Midea MCH4U-36PHH2

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8.4 Diagnosis and Solution
8.4.1 Indoor unit trouble shooting
8.4.1.1
Indoor unit EEPROM parameter error
diagnosis and solution.
Malfunction conditions
Indoor or outdoor PCB main chip does not receive feedback
from EEPROM chip.
Potential causes
●
Installation mistake
●
Faulty PCB
Trouble shooting:
Yes
Replace the indoor/outdoor
main PCB.
Power off, then restart the
unit 3 minutes later. Does
a problem still remain?
EEPROM: a type of read-only memory. The contents can be erased and reprogrammed using a pulsed
voltage. To locate the EEPROM chip,.