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I have a york furnace, not sure of age, but it is an 80%er gas. When you turn the heat up, the burners light up and you can see the fan limt switch rise, however the blower motor never start blowing,...

When using a cell phone that has internet capability. If it is a wi fi capable phone, do you have to buy the data plan, or can you just use the wi fi if you are with in range of a signal. And if so,...

Changing the board today. I will let you know what happens. The gas valve was getting correct voltagewhen flame was there and showed no voltage when the flames were not present. The flame sensor is...

I did jump the t-stat terminals together, and it did the same thing. The furnace is a trane xl 80. Model # is tud120b96oao Tomorrow I want to check the gas valve out. There are 3 leads that go into...

How do I check if the gas valve on my furnace is not working properly. Is there a voltage test I can do on it, and if so, what leads do I put my meter on.

Its not a problem with the flame sensor. It appears to be working properly. Before the burners turn off, the relay on the gas valve clicks a few times and then they go out. How do I check to see...

Have a gas forced air furnace. Not sure of the name brand. When it calls for heat, the burner kick on, but won't stay on. They will burn for a short period, then they will turn off. The fan motor...

I changed the fan limit, but to no avail. I should have been smarter, because after I changed it I then realized that the heat exchanger temperature is not even getting very hot before the burners...

It was. It just started doing this on Friday. I will replace the limt switch and go from there. Thanks again.

The filter is brand new. How can I check if there is enough return air. I will check if there are any vents that are closed. Thank you for you help.

Gas furnace, 80% effiency. Not sure of the name brand. When furnace is running for a little while, the burners will kick off while the blower motor keeps running. After a short time the burners...