BASIC TROUBLESHOOTING
49
SYMPTOM
POSSIBLE FAULT AND REMEDY
Heat or Cool is flashing
This is not a fault but indicates that the thermostat heating or cooling
relay is energized. Depending upon the equipment configuration,
Heat 2 or Cool 2 will also be displayed if a second stage is energized.
Heat 3 is also displayed for heat pumps having three heating stages.
Lock icon is displayed
when trying to set a higher
or lower temperature
This is not a fault. The thermostat heating and cooling limits are
preventing setting a temperature above or below the limit values.
These values can be changes in the Installer Menu.
07 = Cooling Limit. Factory default is 50° F. Adjustable from 43° F
to 122° F.
08 = Heating Limit. Factory default is 90° F. Adjustable from 41° F
to 120° F.
The fan continues to run
after a heating or cooling
call is satisfied
The thermostat fan mode may be set to Always On. Touch the fan
icon and change it to Automatic. When the
UT32
is configured as a
programmable thermostat, the fan operation can be programmed
for Automatic or Always On with each event. If the Programmable
Fan feature is not required, set Option 04 = 1.
Lock values have been set. Refer to Installer Option menu 06. To
remove all lock values, set 06 = 0.
Some functions cannot be
changed and a padlock
icon is displayed