Filter Indication - Trane XT500C Owner's Manual

Filter Indication

Your thermostat monitors the time the fan is running
and lets you know when to replace the filter, based on
the number of fan run-time days you select. Upon
expiration, the thermostat displays Filter and the
backlight flashes during the Wake and Return modes.
FILTER EXPIRATION INDICATOR M17047
To temporarily cancel the flashing
display, press
Pub. No. 22-5128-02
26 69-1216