Printronix P7000 Series Maintenance Manual page 152

Chapter 3
Troubleshooting Display Messages
Table 5. P7000 H-Series (Spool) Error Messages List
Displayed Message
726:SHUTT. FAN
FAIL*
152
Explanation
Sensors cannot detect
current in the hammer bank
fan circuit.
Solution
1. Cycle power. If the message
appears, press CANCEL.
2. Power off and unplug the printer.
Remove the paper guide
assembly or pedestal top cover.
Verify that the connector is not
installed backwards.
3. Disconnect connector P107 from
the controller board. Test
connector P107/HBF for shorts or
opens. (Refer to the Main Wire
Harness Test Tables in Appendix
A.) Replace components that fail
test.
4. Make sure P107/HBF has a good
connection at J107 on the
controller board.
5. Inspect for obstructions of
airways and vents. Check for
items beneath the printer
blocking cabinet vents. Remove
obstructions. Make sure cabinet
exhaust fan vents are not
blocked.
6. Power on the printer. Check for
fan operation. If the message
appears or the fan does not work,
replace the exhaust fan.
7. Power on the printer. If the
message appears, replace the
controller board. Record the
message and return it with the
defective board.