Incident: A large volume of air enters pump. Both pump heads fails to deliver buffer.
Action: Purge pump. See Section 5.4.1 Prime buffer inlets and purge system pumps,
on page 166.
Incident: Blocked outlet check valve
Action: Clean the check valve, See Section 7.6.9 Clean pump head check valves, on
page 312.
Incident: Inlet check valve is loose.
Action: Tighten the check valve. See Section 7.8.8 Replace pump head check valves,
on page 349.
ÄKTA avant User Manual 29035184 AE 401
8 Troubleshooting
8.6 Troubleshooting: Pumps
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