Owner`s manual

16
Central Vacuum Systems
TROUBLESHOOTING
SYMPTOM
The inlet socket
whistles
No vacuum
power
Low vacuum
power
The system does
not start
The system remains
on
The system turns on
and off intermittently
The ground fault
circuit-breaker trips
CAUSE
1 Filter clogging
2 Hose clogging
3 Wrong closing of the dust container – cyclone’s gasket
(optional) damaged or out of place
4 Simultaneous use of several inlet sockets
5 Tubes clogging – air infiltration
6 Thermal contact breaker
7 Defective or dirty microswitch of the socket
8 Wear of the inlet socket’s contacts
9 12 Volt mains lead to inlet sockets
is damaged
10 Defective electric parts– motor failure
11 Dust container full
12 Defective gasket of the inlet socket – protruding screws
5. TUBES CLOGGING – AIR INFILTRATION
If the procedures listed under 1,2,3 and 4 do not
increase the air flow rate, clogging is in the
tubing. (caused by punctures, drillings, or nails
driven into the wall).
If the system is provided by sphere valve for the
manual closing of the different pipe lines, close
the valve corresponding to the defective line
until the intervention of the installer. The system
can be used on the pipe line corresponding to
the others closing valves.
6. THERMAL CONTACT BREAKER
The contact breaker (the main switch) blows
when
- the vacuum motor has been subjected to a
considerable electric current overload;
- the motor is defective;
- the motor has overheated due to filter
clogging, clogging of the tubing or a narrowing
in the breather pipe.
Before switching the system on again, wait 8-10
minutes for the motor to cool down. If after com-
pleting the procedures as of items 1, 2 and 5 the
switch continues to trip, switch the system off
and contact your installer
7. DEFECTIVE OR DIRTY MICROSWITCH OF
THE SOCKET
If the central vacuum cleaner remains
switched on or does not start despite the
closing or opening of the inlet socket, check
whether the microswitch on the socket itself
works properly. If you cannot find the cause,
contact your installer.
1. FILTER CLOGGING
If suction power at the inlet socket is low, the
filter may be excessively clogged.
In this case:
- if the machine has a manual shaking device,
clean it as indicated on page 15;
- if it equipped with an automatic shaking
device, see page 11.
2. HOSE CLOGGING
If the suction power at the inlet socket is good,
clogging is in the hose or in the brushes. If – on
the contrary - suction power at the inlet socket is
weak, clogging is
a. in the socket (visible to the naked eye)
b. in the tubing (see item 5)
If necessary, clean them manually (for precau-
tion, wear latex gloves, as those used in the
kitchen).
3. WRONG CLOSING OF THE DUST CON-
TAINER – CYCLONE’S GASKET (OPTIONAL)
DAMAGED OR OUT OF PLACE
After emptying, make sure that the dust
container closes tightly to avoid suction power
reductions. Furthermore, check that the gasket
is positioned correctly and that it is not dam-
aged.
4. SIMULTANEOUS USE OF SEVERAL INLET
SOCKETS
The central vacuum cleaners are designed for a
number of operators depending on the model of
the machine. The simultaneous use of several
inlet sockets on the same network entails a
considerable suction power reduction.