Waters 2998 Operator's Manual page 72

PDA detector troubleshooting (Continued)
Symptom
Solvent in drain line
4-10 Diagnostic Tests and Troubleshooting
Possible cause
Leak from flow cell
gasket
Leak from flow cell
inlet and outlet fittings
Corrective action
Replace the flow cell
(see page 3-5).
Check fittings for
overtightening or
undertightening, and
replace fittings if
necessary.