Error 400 — Overheat due to contact failure on IPM of Inverter PBA2

Was bedeutet 400 ?

The outdoor unit's Inverter PBA2 has an IPM (Intelligent Power Module) that is overheating, likely due to a contact failure. This is a critical fault.

• Contact failure within the IPM
• Poor heat dissipation
• Faulty Inverter PBA2

Klicken Sie auf Schritte, um Ihren Fortschritt zu verfolgen.

1. 1

   Ensure the outdoor unit's heat dissipation pathways are clear of obstructions.

2. 2

   Check the connections to the Inverter PBA2.

3. 3

   This error indicates a serious internal fault requiring immediate attention from a qualified technician.

4. 4

   Do not attempt to operate the unit until repaired.