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Heater Sensors & Thermals

Heater sensors and thermal components are essential safety and control parts that regulate spa water temperature and prevent dangerous overheating. This category includes temperature sensors, high limit sensors, pressure switches, flow switches, mechanical hi-limit switches, and thermostats. When one of these components fails, your hot tub may stop heating, display error codes, or shut down unexpectedly. Spa Guy Parts stocks a comprehensive range of heater sensors and thermal parts for most major spa brands. Free shipping over $75.