TB7100A1000 MULTIPRO™ MULTISPEED AND MULTIPURPOSE THERMOSTAT
15 62-0273—05
Heat pump puts out cool
air in the heat mode and
warm air in the cool
mode.
Changeover Valve (Installer Setup
Number 0190) is not configured to
match the changeover required by
the installed heat pump.
Set Changeover Valve (Installer Setup Number 0190)
to match the changeover required by the installed
heat pump.
Both the heating and
cooling equipment are
running at the same
time.
The heating equipment is not a heat
pump but the System Type (Installer
Setup Number 0170) is set to Heat
Pump.
Set System Type (Installer Setup Number 0170) to
match the installed heating and/or cooling equipment.
Heating and cooling wires are shorted
together.
Separate the shorted heating and cooling wires.
Cooling does not turn
on (Cool On is solid in
the display).
Cooling equipment failure. Check for 24 Vac at the equipment on the secondary
side of the transformer between power and common.
If voltage is not present, check the cooling equipment
to find the cause of the problem.
Check for 24 Vac between the cool terminal (Y) and
transformer common. If 24 Vac is present, the
thermostat is functional. Check the cooling equipment
to find the cause of the problem.
Loose or broken wire connection
between thermostat and cooling
equipment.
Check for 24 Vac between the cool terminal (Y) and
transformer common. If voltage is not present, check
the wire connection (loose or broken) between the
thermostat and the cooling equipment.
Fan does not turn on in
a call for heat (electric
furnace).
Fan Control in Heating is set to
System Controls Fan (Setting 0180).
Set Fan Control in Heating to Thermostat Controls
Fan (Setting 0180).
Heating equipment is
running in the cool
mode.
Heating equipment is not a heat
pump but System Type (Installer
Setup Number 0170) is set to Heat
Pump.
Set System Type (Installer Setup Number 0170) to
match the installed heating and/or cooling equipment.
Heating equipment
does not turn off and
heat temperature
setting is set below
room temperature (Heat
On is not in the display).
Heating equipment is not a heat
pump but System Type (Installer
Setup Number 0170) is set to Heat
Pump.
Set System Type (Installer Setup Number 0170) to
match the installed heating and/or cooling equipment.
Cannot set the system
setting to Heat.
System Type (Installer Setup Number
0170) is set to Cool Only.
Set System Type (Installer Setup Number 0170) to
match the installed heating and/or cooling equipment.
Cannot set the system
setting to Cool.
System Type (Installer Setup Number
0170) is set to Heat Only or Heat Only
with Fan.
Set System Type (Installer Setup Number 0170) to
match the installed heating and/or cooling equipment.
Heat On is not in the
display.
System setting is not set to Heat and/
or temperature setting is not set
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 setting is not set to Cool and/
or the temperature setting is not set
below room temperature.
Set the system setting to Cool and set the
temperature setting below the room temperature.
Wait is in the display. Compressor minimum off timer is
active.
Wait up to five minutes for the cooling or heating
(heat pump) equipment to turn on.
Table 6. Troubleshooting. (Continued)
Symptom Possible Cause Action