FAQ

AC4870, CDAP4500, CDAP5500, AC5350 - Hold down the timer button for 5 seconds after
inserting new filter.
AC4200 - Hold down the power button for 5 seconds after inserting new filter.
AC5250PT - Insert pen tip into HEPA Reset area on control panel after inserting new filter.
AC5600 - Reset the filter indicator by holding the fan speed button for 5 seconds after inserting
new filer.
AC9200 - On right side of unit, use paper clip and hold down for 5 seconds after inserting new
filter.
AC9400 - Hold down the filter control for 8 seconds after inserting new filter, unit will beep
before resetting.
AP5800W: Hold “AUTO” and “SLEEP CONTROL” for 3 seconds after inserting new filter.
AC225, AP201: Push and hold the night light control button for 3 seconds after inserting new
filter.
Why won’t the UVC light stop blinking?
The UVC/ blue light is blinking because it is a timer that needs reset. Once the filter has been
replaced with a new Guardian Technologies filter you must manually reset the timer. Please
refer to your product instruction manual or the question titled “How do I reset the UV-C light after
replacing the filter?” on how to reset the timer indicator. A downloadable version of the manual
for your specific air purifier is available under product specifications, or under the support
overview tab.
Pluggable Air Purifiers (Models AC225W and AP201W)
How does this pluggable air purifier work?
The fan draws in air. The allergen filter captures airborne particles, such as dust mites, pollens,
mold spores, debris, and pet dander. Cleaner air is released into the room.
Where should I place my pluggable air purifier?