Waters 2545 Binary Gradient Module Operator's Manual page 87

Troubleshooting the hardware (Continued):
Symptom
Priming problems;
Will not start flow
Startup diagnostics fail
Unit does not power on
Possible Cause
Solvent connect
tubes may be leaking
Pump heads not
primed
Solvent tube may be
defective
Defective check valve Replace the check valve
Internal problem
with controller
board, solvent
management system,
or sample
management system
Power cord not
connected
No power at outlet
Power supply fuse
blown or missing
Corrective Action
Check solvent connect
tubes.
Perform the leak test.
Prime pump heads.
Switch to opposite solvent
tube (if you are using tube
A1, switch to tube A2).
cartridge.
Power off and on again. If
failure persists, call
Waters Technical Service.
Check power cord.
Check line voltage.
Replace power supply
fuses.
Troubleshooting hardware 4-9