Check the vacuum pipe on the BSV to make sure there are
no clogs holding back the air vacuum. Also, check your
debris bag. If it is full, empty it. If it has too much
debris in it, it can create a low vacuum.
Check your blower pipe for any clogs. Make sure the blower
pipe is on tightly and there are no cracks that could
cause air leakage before it gets to the end of the tube.
I am hearing a grinding noise when I vacuum. What is it?
You may have inadvertently vacuumed up a stick or stone.Remove
your vacuum tube and check the blower fan to make sure
it does not have any debris stuck inside it.