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Furnace is not working after changing thermostat

Furnace was working, thermostat had a broken up arrow that would only allow you to turn the temp down, not up. Swapped Thermostat with new one, but furnace wouldn't respond afterwards. I re-installed original thermostat but furnace is not responding at all.

Posted by Chuck Hoodak on

  • Chuck Hoodak
    Chuck Hoodak Dec 01, 2013

    The furnace is NOT a whirlwind. It is a Williamson Temp-O-Matic model 1114-10

  • Amanda Drew
    Amanda Drew Nov 02, 2017

    That's weird that when you switched out your thermostats they have just stopped working. My own furnace refuses to pump out hot air no matter what I do. It isn't good, especially because winter is coming. The two of us will probably need to find someone who does heating repairs to fix our problems. http://www.mitchellplumbing.com/heating-...

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vasilebaran

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The thermostat have 2 connection(1 normal open connection and 1 is normal open connection),and it necesary to put your conection on open connection.

Posted on Dec 02, 2013

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I have a proselect thermostat psts11p52 that's 3 months old. So is the furnace. The AC works fine. Today i set the heater because it's cold and the temp stays at 68. These are my steps. - switch to...


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I guess your thermostat could blink whether its mode is satisfied or not because I am not familiar with that particular stat. You forgot to say if the furnace is gas or electric heat, so if its gas, it sounds like it could have misfired and locked itself out. Go to the furnace, and cycle the power switch that should be mounted on the side. This will reset the controller and give it another attempt at firing correctly. If it continues to lock our after several attempts and you still have no heat, you have no choice but to call for service.

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I turned my thermostat down this morning to 68 degrees. I came back about 2 hours later to increase the temp to 70 degrees but when I push the ^ arrow instead of showing the increase to 70 it just flashes...


Since it's within 2 degrees of your setting it could be one of two things. Most furnaces run longer (pass your setting) to maintain the setting you made. Which really not a problem. However, your thermostat may need calibrating. To test this theory, place a regular wall thermometer next to your furnace's thermostat and see if the two temps match when the furnace cuts on and then when it cuts off.
If the temps are both the same, the furnace thermostat is fine.

If you're turning it down to 68, because no one will be at home during the day, just set it 2 degrees cooler than 68 degrees. You will then wind up with 68 degrees.

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SO basically my furnace just stop kicking on the heat at some point last night. I have it set on an auto temp around 70. By the time I noticed it being cold in the house I went up to the thermostat and...


I want you to do a simple test to verify that this is a thermostat problem for me. Start by removing the thermostat from its' mounting, next locate the red and white wire terminals place a jumper between them. If the heater now runs it is the thermostat went bad on you, if it does not run please check all connections both to the thermostat and to the furnace making sure that your wires have tight connections and are not broken. I am really leaning towards the thermostat being bad here. Sorry for the bad news but really strong feeling. Good luck

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