Troubleshooting 3-29
Detector troubleshooting
Before using the troubleshooting tables in this section, use those that appear
earlier in the chapter to identify the part of the system in which the problem
originates.
Autocalibration failed System not purged
before autocalibration
Purge system and
repeat autocalibration.
Solvent not properly
degassed
Sparge solvent.
System pressure
fluctuating more than
50 psi
Allow pressure to
stabilize, then repeat
autocalibration.
System pressure not at
400 +/− 50 psi
Set pump flow to
achieve 400 +/– 50 psi.
Syringe contains a gas
bubble (usually seen at
the top of the syringe)
Remove bubble.
Leaks at the fluid
tubing connection
Check for leakage at the
connections with the
corner of a tissue, and
tighten connection
slightly if the tissue is
moistened.
Seal pack failure Disassemble ferrule
connection, rinse,
reassemble, check for
leak.
Replace ferrule and
screw.
Replace seal pack.
Carousel engages and
turns, but does not find
position 1
Dirty or defective
carousel
Try another carousel;
clean carousel.
Defective carousel
reader
Call Waters Technical
Service.
Autoinjector troubleshooting (Continued)
Symptom Possible cause Corrective action
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