U2 - Malfunction of power supply or instantaneous power failure (Outdoor Unit)

Was bedeutet U2 ?

This error code indicates a problem with the power supply to the outdoor unit or a recent, sudden power interruption.

• Unstable power source
• Loose electrical connections
• Internal power component failure

Klicken Sie auf Schritte, um Ihren Fortschritt zu verfolgen.

1. 1

   Turn off the power to the unit at the breaker.

2. 2

   Check all electrical connections to the unit.

3. 3

   Restore power and observe if the error code is resolved.

4. 4

   If the issue continues, contact a qualified technician.