Kaisai KMK-60RY1, Service Manual

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4.7 EE Troubleshooting
Digital display output 4.7.1
Description 4.7.2

Hydronic box main PCB EEPROM error.

Split stops running.

Error code is displayed on hydronic box main PCB and user
interface.
Possible causes 4.7.3

Hydronic box main PCB EEPROM is not connected properly.

Hydronic box main PCB damaged.
Procedure 4.7.4
EE
Hydronic box main PCB EEPROM
1
is not
connected properly
Yes
Ensure the EEPROM is connected
properly
No
Replace hydronic box main PCB
Notes:
1. Hydronic box main PCB EEPROM is designated IC39 on the main PCB for hydronic box (labeled 31 in Figure 4-2.1 in Part4, 2.2 "Main PCB for Hydronic
System").
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4.8 F1 Troubleshooting
Digital display output 4.8.1
Description 4.8.2

Low DC generatrix voltage.

Split stops running.

Error code is displayed on hydronic system main PCB and user
interface.
Possible causes 4.8.3

The DC generatrix voltage is too low.
Procedure 4.8.4
F1
Power supply is abnormal.
Yes
Provide normal power
No
LED on the Inverter
Modules is lighting
Yes
Voltage of PN is 380V.
Yes
Check the main board.
No
The input power of
inverter module is
abnormal
Yes
The main board is
damaged, change it.
No
The invert module is
damaged, change it.
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