Waters ACQUITY UPC2, Overview And Maintenance Manual, Page: 75 / 84

Error messages and troubleshooting 71
Detector not
responding to console
Bad or disconnected
cable
Inspect cable
connections, tighten
connectors, or replace
cable.
Configuration problem Check Ethernet
configuration. For
details, see Empower or
MassLynx online Help.
Leak detected Leak in detector Follow the procedure to
resolve a detector leak
sensor error on page 38 .
Shutter failure message Shutter failed Power-off and then
power-on the PDA
detector.
Solvent in drain line Leak from flow cell
gasket
Replace the flow cell
(see page 46 ).
Leak from flow cell
inlet and outlet fittings
Check fittings for
overtightening or
undertightening, and
replace fittings if
necessary.
Status light blinks and
lamp light is off
The detector is running
confidence tests
No corrective action
required. Wait until
tests finish.
Status light blinks and
lamp light is on
Failed startup
diagnostic tests
• Reseat and check
alignment of flow
cell (see page 44 ).
• Flush the flow cell
(see page 45 ).
Dirty flow cell causing
shutter diagnostic test
to fail
Flush the flow cell (see
page 45 ).
Weak lamp Replace the lamp (see
page 49 ).
Detector troubleshooting: (Continued)
Symptom Possible cause Corrective action