Honeywell RTH8500D Owner's Manual - Page 52

Use Your Filter Timer 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. MON TUE WED THU FRI SAT SUN FAN AUTO OK TO PICK MULTIPLE DAYS SCREEN LOCKED CHANGE FILTER UV LAMP HUMIDIFIER PAD Inside Set To SYSTEM RESET HEAT PM Following Schedule SCHED HOLD CLOCK SCREEN MORE M19975 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. 69-1725-1 52