WATERS CORPORATION 2424, Operator'S Manual, Page: 143 / 196

General troubleshooting 5-17
Operational error messages
The following table contains operational error messages, along with their
descriptions, for the detector.
Reference dark
current too high
Light entering optics
bench.
Problem with PMT
or personality board.
1. Power-off and then
power-on the detector.
2. If the problem persists, call
Waters Technical Service
(see page 4-2 ).
Reference dark
current too low
Problem with PMT
or personality board.
1. Power-off and then
power-on the detector.
2. If the problem persists, call
Waters Technical Service
(see page 4-2 ).
Signal too high. Bad
PMT or light leak in
bench.
Light entering optics
bench.
1. Power-off and then
power-on the detector.
2. If the problem persists, call
Waters Technical Service
(see page 4-2 ).
System not
normalized. Run
diagnostic.
Memory was reset
and previous
normalization
information was
reset.
1. Power-off and then
power-on the detector.
2. If the problem persists, call
Waters Technical Service
(see page 4-2 ).
Operational error messages
Error message Probable cause Corrective action
Column heater fell
below its set
temperature
Heater failure (short
circuit).
Cable or connector
short.
Problem with
personality board.
1. Power-off and then
power-on the detector.
2. If the problem persists, call
Waters Technical Service
(see page 4-2 ).
Power-on confidence check error messages (Continued)
Error message Possible cause Corrective action