Error Code: C-5403 Follow

Classification
Main body: Fan abnormality

Cause
When the image processing cooling fan (FM1) is active, an error detection signal of FM1 is detected continuously for a specified period of time.
An error detection signal is detected continuously while you retry power feed several times. Alternatively, when the FM1 is rotating at a low
speed, an abnormality is detected continuously for a specified period of time.

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

Estimated abnormal parts
• Image processing board (IPB)
• Image processing cooling fan (FM1)
 

Solution
1. Rotate FM1 by hand or the IO Check (42-18), and repair or replace it when there is any abnormality. (Wiring diagram: Main body (3/5): 18-J)
2. Check the connector connection between IPB and FM1, and the wiring. Then repair it when there is any abnormality.
3. Replace FM1.
4. Replace IPB.