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Reduced Air Flow or Poor Filtering
• The intake or outlet grille may be
blocked. Make sure nothing is in
front of or on top of the air purifier.
• The carbon pre-filter or the HEPA
filter may be clogged. Check the
filters with the filter gauge and
replace them, if necessary.
Germicidal UV Bulb Does Not Light
• Is the UV switch turned on?
• Is the fan running? The UV bulb will
not work unless the fan is on.
• The bulb may be burned out.
See “Replacing the UV Bulb” for
replacement instructions.
• The UV starter may need replacement.
See “Replacing the UV Starter” for
replacement instructions.
Troubleshooting Guide
The following section provides the solutions to many common problems and
questions. If your air purifier is not working correctly, review these solutions
first. If your problem is still not solved after reviewing this guide, call our toll-free
customer service number, listed on the front cover of this manual, for assistance.
The Air Purifier Will Not Turn On
• Are the intake grille and the outlet
grille installed and locked into place?
• Is the air purifier plugged into a
powered outlet?
• Is the fan speed knob turned on?
The Air Purifier Changes Speed
• AirSmart
™
models are designed to
sense the level of contaminants in the
air and adjust the fan speed to provide
the most effective air purification
possible. If the AirSmart
™
control is
set to Auto, it will automatically
change fan speeds to adjust for
changing air quality.
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