Question about Heating & Cooling
First thing to try is to cycle the power off for a few minutes and then back on...for some that will take them out of the lockout.
If that does not work then you will need to find the high limit switch...depending on the model, which you did not give, the high limit will be a round thermodisc that has a little red button in the center. Push the red button back in and you'll be good. The thermodisc is usually near the fan somewhere...
A few furnaces have a high limit that will not reset and will need to be replaced...Most have the type that will reset and all you have to do is reset it from the lockout...
The next thing you'll need to do is to find out why it went out in the first place.... A power outage while running will do it...or the blower motor failing...
Those are the common problems.....but an air flow restriction such as closed supply vents or a plugged air filter can also do it...
Posted on Nov 10, 2010
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Posted on Jan 02, 2017
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