Error 400 — Overheat caused by contact failure on IPM of Inverter PBA2

Was bedeutet 400 ?

Overheating has been detected on the Inverter Power Module (IPM) of Inverter PBA2, most likely caused by a poor electrical contact. This is a safety shutdown to prevent damage to the inverter.

• Loose electrical connections to the IPM
• Faulty IPM (Inverter Power Module)
• Inadequate cooling or airflow around the IPM
• Dirt or corrosion on contact points

Klicken Sie auf Schritte, um Ihren Fortschritt zu verfolgen.

1. 1

   Immediately turn off the outdoor unit's power at the circuit breaker.

2. 2

   Allow the unit to cool down completely for at least 30 minutes.

3. 3

   CAUTION: This requires a professional. Inspect the connections to the Inverter PBA2's IPM for any signs of loose contacts or corrosion.

4. 4

   Ensure proper ventilation around the outdoor unit and that airflow isn't restricted.

5. 5

   If the error persists, the IPM or Inverter PBA2 may need replacement by a qualified HVAC technician.