Error code C-0501 for Bizhub Press 1250 1250P 1052 Bizhub Pro 951

Code: C-0501
Classification: PF: PF power source abnormality
Cause:
1st tandem PF-703 paper leading edge separation fan /Fr1 (FM3) power abnormality.
The FM3EM error detection signal is detected twice in succession within a specified period of time after FM3 was turned ON. At this time, an error detection signal (blowout of ICP) is detected. 
  
Measures to take when alert occurs:

The main body and the option stop immediately.                                                 

Estimated abnormal parts:

  • Paper leading edge separation fan /Fr1 (FM3: Pf-703)
  • PF drive board (PFUDB: PF-703)

Correction:

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.
                      
Solution:
  1. Check the connector connection and the wiring between PFUDB and the fan, and repair it if any abnormality. 
  2. Rotate the fan or I/O by hand, and repair it if any abnormality. (Wiring diagram: PF-703: 6-F).
  3. Replace FM3 and PFUDB.                                                                                                                                               
                                                        
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