VACUUBRAND VacuuHandControl VHCpro - Manual (Page 29)

page 29 of 36
Fault Possible cause Remedy
❑ No aspiration at
the VHC pro , pipette
drips.
➨ Adapter or aspiration
tube defective?
✔ Replace adapter with
aspiration hose.
➨ Aspiration hose clogged
or agglutinated?
✔ Remove clogged or ag-
glutinated hose section
or replace hose.
➨ Pipette fits loosely or fits
bad?
✔ Connect pipette secure-
ly or choose an appro-
priate adapter.
➨ Leak in the system? ✔ Check the system for
leaks.
➨ No vacuum? ✔ Check the vacuum sys-
tem.
❑ Pipette does not
held properly in the
adapter.
➨ Adapter wet or greasy? ✔ Clean or replace adapter.
➨ Pipette with improper
diameter selected?
✔ Choose appropriate pi-
pette or change adapter.
❑ Broken pipette in
the adapter.
➨ The pipette was dam-
aged or forced into the
adapter?
✔ Remove the glass splin-
ters by means of for-
ceps, replace adapter
and aspiration hose if
necessary.
Troubleshooting