12. Trouble shooting
Symptom Possible
cause
Solution
Droplets left inside
Unsuitable tip
Use original tips
the tip
Leakage or pipetted
Non-uniform wetting
Attach new tip
volume too small
of the plastic
Tip incorrectly
Attach firmly
attached
Unsuitable tip
Use original tips
Foreign particles
Clean the tip cone,
between tip and
attach new tip
tip cone
Tip cone holder
Tighten the tip
incorrectly tightened
cone holder
Pipettor damaged
Return to your
Biohit service
representative
for servicing
Pipettor out of
Incorrect operation
Follow instructions
established
specifications
Unsuitable tip
Use original tips
Calibration altered
Recalibrate
Operating button
Liquid has penetrated Clean and grease
jammed or moves
tip cone and dried
the piston/seal
erratically
and the tip cone
Safe Cone filter has
Change filter
been contaminated
Insufficient amount of
Grease accordingly
grease on a piston
and seal
Tip ejector jammed
Tip ejector collar has
Remove and clean
or moves erratically
been contaminated
the ejector collar
and tip cone
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