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41998-01 12
Air Purier Maintenance
6. Install the grill back onto the unit. First, line up the tabs on the bottom of the
grill with the openings on the purier base and then push the top of the grill
forward until it is closed.
7. Plug in the air purier.
NOTE: This unit will not operate unless the grill is in the
correct position.
8. Finally, reset the Pre-Filter Counter by pressing the PREFILTER RESET
key for 2
seconds. The Pre-Filter Counter will return to 100% and the Pre-Filter indicator
will stop ashing.
Changing the Filter
When the lter exceeds 2800 hours (approximately 3-6 months of use), the Filter Life Counter
will display 0% life remaining and the Filter indicator will ash (refer to Filter Life Counters
for additional information, pg. 9). This is a reminder that you should check the lter and
replace if necessary. The proper time to change the lter depends on usage and the envi-
ronment. Use the following list to help determine if the lter should be changed:
• Compare the color of the lter to the color coded chart on the inside of the housing. If
the lter color matches the darkest color on the chart, you should replace the lter.
• If you notice a decrease in air output or an increase in noise at any time during normal
operation, the lter may be clogged. Replace the lter to return to normal operation.
To change the lter and reset the Filter Life Counter:
1. First, turn o and unplug the air purier.
2. Next, remove the front grill. Place your ngers in the recesses on either side of
the top of the grill and pull rmly.
3. Gently pull on the lter to remove it from the unit. While removing the lter,
note the directional arrows printed on the side of the lter. The new lter will
be installed with the same orientation. Once removed, the used lter can be
discarded.
4. Remove the new lter from its wrapping and look at the directional arrows
printed on the side of the lter. Install the lter with arrows pointing towards
the unit. Press the lter rmly into the air purier. To avoid damaging the lter
media, you should press on the frame of the lter only.
5. Reinstall the grill by rst lining up the tabs on the bottom of the grill with the
openings on the air purier base and then pushing the top of the grill forward
until it is closed.
Continued