Question about Honeywell Programmable Thermostat Heater

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Model ct3600 thermostat not working

As I was setting tempertures, I hit run program and it continued to say set program. I then tried to replace the batteries and now I have nothing on the thermostat. Any thoughts. We did try to reconnect the wires and that did not do anything. The screen is still blank

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I know it sounds simple but the batteries are probably in the wrong direction. If they are correctly installed and fresh you will usually get a display.

Posted on Nov 14, 2008

  • johnsdsl Nov 14, 2008

    of course when you tried to reconnect the wires you may have burned your transformer out or popped a fuse. If the R and C wires touch for even a split second this is usually the case.

    Digital Thermostats are just small computers and they do break. When they do, the problem can manifest itself in any number of ways; erratic operation and just acting wierd can be some of them.

    If you have 24 or so volts to your thermostat from the transformer and/or fresh batteries or a circuit back to the common side of the transformer then the thermostat display should be showing...if no joy and you are sure there is power to it then I would replace it.



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