Auto Changeover; Troubleshooting - Carrier Comfort series Owner's Manual

Your thermostat provides complete, automatic
control over heating and cooling with auto
changeover. Auto changeover means your system
will automatically heat or cool as needed to main-
tain your temperature set points.
Auto changeover makes life easier because you
no longer have to manually switch the thermostat
between heating or cooling operation. Just set
your heating and cooling set points and let the
system do the rest!
NOTE: I[ auto changeover is not necessary in your
area of the country, your installer may disable the
AUTO mode feature.
The AUXILIARY HEAT indicator is displayed...
The AUX HEAT indi c_or appears on the heat pump
version of the thermostat only. It is displayed when
your system is operating on auxiliary heat.
NOTE This indicator does not reflect a problem
with your system.
The SERVICE FILTER indicator is displayed...
The SERVICE FILTER indi cator tells you when to
clean or replace your air filter. Press the RESET
FILTER bu tlan after cleaning or replacing the filter
to turn off the indicator and re set the system.
NOTE This indicator does not reflect a problem
with your system.
You have a power outage...
An internal power sou rce maintains the desired
tempera tu re settings indefinitely.
You have a sy stem error message...
The temperaturesensor failure indicator sends
a -- reading to the LCDclsplay. This means your
thermostat's temperature sensor is no longer able to
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