Midea MHC-V16W/D2RN8-B - H6, HH Troubleshooting

M thermal Mono
68 200204
Midea M thermal Mono Service Manual
4.12 H6, HH Troubleshooting
Digital display output
Description
 H6 indicates a DC fan error.
 HH indicates that H6 protection has occurred 10 times in 2 hours. When an HH error occurs, a manual system restart
is required before the system can resume operation. The cause of an HH error should be addressed promptly in order
to avoid system damage.
 M thermal Mono stops running.
 Error code is displayed on refrigerant system main control board for refrigerant system and user interface.
Possible causes
 Power or communication wires not connected properly.
 High wind speed.
 Fan motor blocked or has failed.
 Power supply abnormal.
 PFC module damaged.
 IPM module damaged.
 Main PCB damaged.
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