Troubleshooting - Waters Pump Control Module II Installation Manual

Troubleshooting

Consult the following when troubleshooting malfunctions.
Troubleshooting
Symptom
The OK LED does not
blink, or it continues
blinking.
The RUN LED does not
light during an injection
or does not blink once
during diagnostics.
Pumps connected to the
module are not
represented in the data
system.
Intermittent errors or
erratic behavior
The 515 pump is not
pumping.
Probable cause
The initialization
sequence was
unsuccessful or the LED
is faulty.
The LED is faulty.
The module was
powered-on before the
pumps.
Loose cable connection
or damaged cable
The 515 pump is not in
Remote mode.
The 515 pump is not in
Run mode.
Maintenance and troubleshooting
Solution
Power-off the module,
and wait 2 seconds;
inspect all cable and
power connections, and
then restart the module.
If the previous behavior
persists, contact Waters
Service.
Power-off the module,
wait 2 seconds, and
then restart the module.
If the previous behavior
persists, contact Waters
Service.
Power-off the module
and pumps; wait 2
seconds; restart the
pumps, and then restart
the module.
Inspect cables and
secure any loose
connections.
Set the 515 pump to
Remote, at the front
panel.
Set the 515 pump to
Run, at the front panel.
2-15