My Carrier "Comfort Zone" 4 zone thermostat has an option area that is specific to installation/service. I cannot find any model number but the circuit board does contain the letters CZCT rev. 1.3 on it. My question is rather simple, I cannot set the HEAT temp below 65F. My thought that this restriction is programmed someplace in the "Options Area". I need for my vacation mode to go below 65F and I cannot completely shut the system down or risk a freeze. Any help greatly appreciated as I can find nothing on Carrier's WEB.
Mike
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