VACUUBRAND BVC professional G - Manual (Page 50)

page 50 of 68
Fault Possible cause Remedy
❑ Pump fails to start,
system becomes
vented.
➨ Not plugged in, or failure
of electrical supply?
✔ Plug in, or check fuse
controlling power outlet.
➨ Power switched off? ✔ Switch on power.
➨ Motor overloaded? ✔ Switch off, allow motor
to cool, identify cause of
failure and eliminate be-
fore switching on again.
➨ Internal fuse blown? ✔ Identify cause of failure,
replace fuse (under the
cover).
➨ Aspiration power setting
is off (atmosphere, no
vacuum)?
✔ Set aspiration power to
“+“ (more vacuum).
➨ Red LED glows continu-
ously?
✔ Eliminate leaks.
➨ Filter clogged? ✔ Replace filter.
❑ No aspiration at the
VHC pro , pipette drips
(above causes ex-
cluded).
➨ Adapter or aspiration
tube defective?
✔ Replace adapter with
aspiration tube.
➨ Filter clogged? ✔ Replace filter.
➨ Leak at the bottle head? ✔ Check seals, coupling
and blind cap. Screw in
or replace if necessary.
➨ Pump operating but no
pumping speed?
✔ Perform maintenance,
replace diaphragm and
valves if necessary.
➨ Aspiration power setting
is off (atmosphere, no
vacuum)?
✔ Set aspiration power to
“+“ (more vacuum).
❑ Pump switches
frequently.
➨ Leak in the system? ✔ Check tubing, seals,
coupling, and blind cap.
Screw in or replace if
necessary.
➨ Filter clogged? ✔ Replace filter.
➨ Diaphragms or valves of
the pump defective?
✔ Perform maintenance,
replace diaphragm and
valves if necessary.
Troubleshooting