Midea MHC-V16W/D2RN8-B - H7 Troubleshooting

M thermal Mono
70 200204
Midea M thermal Mono Service Manual
4.13 H7 Troubleshooting
Digital display output
Description
 Abnormal main circuit voltage.
 M thermal Mono stops running.
 Error code is displayed on refrigerant system main control board for refrigerant system and user interface.
Possible causes
 Power supply voltage not within ±10% of rated voltage or a phase is missing.
 Outdoor unit powered on immediately after being powered off.
 Loosened wiring within electric control box.
 High voltage circuit error.
 Main PCB damaged.
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