Error code C-1159 for Bizhub Press 1250 1250P 1052 Bizhub Pro 951

Code: C-1159
Classification: FS: FS-532 abnormality
Cause:
The bypass gate home sensor (PS36) does not turn ON within a specified period of time after the bypass gate motor (M25) turns ON.
   
Measures to take when alert occurs:
The main body and the option stop immediately.                                                 
Estimated abnormal parts:
  • FNS control board (FNSCB)
  • Bypass gate motor (M25)
  • Bypass gate home sensor (PS36)
Correction:
Turn OFF/ON the sub power switch of the main body.
Note: The message "Please call service" is displayed on the panel.
                      
Solution:
  1. Check the connector connection and the wiring between FNSCB and  motor/sensor, and repair it if any abnormality.
  2. Check the I/O drive of the motor and the coupling of the gear, and repair/replace it if any abnormality. (Wiring diagram: FS-532: 1-F) 
  3. Check I/O and the operation of the sensor, and repair/replace it if any abnormality. (Wiring diagram: FS-532: 2-B) 
  4. Replace PS36.
  5. Replace M25.
  6. Replace FNSCB. 
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