Main Cooling Fan Service Check - Lexmark MX71x Service Manual

Error code Description
172.03 Cartridge cooling fan took too long to ramp
up
172.04 Cartridge cooling fan under speed or
stalled during speed adjustment state
172.05 Cartridge cooling fan over speed during
speed adjustment state
172.06 Cartridge cooling fan capture data is invalid
and speed control is at maximum in fan
control idle state
172.07 Cartridge cooling fan capture data is invalid
and speed control is at maximum in fan
control adjustment state
176.00 Controller board cooling fan failure

Main cooling fan service check

Action
Step 1
Ensure the cable for socket "M FAN" on the controller board is properly
connected.
Is the above connection properly connected?
Step 2
Reset the machine.
Does the error continue?
Step 3
Reset the machine.
Does the error continue?
Action
Go to "Cartridge cooling fan service check" on page
Go to "Controller board cooling fan service check" on
page 257.
Yes
Go to step 2.
Replace the duplex
motor. See
motor removal" on
page
Replace the controller
board. See
board removal" on
page
Diagnostic information
256
No
Reseat the connection.
Problem resolved.
"Duplex
553.
Problem resolved.
"Controller
422.
7463
257.