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My 2005 2955rl did the same thing. After replacing the remote thermostat with CCC digital thermostat I noticed our furnace would run almost continuous. After some investigation into the problem I found a cold draft coming down inside the wall the thermostat was installed on. Also, the heat register below it was not helping matters any. I found a magnetic cover to cover the register and also placed some insulation material between the thermostat and the wall it was mounted on. Keystone makes some big holes to pull the wires through and that is probably what is causing the thermostat to cycle frequently. By doing both of these steps I was able to reduce the frequency of the furnace cycling. I used a foam shipping envelope and cut out the form of the CCC thermostat to form the insulation behind the thermostat. I have been extremely happy with that resolve.
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