Diagnostic information 2-135
7510
902.00 General upper engine error fuse #1
Step Check Yes No
1 Perform a POR.
Does the error occur when the power is turned off/on?
Go to step 2. Perform several
print tests.
If the problem
remains, go to
step 2.
2
Check the rear upper cooling fan cables and any associated
cables for damage.
Are the above components free from crimps and damage?
Go to step 3. Repair or replace
the appropriate
cable assemblies
or replace the rear
upper cooling fan.
Go to “Rear
upper cooling fan
removal” on
page 4-111.
3
Check the rear lower cooling fan cables and any associated
cables for damage.
Are the above components free from crimps and damage?
Go to step 4. Repair or replace
the appropriate
cable assemblies
or replace the rear
lower cooling fan
assembly.
Go to “Rear lower
cooling fan
assembly
removal” on
page 4-99.
4
Check the fuser cooling fan cables and any associated
cables for damage.
Are the above components free from crimps and damage?
Go to step 5. Repair or replace
the appropriate
cable assemblies
or replace the
fuser cooling fan.
Go to “Fuser
cooling fan
removal” on
page 4-101.
5
Check the transfer belt drive motor cooling fan cables and
any associated cables for damage.
Are the above components free from crimps and damage?
Go to step 6 Repair or replace
the appropriate
cable assemblies
or replace the
transfer belt drive
motor cooling fan.
Go to “Transfer
belt drive motor
cooling fan
removal” on
page 4-92.
6
Check the 24V LVPS cooling fan cables and any associated
cables for damage.
Are the above components free from crimps and damage?
Go to step 7. Repair or replace
the appropriate
cable assemblies
or replace the 24V
LVPS cooling fan.
Go to “24V LVPS
cooling fan
removal” on
page 4-98.
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