Kaisai KMK-60RY1, Service Manual

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M thermal Split
68 202004
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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 HH error occurs, a manual system restart
is required before the system can resume operation. The cause of HH error should be addressed promptly in order
to avoid system damage.

Split stops running.

Error code is displayed on outdoor unit main PCB and user interface.
Possible causes 4.12.3

DC fan wire is loosed.

High wind speed.

Fan motor blocked or has failed.

Invert module damaged.

Main PCB is damaged.
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