Jacuzzi HN250C/400C Sensor (70276) is a replacement service part for replacement sensor for compatible Jacuzzi HN250C and HN400C heater systems. This component helps restore the fit, function, or control expected from the original Jacuzzi Whirlpool Bath equipment when the installed part is worn, damaged, missing, or no longer operating correctly.Use this part when the original sensor has failed or has been identified during troubleshooting as the cause of heater performance issues. Confirm heater model, sensor location, wiring connection, and diagnostic results before purchase. For best results, compare the existing component, equipment model, and installation requirements before ordering or beginning repair work. Replacement part for compatible Jacuzzi Whirlpool Bath equipment Designed for the listed model or application shown in the product title Useful for repair, rebuild, or routine service work Helps restore proper fit, operation, or equipment appearance Verify part number 70276 before purchase