3-32 Phaser 5500 Printer Service Manual
Fan Failure - U4-9 Fan Defect
The Fuser Fan failed.
Applicable Error Codes
Fuser Failure - U4-9 Fan Defect
Fuser Fan Failure Troubleshooting Reference
Applicable Parts References
■ Fuser Fan
■ Motor Assembly
■ Engine Logic Board
■ Print Engine P/J Electrical (page 10-12)
■ Print Engine Drive/CRUM Wiring (page 10-25)
■ PL5.1 Laser, CRU and Toner Dispense (page 9-32)
■ PL7.1 Print Engine Drive (page 9-38)
■ PL8.1 Print Engine Electrical (page 9-40)
Fuser Fan Failure Troubleshooting Procedure
Step Actions and Questions Yes No
1
Check the Fuser Fan installation.
1. Remove the I/P Board Cover.
2. Remove the Upper Rear Cover.
Is the Fan installed properly (label out)?
Go to Step 2. Correct the
installation.
2
Check if the Fuser Fan rotates.
Does the Fan rotate?
Go to Step 7. Go to Step 3.
3
Test the Fuser Fan.
Run the Service Diagnostic Fuser Fan test.
Does the Fuser Fan operate properly?
Go to Step 7. Go to Step 4.
4
Check the Fuser Fan connection (CN102).
Is the Fan connected?
Go to Step 5. Connect the Fan.
5
Check continuity between the Fan and
Motor Assembly (CN102).
Is there continuity on each wire?
Go to Step 6. Replace the Fan
(
page 8-59).
6
Check for +24 V to the Fuser Fan.
Is there +24 V across CN102-3(+) <=>
ground?
Replace the Fan
(
page 8-59).
Replace the
Engine Logic
Board
(
page 8-89), then
replace the Motor
Assembly.
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