O
PERATING AND
Troubleshooting
Partial loss of the suction power
Start with the simplest operation, described in point one.
1. Check to see if the hose is clogged.
2. Check to see if the dust container is tightly shut.
3. Open the dirt container. If the filter bag is full, change it.
4. Remove the suction tube from the induction socket at the housing of the motor. Switch on the vacuum cleaner by
hand and check the suction power at the induction socket. If the motor produces enough suction power, the
function of the motor is all right. For precise measurement of the suction power use a vacuum gauge.
5. In order to find out where the tube system is clogged, proceed as follows:
• Switch on the motor and produce underpressure by keeping the sockets closed.
• Go to the nearest induction socket and see if there is enough suction power. If the suction power is lower than
normal, close and open the lid of the socket several times. This has a pumping effect. If necessary, do the same
at the other induction sockets until the problem is solved. When testing the suction power, underpressure (all
sockets are closed) shouldn't be maintained longer than for 2 - 3 minutes in order to avoid an unnecessary
overload of the motor.
• In case the problem can't be solved by the above method, proceed to point 6.
6. In order to remove the object clogging the tube system, you can suck it out of the problem socket using any vacu-
um cleaner. Of course you can also carry your vacuum cleaner to the socket where suction power is too low.
If the method does not help, proceed to point 7.
7. Insert a cleaning worm into the tube system and push out the object clogging the tube.
8. If none of these methods works, contact BVC. We will help you to solve the problem.
The motor does not start
If the small green lamp is on, the power supply is all right. And if the vacuum cleaner can be started by the switch at the
housing of the motor, the reason of the problem is the lowvoltage transformator, the relay, or the low-voltage installati-
on. First you should check to see whether the low-voltage cables are fixed to the sockets correctly.
If necessary, contact your local BVC distributor partner.
© 2011 BVC/EBS, Schweinfurt
M
AINTENANCE
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ANUAL