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  1. #1
    Join Date
    Mar 2005
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    My Honeywell Chronotherm IV Plus programmable thermostat appears to be stuck. No matter what temp I program, the thermostat will not read higher than 66 degrees. However, the furnace is producing heat.

  2. #2
    Join Date
    Jun 2004
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    if it is fact higher than 66 degrees than get a new stat

  3. #3
    Join Date
    Mar 2002
    Richmond, Virginia
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    Measure the temperature near the thermostat with another thermometer to verify that it is indeed 66. Unless you're experiencing extremely cold weather there you should check your air filter to be sure it is clean. If it is you should call a service company and have your system checked.
    There is nothing more frightful than ignorance in action....Mark Twain

  4. #4
    Join Date
    Apr 2004
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    Put a lamp or another souce of heat under it and see if it rises.

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