SC6xx: Communication
D0CA/D0C9/D0C8/D0CB 6-66 SM
No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
SC672-12 D Controller Start Up Error
Communication with controller was interrupted after a normal startup.
• Controller stalled
• Board installed incorrectly
• Controller Board defective
• Operation panel connector loose, broken or defective
• Controller late
1. Turn the main switch OFF and ON.
2. Check the control panel harness.
3. Check the connection of the Controller Board (PCB24).
4. Replace the Controller Board (PCB24).
No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
SC672-13 D Controller Start Up Error
The operation panel detects that the controller is down due to other reason
shown in SC672-00, SC672-10, SC672-11, and SC672-12.
• Controller stalled
• Board installed incorrectly
• Controller Board defective
• Operation panel connector loose, broken or defective
• Controller late
1. Turn the main switch OFF and ON.
2. Check the control panel harness.
3. Check the connection of the Controller Board (PCB24).
4. Replace the Controller Board (PCB24).
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