Error 180 — Simultaneous opening of cooling/heating MCU SOL V/V (1st detection)

Was bedeutet 180 ?

This error occurs when the cooling and heating solenoid valves within the MCU are detected as being open simultaneously for the first time. This indicates a refrigerant flow conflict.

• Malfunctioning solenoid valve
• Control board fault
• Wiring error to the solenoid valves
• System pressure irregularity

Klicken Sie auf Schritte, um Ihren Fortschritt zu verfolgen.

1. 1

   Power cycle the entire HVAC system by turning off its main circuit breaker for a few minutes.

2. 2

   Restore power and observe the system for normal operation.

3. 3

   If the error reappears, it indicates a persistent issue that needs professional diagnosis.

4. 4

   This often requires a qualified HVAC technician to inspect the solenoid valves and control board.

5. 5

   Avoid running the unit if this error persists, as it can lead to component damage.