Riccar RCU-H9 Manual Do Utilizador

23

Troubleshooting

Obstruction in the   
piping system

Loosen the clamp collars 
around the air intake connec -
tor, to free the central vacuum 
unit from the piping system 
(see figure 3 on page 5). Start 
the unit by plugging the hose 
into a vacuum inlet. By placing 
your extended hand over the 
air intake opening on the unit, 
check the suction strength on 
the unit itself. If suction strength 
is normal, the obstruction is 
in the piping system. If suc -
tion strength is diminished or 
completely   

absent, have the 

unit checked by an authorized 
service center.