Midea M5OF-48HFN1-M - Outdoor Unit Trouble Shooting; E0 (Outdoor Unit EEPROM Parameter Error) Diagnosis and Solution

55
7.4.2 Outdoor unit trouble shooting
7.4.2.1 E0 (Outdoor unit EEPROM parameter error) diagnosis and solution
Error Code
E0
Malfunction
conditions
PCB main chip does not receive feedback from EEPROM chip
Potential causes
● Installation mistake
● Faulty PCB
Trouble shooting:
Yes
Replace the outdoor main
PCB
Replace the outdoor main
PCB
Power off, then restart the
unit 3 minutes later
Power off, then restart the
unit 3 minutes later
Outdoor EEPROM malfunction
Outdoor EEPROM malfunction
EEPROM: a type of read-only memory. The contents can be erased and reprogrammed using a pulsed
voltage.
refer to the following photos.