Code: C-0685
Classification: PF: Heater high temperature abnormality
Cause:
3rd tandem PF-703 dehumidification heater /1 (HTR1) high temperature hardware abnormality.
After the power becomes active, the temperature sensor/5 (TEMS5) detects a heater abnormality signal.
Measures to take when alert occurs:
The main body and the option stop immediately.
Estimated abnormal parts:
- Upper tray fan heater (HT-505)
- AC drive board /2 (ACDB/2: HT-505)
- PF drive board (PFUDB- PF-703)
Correction:
Turn OFF/ON the power switch (SW2) of the main body when releasing an abnormal condition.
Note: "Please call service" is displayed on the touch panel.
Solution:
- Check the connector connection and the wiring between PFUDB and the fan heater, and repair it if any abnormality.
- Check the connector connection and the wiring between PFUDB and ACDB/2, and repair it if any abnormality.
- Check the temperature and the installation of the fan heater, and repair it if any abnormality.
- Replace the fan heater.
- Replace ACDB/2.
- Replace PFUDB.