdoor unit wiring. If the sensor wire insulation is cracked or the connector is wet, the sensor has likely shorted out.
Physical Damage
During installation or cleaning, the thin sensor wire can get pinched or cut. Check for any physical breaks in the wire leading to the coil.
Connector Corrosion
Open the top cover of the outdoor unit. Check the sensor plug on the PCB. Green or white powder (corrosion) on the pins will stop the signal.
Atlas Aircon Repair Protocol
How we fix the CH 06 Fault:
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01.
Resistance Check (Ohms) We test the sensor. LG Outdoor **Pipe** sensors are typically **5k Ohms** at 25°C. If it reads infinity (Open) or very low (Short), it’s dead.
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02.
Sensor Replacement We replace the faulty sensor with a genuine LG Outdoor Sensor assembly. We ensure the new sensor is inserted securely into the copper holder.
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03.
Corrosion Protection We apply a protective spray or tape to the new connector to prevent moisture from causing the same error again in the future.
Estimated Repair Cost (Atlas Aircon)