Honeywell TB7100A1000 Installation Instructions - Page 15
Table 6. Troubleshooting. Continued, Symptom, Possible Cause, Action
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TB7100A1000 MULTIPRO™ MULTISPEED AND MULTIPURPOSE THERMOSTAT Table 6. Troubleshooting. (Continued) Symptom Possible Cause Action Heat pump puts out cool Changeover Valve (Installer Setup air in the heat mode and Number 0190) is not configured to warm air in the cool match the changeover required by mode. 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 Separate the shorted heating and cooling wires. together. 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 Fan Control in Heating is set to Set Fan Control in Heating to Thermostat Controls a call for heat (electric System Controls Fan (Setting 0180). Fan (Setting 0180). furnace). 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 Heating equipment is not a heat does not turn off and pump but System Type (Installer heat temperature Setup Number 0170) is set to Heat setting is set below Pump. room temperature (Heat On is not in the display). Set System Type (Installer Setup Number 0170) to match the installed heating and/or cooling equipment. Cannot set the system System Type (Installer Setup Number Set System Type (Installer Setup Number 0170) to setting to Heat. 0170) is set to Cool Only. match the installed heating and/or cooling equipment. Cannot set the system System Type (Installer Setup Number Set System Type (Installer Setup Number 0170) to setting to Cool. 0170) is set to Heat Only or Heat Only match the installed heating and/or cooling equipment. with Fan. Heat On is not in the display. Cool On is not in the display. Wait is in the display. System setting is not set to Heat and/ Set the system setting to Heat and set the or temperature setting is not set temperature setting above the room temperature. above room temperature. System setting is not set to Cool and/ Set the system setting to Cool and set the or the temperature setting is not set temperature setting below the room temperature. below room temperature. Compressor minimum off timer is active. Wait up to five minutes for the cooling or heating (heat pump) equipment to turn on. 15 62-0273-05