■■■■■■■■■■■■■■■■■■■■■■
5 Troubleshooting
883 Basic IC plus
■■■■■■■■
89
5 Troubleshooting
Problem Cause Remedy
Marked drop in
pressure.
Leak in the system. Check the capillary connections and seal leaks,
if necessary (see chapter 3.5, page 14).
The baseline has a
large amount of
noise.
The eluent path has a leak. Check the eluent path and fix the leak.
If necessary, tighten the pressure screws using
a wrench (6.2739.000).
High-pressure pump – Con-
taminated pump valves.
Clean the pump valves (see chapter 4.6, page
60).
The eluent path is blocked. Check the eluent path and eliminate the block-
age.
Contaminations in the elu-
ent
Check the quality of the chemicals and the
water.
High-pressure pump –
Defective piston seals.
Replace the piston seals (see chapter 4.6, page
60).
The pulsation absorber is
not connected.
Connect the pulsation absorber (see chapter
3.11, page 28).
The pulsation absorber is
not connected or is defec-
tive.
Connect (see chapter 3.11, page 28) or
replace the pulsation absorber.
The baseline is drift-
ing.
Leak in the system. Check all capillary connections and seal leaks,
if necessary (see chapter 3.5, page 14).
The organic solvent in the
eluent is evaporating.
■ Check the eluent bottle cap (see chapter
3.8, page 23).
■ Constantly stir the eluent.
The pressure in the
system markedly
increases.
The inline filter
(6.2821.120) is blocked.
Replace the filter (6.2821.130) .
The suppressor is blocked. ■ Regenerate the suppressor .
Note: Pump tubing connection with filter
(6.2821.180) must be used.