Good morning. I woke up and it was chilly in our house. The furnace was blowing cold air. I grabbed my voltmeter and went downstairs. The limit switch had tripped and was stuck. I called an hvac place and they wanted 260 to come and change it. I said no thanks and took the switch out and tapped it a few times until it read good. It worked and we have heat. I'll go tomorrow and buy a switch for $30.
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