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Filter Monitor
Your thermostat also keeps a record of the number of hours your lter has been in use. To maximize your system’s
performance and energy efciency, change or clean your lter regularly.
■ When the total system run time for heat and cool reaches 500
hours, “FILTER” will alternate on the display with the day to
remind you to clean or change your system’s lter. “FILTER”
will continue to display until the counter is set back to zero.
■ Press to review total lter usage. After 15 seconds, the dis-
play will return to normal mode, or you can hit RET CLEAR
to exit immediately. The Filter Monitor will display up to 999
hours and 59 minutes of usage.
■ To reset the Filter Monitor counter, hold for 3 seconds.
The display will blink, and the counter will be reset to zero.
ret/clear

filter