User Guide

77
Symptom Possible Cause Action
Cannot set the
system setting to
Heat or Cool.
System Type is set to Cool
Only or Heat Only or Heat
Only with Fan.
Set System Type (Installer Setup
Number 0170) to match the
installed equipment.
Heat On is not in the
display.
System is not set to Heat
and/or temperature is no
t
above room temperature.
Set the system setting to Heat
and set the temperature setting
above the room temperature.
Cool On is not in the
display.
System is not set to Cool
and/or temperature is no
t
below room temperature.
Set the system setting to Cool
and set the temperature setting
below the room temperature.