M thermal Split
202004 65
4.10 H0 Troubleshooting
Digital display output 4.10.1
Description 4.10.2
Communication error between outdoor unit and hydronic box.
M thermal Split stops running.
Error code is displayed on hydronic box main PCB, outdoor unit main PCB and user interface.
Possible causes 4.10.3
Power supply abnormal.
Transformer malfunction.
Interference from a source of electromagnetic radiation.
Outdoor unit main PCB or hydronic box main PCB damaged.
Midea CAC