SC Tables
SM Appendix 3-51 D023/D025
Appendix
Service Call
Conditions
No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
Engine start up error
The ready signal from the engine board is not detected.
Defective engine board.
670
CTL
D
Replace the engine board.
Engine board mismatch error
Engine board and controller mismatch detected.
Wrong engine board installed.
Wrong controller board installed.
Check the type of engine board and controller board.
671
CTL
D
1. Replace the BICU.
2. Replace the controller board.
No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
Controller-to-operation panel communication error at startup
After powering on the machine, the communication circuit between the
controller and the operation panel is not opened, or communication with
controller is interrupted after a normal startup.
Controller stall
Controller board installed incorrectly
Controller board defective
Operation panel connector loose or defective
672
CTL
D
1. Check the harness connection.
2. Replace the controller board.
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