Question about Honeywell Electronic Programmable Heat/Cool Thermostat - CT3300A100 Heater

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Honeywell Pro 5000 wont bring Heat on

Even though we set the thermastat up for the heat to come on, it does not. When in Cool position, the heat comes one although all wires are connected as instructed.

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  • smityville Oct 19, 2008

    Heat will not come on when it worked yesterday.

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Have you programed the tstat for your system? look at your installers book.

Posted on Oct 20, 2008

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