Honeywell VISIONPRO TH8320 User Manual download pdf (Page 39)

VisionPRO

8000 Touchscreen Programmable Thermostat

39 68-0280—01

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.

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.

“Screen Locked” appears on

the screen and all or some of

the keys do not respond.

The keypad is fully or partially locked. Check Installer Setup Number 0670 to

change keypad locked options.

Table 14. Troubleshooting. (Continued)

Symptom Possible Cause Action

1 2 ... 34 35 36 37 38 39 40

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Honeywell VISIONPRO TH8320 User Manual Page 39

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