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840144101 ENv03.qxd:840144100 ENv01.qxd
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
• Is the air purifier plugged into a
powered outlet?
The Air Purifier Changes Speed
• Air quality sensor 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 air quality sensor control is set to Auto, it will automatically change fan
speeds to adjust for changing air quality.
Reduced Air Flow or Poor Filtering
• The intake or outlet grill may be
blocked. Make sure nothing is in
front of or directly behind the air
purifier.
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• Is the fan speed knob turned on?
• The HEPA filter may be clogged.
Replace if necessary.
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