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Rheem-Ruud 47-25117-01 Limit Switch How do I ensure aThe Rheem Ruud 47 25117 01 Limit Switch is a critical safety component designed for precise temperature control in furnace and HVAC systems. This OEM replacement part features a Single Pole Single Throw (SPST) configuration and is normally closed during standard operation. Built for durability, it functions as a high limit safety, safeguarding the heat exchanger from damage caused by restricted airflow or overheating. The switch is calibrated to a
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