Midea MGRH10A-PA1Z, Руководство пользователя

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Aqua Mini Full DC Inverter Unitary Chiller 50Hz
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E9 malfunction: EEPROM malfunction
The malfunction may be caused by two reasons:
1) The EEPROM is not inserted well; 2) Outdoor main PCB is broken.
H0 malfunction : Communication malfunction between main chip and IPDU.
LED displays E9
EEPROM malfunction
Check whether EEPROM is installed properly.
Yes
NO
Installed properly again.
Replace main PCB.
LED displays H0
Communication malfunction between main chip and IPDU
Whether the signal wire is connected normally between module board .
Connect wire again.
NO
Judge whether LED on the module board flash normally or not
when powered on.
Replace main PCB.
NO
YES
Replace module board.
YES