Bissell 3990 - Manual (Page 9)

Clean carpet sensor
(Select models only)
The clean carpet sensor detects dirt being
picked up while the vacuum is in use. When the
vacuum is picking up dirt, the red light will come
on. Occasionally, the lights may alternate quickly
back and forth if the area is only lightly soiled
or the dirt is spread out. For the best cleaning,
continue to vacuum until the green light remains
constantly illuminated.
Special on-board tools
Your vacuum is not only a powerful carpet and
rug cleaner, it’s also a versatile above floor
vacuum cleaner when you select one of the
special tools.
1. Raise the handle to the upright position.
2. Grasp the curved hose wand handle to
separate from hose wand base.
3. Attach tools by firmly pushing onto vacuum
hose, curved hose wand or extension wand.
They are a friction fit, so be sure the hose
and tool fit snuggly together.
Dusting Brush/Upholstery Tool: Two types of
cleaning tools in one attachment.
• Use the dusting brush to dust
furniture, blinds, books, lamps, shelves
and baseboards.
• Slide the brush off to use the
upholstery tool on cushions,
draperies and fabrics.
O
peration
9
w w w . b i s s e l l . c o m 8 0 0 . 2 3 7 . 7 6 9 1
Dusting Brush/
Upholstery Tool
Extension Wand
Crevice Tool
Hose Wand Base
Curved Hose
Wand
Electronic
Dirt Sensor
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