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My furnace stopped working today. It will turn on for a few seconds and then back off again, occasionally turning on for closer to a minute. The lights indicate that a limit switch is open. I've read enough where I think I can figure out if the limit switch is the problem by taking out the wires and bypassing the switch to see if it works and then just get a new limit switch. I don't know what the limit switches are, however. Can anyone tell if this is a good idea, and where in the attached pictures the limit switches are that I should be testing?
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