Error code C-0325 for Bizhub Press 1250 1250P 1052 Bizhub Pro 951

Code: C-0325
Classification: Main body: Fan abnormality
Paper feed assist fan /Fr1 (FM21) rotation abnormality.
The FM21 EM error detection signal is detected twice in succession within a specified period of time after FM21 was turned ON. However, error detection signal (24V cut off) is not detected. 
Measures to take when alert occurs:                                                            
The main body and the option stop immediately. 
Estimated abnormal parts:
  • Paper feed assist fan /Fr1 (FM21)
  • Printer control board (PRCB)
Turn OFF/ON the power switch (SW2) of the main body when releasing an abnormal condition.                                                                                                 
Note:  The message "Please call service" is displayed on the panel.                                         
  1. Check the connector connection and the wiring between PRCB and the fan, and repair it if any abnormality.
  2. Rotate the fan or I/O by hand, and repair it if abnormality. (Wiring diagram: Main body (2/4): 18-A).
  3. Replace FM21
  4. Replace PRCB.
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