Troubleshooting Hardware - Waters 2545 Binary Gradient Module Operator's Manual

Troubleshooting hardware

This table contains suggestions for resolving hardware problems in the binary
gradient module. If the suggested solutions do not solve the problem, call
Waters Technical Service.
Troubleshooting the hardware :
Symptom
Display is blank
Erratic flow rate or
pressures
Front panel software
"lock up"
Manifold leaking
4-8 Troubleshooting
Possible Cause
Unit not powered on
Startup diagnostics
failure
Contrast set too dark Press contrast button.
Air bubble in pump
head
Dirty inlet check
valves
Prime/vent valve
open or leaking
Plugged solvent
reservoir filter
Plunger seal leaking
Software problem or
power line problem
Defective solvent
select valve
Corrective Action
Power on unit.
Power off and on again. If
failure persists, call
Waters Technical Service.
Prime the binary gradient
module.
Clean/replace inlet check
valves.
Close or rebuild
prime/vent valve.
Clean or replace filter.
Replace plunger seal
assembly.
Power off and on again. If
failure persists, call
Waters Technical Service.
Call Waters Technical
Service.