Error code C-0366 for Bizhub Press 1250 1250P 1052 Bizhub Pro 951

Code: C-0366
Classification: PF: Fan abnormality


3rd tandem PF-703 cooling fan power abnormality.
The EM error detection signals of the FM19 and the FM20 are detected twice in succession within a period of time after the PF cooling fan /1 (FM19) and the PF cooling fan /2 (FM20) were activated. At this time, an error detection signal (blowout of ICP) is also detected.

Measures to take when alert occurs:
The main body and the option stop immediately.

Estimated abnormal parts:

  • PF cooling fan /1 (FM19: PF-703)
  • PF cooling fan /2 (FM20: PF-703)
  • PF drive board (PFUDB)

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.


  1. Check the connector connection and the wiring between PFUDB and the fan, and repair it if any abnormality.
  2. Rotate the fan with I/O or by hand, and repair or replace it if there is any abnormality. (Wiring diagram: PF-703: 22-F, 23-F).
  3. Replace FM19 and FM20 and PFUDB at a time.
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