Sencor
Mode Reversal / Reversing Valve Malfunction
Unit blows warm air in cooling mode or cold air in heating mode intermittently.
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
Sticking reversing valve, Faulty reversing valve coil, Incorrect control signals from PCB, Low refrigerant charge
How to Fix / Troubleshooting
Safety first: Turn off power before accessing the outdoor unit. Do not tamper with refrigerant piping.
- Step 1 – Confirm mode setting: Ensure the remote or panel is set to the correct mode (COOL or HEAT) and that no AUTO mode confusion is occurring.
- Step 2 – Observe outdoor unit: When switching modes, listen for the reversing valve click. Absence of this sound may indicate a coil or control issue.
- Step 3 – Check coil wiring: Inspect the reversing valve coil wiring and connector for damage or looseness.
- Step 4 – Coil resistance test: With power off, measure coil resistance. Replace the coil if open.
- Step 5 – Professional service: If the valve is mechanically stuck or refrigerant charge is incorrect, a technician must service or replace the valve and adjust charge.
Advertisements
Repair Difficulty
Professional Required
5/5
Required Part
Reversing Valve Coil
Check Price on Amazon
We may earn a commission from links on this page.
Advertisements