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8.4.2 Outdoor unit trouble shooting

8.4.2.1 E0 (Outdoor unit EEPROM parameter error) diagnosis and solution

Error Code

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

EEPROM: a type of read-only memory. The contents can be erased and reprogrammed using a pulsed

voltage.

refer to the following photos.

Midea MCH3U-27PHH2 User Manual

Questions and Answers: