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13
PROBLEM POSSIBLE CAUSE SOLUTION
Unit will not operate • Unit is not plugged in
• Power button not pressed
• No power to unit
• True HEPA filter not installed
correctly
• Grille cover not installed
correctly
• Plug unit in
• Press the power button to turn the
power on
• Check circuits, fuses, try a
different outlet
• Reinstall the True HEPA filter
• Reinstall the grille cover
Reduced airflow • The grille may be blocked
• Prefilter needs to be vacuumed
• The True HEPA filter needs to be
replaced
• Check to make sure nothing is
blocking the grille and air outlet
• Vacuum the Prefilter with the brush
attachment of your vacuum cleaner
• Replace the True HEPA filter
Reduced odor removal • The True HEPA filter needs to be
replaced
• Replace the True HEPA filter
Excessive noise • The unit is not level • Place the unit on a flat, level surface
Replace filter light remains
lit after filter replacement
• The replace filter indicator needs
to be reset
• Press and hold the ionizer button for
3 seconds until the replace filter light
turns off
Display lights are off • Night-light setting • Press the night-light button until the
desired lights are on/off
Buttons do not operate • Child lock engaged • Press and hold the night-light and
timer buttons for 3 seconds to
disengage the child lock
Remote control does not
operate
• Battery needs replacement • Replace battery as shown in the
remote control battery replacement
instructions
Troubleshooting
This product earned the ENERGY STAR by meeting strict energy efficiency guidelines set by the US EPA.
US EPA does not endorse any manufacturer claims of healthier indoor air from the use of this product.
The energy efficiency of this ENERGY STAR qualified model is measured based on a ratio between the
model’s CADR for dust and the electrical energy it consumes, or CADR/Watt.
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