Checking For Blockages - Shark UV440 Owner's Manual

Make sure you are working in a well
lit area and use a flashlight to help
search for blockages.
Fig. 28

CHECKING FOR BLOCKAGES

Blockages may cause your vacuum to overheat and
shut down. To prevent this from happening, check
potential blockage areas after heavy use or if you
detect a loss of suction or poor cleaning performance.
1 Dust Cup
Dust cup may be full. Empty dust cup.
2 Pre-Motor & Post-Motor Filters
• P re-motor filters require washing every 3
months for optimum performance.
The post-motor HEPA filter needs to be washed
every 2 years.
• Ensure that all the filters are clean.
3 Accessories
• Check intake openings:
- Extension Wands
- Dusting Brush
- Crevice Tool
- Power Brush
Fig. 29
4 Hose and Connections to Vacuum
• D etach the stretch hose from the back of the
portable Lift-Away
the tabs together and pulling up. (Fig. 28)
Straighten out the hose and look inside for
blockages.
• R emove the dust cup and extension wand and
separate the portable Lift-Away
from the motorized floor brush. Look in all 4
openings for any blockages. (Fig. 29)
Motorized Floor Brush
5
(Side suction models)
• D etach the hose on the motorized floor brush
at the top by squeezing the tabs together and
pulling out, and at the bottom by pulling out
the connector. Inspect inside the 3 holes.
(Fig. 30)
Fig. 30
canister by squeezing
®
® canister
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