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5
Troubleshooting
Surveyor MS Pump Troubleshooting Guide
68
Surveyor MS Pump and Surveyor MS Pump Plus Hardware Manual
Thermo Scientific
Surveyor MS Pump Troubleshooting Guide
The information in
can help you to identify specific pump-related problems.
Table 4.
Troubleshooting pump related problems (Sheet 1 of 2)
Problem
Cause
Diagnostic/Remedy
1. No response when
power is switched
on
a. Power cord not firmly
installed
a. Reseat power cord
b. Power cord defective
b. Replace cord
c.
Power entry module
fuse is blown
c.
)
2. LEDs not
illuminated
a. LED PCB defective
a. Contact Thermo Fisher
Scientific service representative
b. Loose LED cable
b. Reseat LED connector
3. Pump motor does
not run
a. Max pressure set to
zero
a. Change max pressure in
Instrument Setup and/or
Direct Control
b. Motor defective
b. Contact Thermo Fisher
Scientific service representative
c.
Motor cable
disconnected
c.
Contact Thermo Fisher
Scientific service representative
d. Defective drive circuit
d. Contact Thermo Fisher
Scientific service representative
e.
Internal fuse blown
e.
Contact Thermo Fisher
Scientific service representative
4. Incorrect solvent
composition
a. Proportioning valve
dirty
a. Clean with acetic acid
b. Proportioning valve
cable loose
b. Reattach proportioning valve
cable
c.
Proportioning valve
timing not properly set
c.
Contact Thermo Fisher
Scientific service representative
d. Proportioning valve
defective
d. Contact Thermo Fisher
Scientific service representative
e.
Proportioning valve
drive circuit defective
e.
Contact Thermo Fisher
Scientific service representative
5. Pump does not
start or stop
remotely
a. Incorrect connection of
synchronization cable
a. Reconnect synchronization
cable