5. Troubleshooting
5.1
Descriptions of Error Signals
Error Signal
Descriptions
Er 1
Flow pressure exceeded the pressure limit set by the user.
Check the
tubing and the column to see no unnecessary pressure is being applied.
Also make sure that the pressure limit is set at the reasonable level.
Er 3
The solvent does not flow through check valves.
Use the prime purge
mode to remove any accumulated dirt or air inside the check valves. Clean
the check valves with an ultrasonic bath for more effective cleaning if
necessary.
Er 4
Pump motor was shut down because of high flow pressure / irregular
motor spinning.
The most frequent cause of this error is not the
malfunction of the motor itself, but the presence of air bubbles destabilizing
the flow pressure. Run the prime purge mode to remove the air from the
pump heads and check valves. If the error still persists, clean the check
valves with an ultrasonic bath. Contact FLOM Corporation if these solutions
fail to solve the problem.
Er 5
Battery for memory chip has run out.
Contact FLOM Corporation for
battery replacement. (The average lifespan of battery is 5 years.)
5.2
More Problem Solving
1. No power when the pump turned on.
Check the power plugs and make sure they are inserted fully.
Check the fuses in the fuse box to see if they require replacement.
Check the voltage from power supply. If the voltage exceeds 250V, it
may damage the internal power adaptor.
2. Pump makes a clanging/slapping noise.
Keep the pump reasonably away from other electronic devises.
Keep the pump heads and cooling fan away from columns.
Remove any objects covering ventilations on the casing.
3. Flow rate fluctuates
Check the power supply. If the voltage is under 90V, the pump motor fails
to provide stable piston movement.
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