Troubleshooting - vacuubrand BVC control Instruction Manual

Troubleshooting

Fault
❑ Pump fails to start,
system becomes
vented.
❑ No aspiration at the
VHC , pipette drips
pro
(above causes ex-
cluded).
❑ Pump switches
frequently.
page 55 of 76
Possible cause
➨ Not plugged in, or failure
of electrical supply?
➨ Power switched off?
➨ Motor overloaded?
➨ Internal fuse blown?
➨ Aspiration power setting
is off (atmosphere, no
vacuum)?
➨ Red LED glows continu-
ously?
➨ Filter clogged?
➨ Adapter or aspiration
tube defective?
➨ Filter clogged?
➨ Leak at the bottle head? ✔ Check seals, coupling
➨ Pump operating but no
pumping speed?
➨ Aspiration power setting
is off (atmosphere, no
vacuum)?
➨ Leak in the system?
➨ Filter clogged?
➨ Diaphragms or valves of
the pump defective?
Remedy
✔ Plug in, or check fuse
controlling power outlet.
✔ Switch on power.
✔ Switch off, allow motor
to cool, identify cause of
failure and eliminate be-
fore switching on again.
✔ Identify cause of failure,
replace fuse (under the
cover).
✔ Set aspiration power to
"+" (more vacuum).
✔ Eliminate leaks.
✔ Replace filter.
✔ Replace adapter with
aspiration tube.
✔ Replace filter.
and blind cap. Screw in
or replace if necessary.
✔ Perform maintenance,
replace diaphragm and
valves if necessary.
✔ Set aspiration power to
"+" (more vacuum).
✔ Check tubing, seals,
coupling, and blind cap.
Screw in or replace if
necessary.
✔ Replace filter.
✔ Perform maintenance,
replace diaphragm and
valves if necessary.