TCL
Reversing Valve Failure (Heat Pump Models)
Unit blows air but temperature does not change between modes
Advertisements
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.
Advertisements
Possible Causes
Stuck 4-way reversing valve on TCL outdoor unit, Faulty reversing valve coil, Incorrect control signal from PCB, Low refrigerant charge
How to Fix / Troubleshooting
Safety first: Turn OFF power before inspecting the outdoor unit.
- Step 1 – Mode test: Switch between COOL and HEAT and listen for a distinct change in refrigerant flow sound. Lack of change suggests valve issues.
- Step 2 – Check coil: A technician should verify that the reversing valve coil is energizing in the correct mode and replace it if open or shorted.
- Step 3 – Valve replacement: If the valve is mechanically stuck, it must be replaced by a qualified technician, which involves refrigerant recovery and brazing.
Warning: Reversing valve replacement is not a DIY task due to refrigerant handling and brazing requirements.
Advertisements
Repair Difficulty
Professional Required
5/5
Required Part
4-Way Reversing Valve
Check Price on Amazon
We may earn a commission from links on this page.
Advertisements