Kaisai KMK-60RY1, Руководство по обслуживанию

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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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M thermal Split
202004 69
Procedure 4.12.4
H6 / HH
is blowing towards the fan, making
the fan running in the wrong direction
Yes
Change the outdoor unit’s installation direction or
build a shelter to protect the fan from strong wind
No
DC fan wire is loosed
1
Yes
Reconnect DC fan wire
No
The fan motor is blocked or has failed
Yes
Remove obstruction or replace the fan motor
No
Replace inverter module(single phase model) or
outdoor unit main PCB(three phase model)
Notes:
1. Refer to Figures 4-1.1 to 4-1.4 in Part 4, 1.1 “Outdoor Unit Electric Control Box Layout” and to the Split Engineering Data Book, Part 4 “Wiring Diagrams”.
2. Measure the voltage between the DC fan motor power supply’s white and black wires. The normal voltage is 15V when the unit is in standby. If the
voltage is significantly different from 15V, the IPM module on the inverter module is damaged. DC fan connection are port CN109 on the
KHA-12(14,16)RY3 outdoor unit refrigerant system main PCB (labeled 30 in Figure 4-2.4 in Part 4, 2. 3 "Main PCB for Refrigerant System, Inverter
Module").
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