I need to know how to fix furnace no heatproblems. Everyone is giving me a literal cold shouldernow. Make sure the thermostat is set for hotterthan it is right now. Of course it is. If the thermostat is out of calibration orthe metal strip in it is bent so far it has to bend farther to reach the on switch forthe furnace, it thinks right now youre warm enough and wont turn on until it thinksit is ten degrees too cold. You want me to set it to 80 so it heats thehouse to 70. Just rule out that it is or isnt the thermostatbefore you start calling in expensive HVAC repair people. I might as well turn it off and back on totry to fix it. You can do the same thing too, if the furnaceis erroring out and thats why it wont run. I didnt think to see if the control boardhas any error messages.If it gives you any error messages like heyI dont have enough air intake, sensors say I shouldnt be running or electricalshorts, you will then know why it isnt running. What do I do if there isnt an obvious errormessage? If there is a wiring short or detached wiringfrom the control board to the ignition, it wont be able to ignite. If I have a wiring short, it could short outand burn up. If it has a loose connection or broken connectionto sensors, it thinks it shouldnt ignite or turn off.Thats almost what I want to have it be,because it is easy to fix. Then theres the possibility it is tryingto run but cant stay running because there is a problem. Like what kind of problem? It is overheating because it gets too muchair or has too much gas coming in, so it turns on, overheats and turns off. Thats like a flame sensor that is defectiveor dirty, so the furnace turns on and almost as quickly turns off. You can clean the flame sensor gently witha metal scrub pad. It is hard to imagine scrubbing it gently. If you break it, youll need to replaceit. Or I can replace it now. That is necessary if it has cracked or otherwisebroken. I cant imagine how it got broken. The last time someone replaced it, they brokeit against some metal piece in there. Or the last time they moved it closer to theflame to make sure the furnace recognized the flame was on they broke it.The flame sensor thus could be why the furnacewont run long, because it thinks the flame isnt running. Then there is the possibility it is runningbut not very well. I cant imagine how. If there are leaks in the air distributionsystem, that could cause it. So could blowers not working to distributeheat through the system. I’d notice that from the silence. So the issue is down to problems with thegas supply or valve to control it or sensors controlling the system. All of which I want a professional to lookat..
Welcome back to Kung Fu maintenance! Wanted to let you know, show you, about one Ihad the opposite day. What happened was proper at the end of theday I noticed that there used to be a work order for a no heat call. Went and checked it out. The hydronic valves had been turned off and turnedthose on. Came visiting to the thermostat and became iton but nothing became on.I could see. The flame signal here. Very like this one. Now usually while you do it you’re going to hear thelittle click on when it turns on. On that certain one I did hear the clickand that type of signified to me that the thermostat used to be working. I grew to become the fan to on. The fan kicked on. I became the A/C on and the AC kicked on.Grew to become it to chill and auto. Diminished the temperature down and everythingkicked on there correct away. So I knew at that factor that it wasn’t theservice door change. Didn’t be aware of what it was however what I did waspullk the duvet off. Now earlier than I do that I want to exhibit you thelittle click on. I will lift my temperature up so the heaterwill activate a bit of bit. You hear that click on? That is signifying that my unit is gettingready to stir up because the heater has now been signaled to activate. However beneath. I’ll show you right here. What you may have bought is your pink bloodless jumperand the purple scorching jumper wire. That fatter red wire that’s again there.I bought variety of fortunate and observed right awaythat the insulation phase, even so much adore it is right here, the insulation component used to be up insidethe screw port. So All I had to do was once loosen the screw alittle bit. Transfer the wire down a tiny bit in order that thewire was absolutely making contact with the screw port so we’d have continuity. And that’s all it used to be. The screw alternatively of clamping the wire downwas clamping the insulation down. Insulation used to be making contact so that theheater wasn’t turning on despite the fact that it was once sending the call for warmth from the thermostat. It wasn’t being transmitted by way of the hotwire so. First-class convenient fix.Concept i might show it to you guys. Hope it saves you some concern.You already know. It is infrequent but these are the matters that happenand a little bit bit on the troubleshooting that happens. Certainly if a wire will not be making contactthere things are not going to activate. And one thing more I had checked on thiswhich must be checked when a thermostat is not working. One thing to investigate on theses is the jumperpin or the switch setting. This one has a bit of switch down right here whereright is for gasoline heating and left is for electrical heating. That specific one was once set for electrical heatingwhich is common to all of my different items for hydronic heating.So it wasn’t that. So once more it used to be that insulation that used to be blockading. In order that the wire wasn’t making contact onthe RH wire. Anyway. Thanks for staring at!.