Possible cause | Solution |
---|---|
Pump not primed | Prime the pump (see Prime the analytical pump). |
Damaged piston seal | Replace the piston seal (see Remove and replace the pistons, analytical pump seals, and O-rings). |
Dirty pump check valve | Clean or replace the check valve (see Replace the pump check valves). |
Leaking liquid line or fitting | Check for small leaks in the tubing and fittings. Tighten the fittings and replace any tubing or fittings as required (see Replace tubing and fittings). |