Power Module Commnication Failure - Haier MRV 5 Series Troubleshooting Manual

Power module communication failure
Central controller display
BMS display
Digital tube indication
on master unit
Indication on
wired controller (hex)
Indoor PCB LED
145
20
YCZ-A004
20
HCM-05
20
HCM-01A
2E
YR-E17
Flash 20 times