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Troubleshooting
BlueShadow Pump 80P Instructions V7685
7.2 Possible problems and solutions
Issue
Solution
Pump will not turn
on
The power cable must be connected to the
power supply.
Inspect the power cable to ensure that it is
plugged into the power supply.
When purging, the
pump switches off
The venting screw on the pressure sensor must
be turned up.
Check if the venting screw on the pressure
sensor is turned open.
Pump does not
transport solvent
Check the following options:
Purge the pump head so as to remove the air
bubbles.
Inspect the eluent filter of the HPLC column
and change when blocked.
Replacing the pump head.
Cleaning the check valves.
Changing the check valves.
If the pump head seals are defective, solvent
enters the piston backflushing; inform the
technical support.
Pressure or flow
rate fluctuations
Check the following options:
Cleaning the check valves.
Changing the check valves.
Purge the pump head so as to remove the air
bubbles.
Tighten the capillary screw fittings on to the
inlet and outlet screw fittings of the pump
head (see chapter 8.6 on page 54).
Pump head leaks
Check the following options:
Inspect and tighten the inlet and outlet screw
fittings of the pump head.
Replacing the pump head.
If the pump head seals are defective, solvent
enters the piston backflushing; inform the
Technical Support.
Flow rate is not
correct
Check the following options:
Check the data for the solvent
compressibility.
Cleaning the check valves.
Changing the check valves.