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[ IX Troubleshooting ]
- 230 -
HWE09080 GB
[2] Responding to Error Display on the Remote Controller
1. Error Code
Serial communication error
2. Error definition and error detection method
Serial communication error between the control board and the INV board on the compressor.
Detail code 01: Between the control board and the INV board
3. Cause, check method and remedy
(1) Faulty wiring
Check the following wiring connections.
1) Between Control board and Fan board
2) Between Control board and INV board
(2) INV board failure and Control board failure
Replace the INV board or the Fan board when the power turns on automatically, even if the power source is reset.
Refer to section -6- "Inverter" under part [4] Troubleshooting Principal Parts for error codes related to the inverter.
0403
CN2
CN21
CN4
CN4
CN332
CN18V
Control board FAN board
CN2 CN2
CN4 CN4
Control board INV board