Rear Fan Failure - Xerox Phaser 6300 Service Manual

Rear Fan Failure

The Rear Fan rotation signal indicates the fan is no longer operational.
Applicable Status Code:
Code 51: Rear Fan Failure
Troubleshooting Reference Table
Applicable Parts
Rear Fan, PL1.1.19
LVPS, PL9.1.6
Engine Control Board, PL9.1.16
LV Harness, PL10.1.2
Troubleshooting Procedure Table
Step Actions and Questions
1
Check the Rear Fan for damage.
Remove the Rear Cover.
Is the fan damaged?
2
Check the Rear Fan connection.
Is P/J166 connected to the harness?
3 Check orientation of the Rear Fan.
Does the Fan's label face inwards?
4 Test the Rear Fan.
Run the Service Diagnostics Rear Fan test.
Does the fan operate?
5 Check for +24 V to the fan.
Disconnect P/J166.
Is there +24 V across P166-1 <=> P166-3?
6 Check the fan rotation signal to the LVPS.
Print one sheet.
Is there +3.3 V between P/J166-1 <=>
P/J166-3?
7
Check the rotation signal from the LVPS.
Print one sheet.
Is there +3.3 V between P/J165-15 <=>
P/J165-3?
8
Check the fan rotation signal at the Engine
Control Board.
Print one sheet.
Is there +3.3 V between P/J61-4 <=>
P/J61-16?
3-72
Wiring and Plug/Jack References
Print Engine Map 2 - P/J Locator (page 10-6)
Print Engine Power Wiring (page 10-17)
Phaser 6300/6350 Color Laser Printer Service Manual
Yes
Replace the Rear
Fan (page 8-102).
Go to Step 3.
Go to Step 4.
Go to Step 6.
Replace the Rear
Fan (page 8-102).
Replace the Fuser
Fan (page 8-66).
Replace the LVPS
(page 8-99).
Replace the LV
Harness
No
Go to Step 2.
Connect the Fan.
Correct the
installation.
Go to Step 5.
Replace the LVPS
(page 8-99).
Go to Step 7.
Go to Step 8.
Replace the
Engine Control
Board
(page 8-104).