4-way valve abnormality — Refrigerant flow control issue

What does 4-way valve abnormality mean?

This error points to a problem with the 4-way reversing valve, which controls the flow of refrigerant to switch between heating and cooling modes. A malfunction can prevent proper operation.

• Faulty 4-way valve
• Electrical issue controlling the valve
• Refrigerant flow problem

Click steps to track your progress.

1. 1

   Turn off the air conditioner and check for any error codes on the display.

2. 2

   Power cycle the unit by switching off the power at the circuit breaker for 30 seconds and then turning it back on.

3. 3

   If the system still shows the error, a professional diagnosis by an installer is needed.