MCAC-UTSM-201503 R410A Full DC Inverter Split Duct Type Technical Manual
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E8: Outdoor unit address is wrong
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 for main PCB,
transformer 1 and transformer 2
terminals are abnormal
The transformer on main control
board is disabled
There has electromagnetic
interference nearby the unit. Such
as High-frequency transmitter or
other high strength radiation device
Provide normal power supply
Outdoor main control board is
damaged
Replace the outdoor main control
board
E8: Outdoor unit address is wrong
The ODU's address is more than 3 or
be set repeatedly
The addresses should be set less
than 3 and differently