Measures to take when alert occurs:
- Paper cooling fan motor /1 (FM2)
- LS control board (LSCB)
- The message "Please call service" is displayed on the panel.
Solution:
- Check the connector connection and the wiring between LSCB and the fan, and repair it if any abnormality.
- Rotate the fan or I/O by hand, and repair and replace it if an abnormality is found. (Wiring diagram: LS-505: 6-H, LS-506: 5-H).
- Replace FM2 or FM6.
- Replace LSCB.
