Code: C-1356
Classification: RU: RU-509 abnormality
Cause:
An error detection signal of FM6 is detected continuously for a specified period of time while the humidification section paper fan/1 (FM6) is ON.
Measures to take when alert occurs:
The main body and the option stop immediately.
Estimated abnormal parts:
- Humidification section paper fan/1 (FM6)
- HM drive board (HMDB)
- RU control board (RUCB)
Turn OFF/ON the sub power switch (SW2) on the main body when releasing an abnormal condition.
Note:
- The message "Please call service" is displayed on the panel.
Solution:
- Check the connector connection and the wiring between HMDB and the fan, and repair it if any abnormality.
- Check the connector connection and the wiring between HMDB and RUCB, and repair it if any abnormality.
- Rotate the fan or I/O by hand, and repair it if any abnormality. (Wiring diagram: RU-509: 19-O).
- Replace FM6.
- Replace HMDB.
- Replace RUCB.