Code: C-1438
Classification: RU: RU-509 abnormality
Cause:
Communication errors in RU.
Measures to take when alert occurs:
The main body and the option stop immediately.
Estimated abnormal parts:
- Software bug
Note:
- The message "Please call service" is displayed on the panel.
Solution:
- Deactivate the sub power switch and unplug the power plug. Restart the main body after 10 seconds.
- Check the connector connection and the wiring of RUCB, and repair it when there is any abnormality.
- Reinstall the RU firmware
- Replace RUCB.