EA - 4-way valve failure

Was bedeutet EA ?

The 4-way valve, which changes the system's operation between heating and cooling, has a defect.

• Defect of the 4-way valve.
• PCB issue.
• Sensor issue.

Klicken Sie auf Schritte, um Ihren Fortschritt zu verfolgen.

1. 1

   Turn off the unit at the breaker for 60 seconds, then restore power.

2. 2

   If the valve doesn't operate correctly or the error persists, it needs professional inspection.

3. 3

   A technician will need to diagnose the valve, PCB, or related sensors.