Sensors

Fluctuating spa temperature or a flashing ready light often points to a failed sensor rather than a heater problem. Shop genuine Hot Spring high-limit sensors, control thermistors, and O-rings, and remember to replace them in matched pairs to keep your spa's temperature readings accurate and your heater operating safely. Mismatched or aging sensors can cause inconsistent heating, nuisance fault codes, or even prevent your spa from heating at all. Genuine, OEM-matched sensors restore precise temperature control and help your control system communicate accurately with the heater.

All parts are OEM-quality and designed to meet the specific requirements of your spa model. Whether you're upgrading your system or replacing a faulty component, Prisco Hot Spring provides the parts and support you need for a reliable spa experience.