Trane XT500C - Manual (Page 26)

26
Pub. No. 22-5128-02
69-1216
M17047 FILTER EXPIRATION INDICATOR
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.
To temporarily cancel the flashing
display, press␣␣␣␣␣␣