Indoor unit displays CH60 and heating performance is poor or stopped (heat pump models).
Safety Warning
This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.
If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.
Possible Causes
How to Fix / Troubleshooting
Safety: Turn off power before touching the outdoor unit. Ice can be sharp and components may be hot.
Steps:
- Inspect outdoor coil: Check for heavy ice buildup. If the coil is completely encased in ice, turn the system off to allow natural thawing.
- Clean coil: After thawing, gently clean the coil fins to improve airflow.
- Check defrost sensor: Locate the thermistor on the outdoor coil used for defrost. Ensure it is firmly attached and wiring is intact.
- Power reset: After cleaning and inspection, power off for 10 minutes, then on, and test heating.
Technician tasks: If CH60 persists, a technician should test the defrost sensor, verify defrost cycle operation, and replace the sensor or outdoor PCB as needed.
Repair Difficulty
Required Part
We may earn a commission from links on this page.