Fuser Fan Failure - Xerox Phaser 7400 Service Manual

Fuser Fan Failure

The Fuser Fan rotation signal indicates that the fan is no longer operational.
Applicable Status Code:
Code U32:
Fuser Fan Failure
Troubleshooting Reference Table
Applicable Parts
Fuser Fan, PL2.1.111
IDFAN harness, PL5.1.31
Engine Control Board, PL1.1.4
Troubleshooting Procedure Table
Step Actions and Questions
1
Check the following for evidence of fault or
damage:
Fuser Fan
P/J250
FSRFAN Harness
Is there any damage?
2
Check the Fan connection.
Is P/J250 on the printer frame securely
connected?
3
Check for +24 V at the Fan connector.
Disconnect the P/J250.
Is there +24 V between J250-1 <=>
ground?
4 Check for +24 V at the IDFAN connector.
Disconnect IDFAN from the Imaging Unit
Sensor Board.
Is there +24 V between IDFAN-7 <=>
ground?
5
Check continuity of the FSRFAN Harness.
Disconnect IDFAN and P/J250.
Is the wiring harness conductive?
6
Check continuity of the CTG1 Harness.
Is the wiring harness conductive?
3-112
Wiring and Plug/Jack References
Print Engine Map 7 (page 10-10)
Print Engine Map 8 (page 10-11)
Print Engine Imaging Unit Sensor Board (page 10-41)
Yes
Replace any
damaged parts.
Go to Step 3.
Replace the Fuser
Fan (page 8-149).
Go to Step 5.
Replace the Fuser
Fan (page 8-149).
Replace the Engine
Control Board
(page 8-112)
Phaser 7400 Color Printer Service Manual
No
Go to Step 2.
Connect the Fan.
Go to Step 4.
Go to Step 6.
Replace the
harness.
Replace the
harness.