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ICONS AND FEATURES
1. Filter change indicator - will ash after 400 hours of
system use as a reminder to check or change your
lter. Press and hold the F button for 3 seconds
after changing the lter to reset the lter timer.
(Pressing the Filter button for less than 3 seconds will cause the
Filter change indicator icon to appear. The lter timer will not be
affected unless the button is held for more than 3 seconds.)