Question about Honeywell CT3200 5-2 Day Electronic Programmable Thermostat Heater

3 Answers

Honeywell 5+2 day programmable thermostat will keep heating to 29 degrees!

Hi,

I have a gas furnace and central ac.

My old thermostat could be set at 15 degrees (c) and would only shut off the furnace at 25 (c), so I purchased a programmable thermostat to replace the old one (thinking that it must be broken).

Now the new thermostat won't shut the furnace off at all. I can set it at 19 degrees (celsius) and It will keep heating to 30 (i didn't let it go any further).

Is this a furnace issue or a thermostat issue? could i have improperly installed the new one? there were only 4 wires red, black , white, green. I had an old honeywell thermostat and now a new one the wire hook ups were pretty simple looking (red to R, green to G, black to Y, white to W)

pls. help!

Bronwyn

Posted by on

  • kkaa Feb 11, 2008

    My honeywell prgrammable has been fine for 4-5 yrs. It has started to turn off the furnace before the set time, or not turn on at the time set. I took the batteries out, turned off and then reset times. It started turning on in the a.m. then turning off 3 hrs. before set time in eve. What now??? or next?

    thanks,

    k-avila@msn.com

  • ATITELMAN Sep 01, 2008

    HOOKED UP MY THERMOSTAT - WON'T TURN ON - THE ONLY THING i FOUND I COULD HAVE DONE WRONG WAS USE THE RED WIRE OR PUT THE RED WIRE IN THE WRONG PLACE - IT HAS TWO HOLES FOR THE RED PART THAT ARE J0INED BY SOME SORT OF WIRE THING - I PUT MY RED WIRE INTO THE FIRST HOLE - WAS THAT RIGHT? WHAT ELSE COULD THE PROBLEM BE?

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Our Honeywell thermostat is model RTH6300B. Now that the weather is getting hot, we decided to put the centeral air on. Hot air keeps blowing out. I called Honeywell several times thinking that we had fixed the problem. It still is blowing out hot air. Also, my husband checked the wires. Has anyone else had this problem? Any ideas what it could be?

Posted on May 29, 2008

  • Hal Taylor
    Hal Taylor Oct 06, 2012

    is it a heat pump? -- if so,sounds like the reversing valve is not functioning

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The screen if faded on the thermostat

Posted on May 15, 2008

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Is sounds like you wired it correctly, The black is a little unusual perhaps its blue, anyway, try disconnecting the wires from the thermostat and see if it shuts off. If so, then it may need to re calibrated. I will need some more info to help you anymore.

Posted on Dec 23, 2007

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Posted on Jan 02, 2017

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