Fault code 48 — The outdoor DC fan motor fault (upper fan motor)

What does 48 mean?

The outdoor DC fan motor (specifically the upper one) has a fault. This could be due to loose connections, damaged wiring, a faulty motor, a faulty drive circuit, or a blocked fan.

• Fan motor connections loose
• Fan motor wiring damaged
• The upper DC fan motor fails
• The drive circuit of the upper DC fan motor fails
• The outdoor fan has been blocked

Click steps to track your progress.

1. 1

   Reconnect the wiring of the upper DC fan motor.

2. 2

   Inspect the fan for any blockages and ensure it can rotate freely.

3. 3

   Repair or replace damaged wiring.

4. 4

   If the wiring and fan are okay, replace the upper DC fan motor or the Main PCB.