Honeywell RTH8500 - Page 24

Installation Guide
22
About your new thermostatSystem setup
Furnace filter change reminder
Function
0500
This feature displays an alert to remind you to change the furnace filter.
Press s/t to set the desired reminder interval:
Options: 0 Off (no reminder to change furnace filter)
1 Reminder after 10-day run time (about 1 month)
2 Reminder after 30-day run time (about 3 months)
3 Reminder after 60-day run time (about 6 months)
4 Reminder after 90-day run time (about 9 months)
5 Reminder after 120-day run time (about 1 year)
6 Reminder after 365-day run time (about 3 years)
Note: Press RESET
to cancel the alert.