Use Your Filter Timer - Honeywell RTH8500D Owner's Manual

The Filter Timer notifies you when to change your furnace filter.
Reset Filter Timer
1. "Change Filter" appears on the screen when the filter timer
expires.
2. Press the Reset key to restart the filter timer.
SYSTEM
View or Reset Timer Settings Before They Expire
1. Press the More key until the Filter Timer appears on the screen.
2. Press the Edit key to change the Timer reload value. Use the
Up or Down arrow keys to change the number of run Time
Days. See Configure Installer Setup Number 0500, for
approximate calendar days.
3. Press the Done key to go back to viewing the filter timer.
4. Press the Reset key to reset the timer to the timer reload value.
(This is the setting you set in the Installer Setup or the new
reload value you selected in step 2.)
5. Press the Done key.
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Use Your Filter Timer

MON TUE WED
OK TO PICK MULTIPLE DAYS SCREEN LOCKED
CHANGE FILTER
FAN
Inside
AUTO
RESET
HEAT
SCHED HOLD
THU FRI
R UV LAMP HUMIDIFIER PAD
Set To
Following
Schedule
PM
CLOCK SCREEN
52
SAT A A T SUN
MORE
M19975