Waters 2489, Operator'S Manual

Page: 182 / 234

5-20 Error Messages, Diagnostic Tests, and Troubleshooting
Diagnostic tests
The detector performs some user-selected diagnostic tests to help you
troubleshoot basic system problems. Refer to
“Using the diagnostic tests” on
page 5-11 , for diagnostic descriptions and instructions on how to use them.
Error messages that may appear as you start up or operate the detector and
suggested corrective actions are described in the tables on
page 5-3 and
page 5-6 .
Power surges
Power surges, line spikes, and transient energy sources can adversely affect
detector operations. Be sure that the electrical supply used for the detector is
properly grounded and free from any of these conditions.
Hardware troubleshooting
This section contains general hardware troubleshooting for the detector.
General system troubleshooting
Symptom Possible Cause Corrective Action
Detector
inoperative Fuse blown Check that the front panel
display is operational; if not,
replace the ac rear panel fuse.
No power at outlet Check outlet by connecting
another electrical unit known to
be in working order and see
whether it operates.
Front panel display
fails to illuminate Broken electrical
connection Check electrical connections.
Fuse blown Check and, if necessary, replace
fuse(s).
Bad LCD or control
board Contact Waters Technical
Service.
Front panel
displays odd
characters Faulty EPROMs
Bad LCD control
board
Contact Waters Technical
Service.