Find your parts diagram
Sticker on the pump body (the part with the basket), not on the motor. Motor labels from Century, A.O. Smith or Regal won't match parts.
Label on the side of the tank near the base. Size is in sq ft, e.g. 420 sq ft = C4030 or CCP420.
Rating plate inside the front access panel. Note the BTU and gas type (NG or LP).
Molded into the body or printed on top. Robotic cleaners: on the power supply.
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R0589701 | Jandy JXi Heater 110 Degree Thermal Regulator
Fits these models (3)
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CA P65 Warning: Cancer and reproductive harm. www.p65warnings.ca.gov
The Jandy R0589701 110° Thermal Regulator Valve is a factory-calibrated replacement part for JXi pool and spa heaters, including JXiQ and ASME models. Set to regulate at 110°F, this thermal regulator ensures safe and consistent water heating by mechanically controlling internal water flow, protecting the heater from overheating and reducing thermal stress on components. Built from corrosion-resistant stainless steel, it is engineered to withstand pool and spa environments and extend the service life of your heater. Easy to install and reliable in operation, the regulator restores proper performance and helps maintain long-term efficiency of Jandy JXi heating systems.
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Precise Temperature Control: Calibrated to 110°F for accurate water heating, preventing unsafe operation and overheating.
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OEM Compatibility: Designed specifically for Jandy JXi, JXiQ, and ASME-compliant heaters for a perfect factory fit.
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Durable Stainless Steel Build: Corrosion-resistant construction withstands constant exposure to pool and spa conditions.
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Mechanical Reliability: Operates without electrical components, providing consistent protection and dependable performance.
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Protects Heater Longevity: Helps reduce wear and thermal stress, extending the lifespan and efficiency of the heater system.
- Jandy JXi Heaters
- Jandy JXiQ Heaters
- Jandy JXiQ ASME Heaters