Troubleshooting: Pumps - GE AKTA avant User Manual

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Troubleshooting: Pumps

In this section

Liquid is leaking be-

tween the pump head

and the side panel

Low eluent flow and

ÄKTA avant User Manual 29035184 AE

Troubleshooting for System pumps and Sample pumps

Example of pump pressure curves

Remove persistent air bubbles

Possible cause and action

Piston seal or rinsing membrane incorrectly fitted

Replace or reinstall the seal or the membrane. See

ÄKTA avant Operating Instructions.

Air in pumps

Purge the pumps. See Section 5.4.1 Prime buffer inlets

and purge system pumps, on page 166.

Bad piston spring

Disassemble the pump head and examine the piston

spring. If the spring is corroded, check piston seal and

rinse membrane. Make sure that the pump piston

rinsing system is always used when working with

aqueous buffers containing salt.

Bad pump piston

If the piston is damaged, replace it according to ÄKTA

avant Operating Instructions.

Bad pump piston seal

Replace the piston seal and rinse membrane accord-

ing to ÄKTA avant Operating Instructions.

Blocked pump flow restrictors

See Section 7.6.10 Clean pump flow restrictors, on

8 Troubleshooting

8.6 Troubleshooting: Pumps