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Humidifier
Maintenance Indicator.
This feature allows the thermostat to
display the words CHCK PAD (check
humidifier) after a set time of
humidifier operation. This is a
reminder to maintain or clean your
humidifier. The factory set interval for
CHCK PAD to be displayed is 100
hours of humidifier operation. This
should be adjusted with respect to the
humidifier’s recommended mainte-
nance schedule.
Air Filter
Change-Out Indicator.
This feature allows the thermostat to
display the words CHNG FLTR
(change filter) after a set time of fan
operation. This is a reminder to change
or clean your air filter. The factory set
interval for CHNG FLTR to be
displayed is 200 hours of fan opera-
tion. This can be set anywhere from 0
to 1975 hours in 25 hour increments. A
selection of OFF will cancel this
feature. When CHNG FLTR is
displayed, you can clear it by pressing
the SERVICE button. This resets
the timer and starts counting the hours
until the next filter change. The
following steps will allow you to
change the number of hours for filter
change-out.
1. If you see CHNG FLTR on the
display, press the SERVICE button
once to reset the timer. If you do not
see CHNG FLTR proceed to step 2.
When the SERVICE button is pressed
twice, the display will show the The
Features
Service Button Menu (Continued)
Returns to Normal Operation.
PRGM
RUN
7
SERV TIME
(OFF) Days
or
REM SERV TIME
No. of Days
(ON)
or
(OFF)
Selects Routine Maintenance Service Call Reminder.
TIME
FWD
8
SET SERV TIME
(175) Days
25 to 1975
Selects time intervals in increments of 25 days. The RUN
time is the calendar time from when it is entered or reset.
TIME
FWD
(If SERV TIME is ON)