Possible Causes:
PT/CT board failure There is no input from the PT/CT board (Due to burnout of PT transformer temperature fuse)
Trouble Shooting:
F315 Unit stopped
PT/CT board failure There is no input from the PT/CT board (Due to burnout of PT transformer temperature fuse)
Trouble Shooting:
- Check connectors CN45-1 and CN45-2 for securing and disconnecting on CPU board, and CN1 and CN2 on PT/CT board
- Check open circuit from 10 to 11 on PT/CT board (EC5)
- Replace PT/CT board if connector and wiring is normal
F315 Unit stopped
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