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Troubleshooting Assistance Guide
Customer Service Toll Free 1-888-232-5949 35
Thermostat Display
(continued)
Display numbers/segments are fading out.
The thermostat requires service. Call Customer Service toll free at 1-888-232-5949.
Programming
Temperature setting will not go lower or higher.
• The upper or lower thermostat temperature setting limits may have been reached.
Lower limit is 45 and the upper limit is 90.
• Check to ensure that you are not in programming mode. Press the RUN button once
until the normal display appears. Try to change the temperature again.
If neither of the above helps, the thermostat may require service. Call Customer Service
toll free at 1-888-232-5949.
Thermostat program has disappeared.
Ensure that someone else has not changed the program. If no one else has changed the
program, the schedule may have been lost. The thermostat’s schedule is stored in a non-
volatile memory. The thermostat may have sustained a large electrostatic discharge,
erasing its memory. In this case, the default setting will be displayed in the programs.