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Troubleshooting Assistance Guide
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Programming
(continued)
The house is too warm or too cold.
• If the setpoint equals the room temperature, press the UP/DOWN arrow buttons to
adjust the setpoint temperature as desired for a temporary hold. If discomfort occurs
frequently, reprogram to higher/lower temperatures for desired comfort or change
operating mode to obtain a better match between energy use and desired lifestyle.
• Check to ensure that the thermostat is in the correct HEAT or COOL mode by
pressing the SYSTEM button. The thermostat is OFF when the display shows OFF and
both HEAT and COOL icons are displayed.
• Under excessive temperature loads (high/low outdoor temperature), even before the
thermostat was installed, was the heating/cooling equipment capable of maintaining
the desired indoor temperature setpoint? If so, the heating/cooling system may need
service or possibly an upgrade. Schedule a service call with a heating/cooling dealer
for inspection of proper refrigerant levels, airflow, etc.