Midea MHC-96HWD1N1(A) Service Manual page 43

MCAC-UTSM-201503

E8: Outdoor unit address is wrong
E8: Outdoor unit address is wrong

The ODU's address is more than 3 or

be set repeatedly

No
Main board is disabled

E9: Eeprom error

H0: Communication error between main control chip and module chip;
H1: Communication error between main control chip and communication chip
Power supply
transformer 1 and transformer 2
terminals are abnormal
The transformer on main control
board is disabled
There
interference nearby the unit. Such
as High-frequency transmitter or
other high strength radiation device
Outdoor main control board is
damaged
H0/H1
for main PCB,
No
No
has electromagnetic
No
R410A Full DC Inverter Split Duct Type Technical Manual
Yes
Ye
Provide normal power supply
s
Ye
Replace the transformer
s
Ye
Remove the interference
s
Ye
Replace the outdoor main control
s
board
The addresses should be set less
than 3 and differently
No
Replace main board
42