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I have reviewed the ladder diagram for Single Stage Furnaces and am ready to assist you with any questions you may have. The document details the electrical components and their connections, including the blower motor, flame sensor, and various limit switches. I can help you understand how these systems interact to operate the furnace safely.
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What is the purpose of the door switch?
What does the flame sensor do?
What is the function of the pressure switch?
What is the role of the various limit switches?
