Waters Alliance e2695 Operator's Manual page 253

General system troubleshooting: (Continued)
Symptom
Screen is blank
Startup diagnostics
indicate failing
result
Startup failure
with error message
"Plunger homing
over pressure (0 or
1)"
Front panel
software "lock up"
Fans not running
The separations
module is not fully
functional in
remote
configuration
(controlled via
RS-232 by a remote
data system)
Possible cause
Unit not powered-on
Startup diagnostic test
failure
Internal problem with
controller board, solvent
management system,
sample management
system
Clogged inline filter
Blockage in sample
management waste line
Restriction between
solvent and sample
management system
Software problem, power
line problem
Unit not powered-on
Fan wiring or fan motor
problem
Power supply not working Call Waters Technical
Data system is not
programmed to control all
separations module
functions
Corrective action
Power-on unit.
Power-off and power-on
again. If the failure is not
corrected, call Waters
Technical Service.
Power-off and power-on
again. If failure not
corrected, call Waters
Technical Service.
Clean or replace filter
element.
Remove blockage or
replace line.
Remove restriction.
Power-off and power-on
again. If the failure is not
corrected, call Waters
Technical Service.
Power-on unit.
Call Waters Technical
Service.
Service.
Disconnect the
separations module from
the remote data system,
then run the unit in a
standalone mode to test
functionality.
July 29, 2013, 715003794 Rev. B
Troubleshoot
253