H12 - Indoor and outdoor capacity mismatch

Was bedeutet H12 ?

The system has detected that the indoor and outdoor units are not correctly matched for capacity. This can lead to inefficient operation or system failure.

• Incorrect indoor/outdoor unit combination
• Indoor/outdoor connection wire issue
• Indoor/outdoor PCB fault

Klicken Sie auf Schritte, um Ihren Fortschritt zu verfolgen.

1. 1

   Check the specification and combination table in the catalogue for correct unit matching.

2. 2

   Verify the indoor and outdoor connection wires are securely connected.

3. 3

   Inspect the indoor and outdoor PCBs for any visible damage or loose connections.

4. 4

   Contact a qualified installer or service technician if the issue persists.