Kaisai 06RY1, Service Manual

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M thermal Mono
68 200208
Midea
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4.12 H6, HH Troubleshooting
Digital display output 4.12.1
Description 4.12.2

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.

Mono stops running.

Error code is displayed on refrigerant system main control board for refrigerant system and user interface.
Possible causes 4.12.3

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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