Question about Heating & Cooling
I believe these furnaces still used a fan/limit control. The fan will not come on until the heat exchanger is hot enough. Your problem most likely lies with the burner not lighting. Make sure the fan/limit control dial has turned back all the way to the correct temp, if not, replace it. The fan/limit control is inside the aluminum cover in the middle of the burner section. Also, the gas valve may be bad. See if you have 24vac at the gas valve during a call for heat. If you do and it's not opening.......bad gas valve.
Posted on Oct 07, 2009
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Posted on Jan 02, 2017
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