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10. TROUBLESHOOTING GUIDE (CONT’D)
PROBLEMS POSSIBLE CAUSES POSSIBLE REMEDY
2. Loss or
decrease
of vacuum
occurs.
• The plastic cap is not installed on
the unused inlet.
• Disposable bag is completely full.
• Obstruction in the hose. A blockage
in the hose can be determined by
inserting the hose into any wall
inlet and, while power unit is
running, check each additional
inlet for normal suction by holding
the palm of your hand over the
open inlet. If normal suction is felt
at all other inlets, insert the hose
into a second inlet. If the blockage
still exists it is located in the hose.
However, if the blockage does not
occur when the hose is changed,
the blockage is probably located in
the tubing system leading to the
original inlet.
• Obstruction in the tubing system
inside the walls.
• Wall inlet cover not properly
sealed.
• Cover the unused inlet opening
with the included plastic cap.
• Change disposable bag as
described on page 4.
NOTE: Clean secondary filter if
necessary.
• Disconnect the hose from the wall
inlet and insert a blunt instrument
into the hose — slightly smaller in
diameter — such as a flexible
garden hose. Push the garden
hose through the cleaning system
hose until the obstruction has
been cleared.
• Insert hose end into any inlet with
power unit running, place the palm
of your hand over the opposite
end of the hose. When you can
feel the suction increase, hold
your hand over the hose end for a
few seconds and then quickly
remove your hand. This procedure
repeated several times should
clear the obstruction. If the
blockage is not cleared, contact
your nearest Service Center.
• Check all wall inlet covers to be
sure they are closed and sealed
tightly.
3. Power unit
fails to stop
when the
hose is
removed.
• An electrical short has occurred
somewhere in the system.
• A complete check of all wall inlets
and power unit low voltage control
leads connections.
Contact your authorized Service
Center.
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