Honeywell VisionPRO 8000 Product Data page 39

Symptom
Heat pump puts out cool air in
the heat mode and warm air in
the cool mode.
Both the heating and cooling
equipment are running at the
same time.
Heating equipment is running
in the cool mode.
Heating equipment does not
turn off and heat temperature
setting is set below room
temperature (Heat On is not in
the display).
Cannot set the system setting
to Heat.
Cannot set the system setting
to Cool.
Heat On is not in the display.
Cool On is not in the display.
Wait is in the display.
"Screen Locked" appears on
the screen and all or some of
the keys do not respond.
Table 14. Troubleshooting. (Continued)
Possible Cause
Changeover Valve (Installer Setup
Number 0190) is not configured to
match the changeover required by the
installed heat pump.
The heating equipment is not a heat
pump but the System Type (Installer
Setup Number 0170) is set to Heat
Pump.
Heating and cooling wires are shorted
together.
Heating equipment is not a heat pump
but System Type (Installer Setup
Number 0170) is set to Heat Pump.
Heating equipment is not a heat pump
but System Type (Installer Setup
Number 0170) is set to Heat Pump.
System Type (Installer Setup Number
0170) is set to Cool Only.
System Type (Installer Setup Number
0170) is set to Heat Only or Heat Only
with Fan.
System setting is not set to Heat and/or
temperature setting is not set above
room temperature.
System setting is not set to Cool and/or
the temperature setting is not set below
room temperature.
Compressor minimum off timer is
active.
The keypad is fully or partially locked.
TM
VisionPRO 8000 Touchscreen Programmable Thermostat
Set Changeover Valve (Installer Setup
Number 0190) to match the changeover
required by the installed heat pump.
Set System Type (Installer Setup Number
0170) to match the installed heating and/or
cooling equipment.
Separate the shorted heating and cooling
wires.
Set System Type (Installer Setup Number
0170) to match the installed heating and/or
cooling equipment.
Set System Type (Installer Setup Number
0170) to match the installed heating and/or
cooling equipment.
Set System Type (Installer Setup Number
0170) to match the installed heating and/or
cooling equipment.
Set System Type (Installer Setup Number
0170) to match the installed heating and/or
cooling equipment.
Set the system setting to Heat and set the
temperature setting above the room
temperature.
Set the system setting to Cool and set the
temperature setting below the room
temperature.
Wait up to five minutes for the cooling or
heating (heat pump) equipment to turn on.
Check Installer Setup Number 0670 to
change keypad locked options.
39
Action
68-0280—01