Jandy | R0592300 | Pro Series High-Limit Temperature Sensor Kit

The Jandy R0592300 High-Limit Temperature Sensor Kit is a genuine OEM replacement designed for Jandy Pro Series JXi pool heaters. It monitors internal heater temperature and initiates a shutdown if unsafe high-limit conditions are detected, protecting the unit and surrounding equipment. 

Key Features

• Genuine Jandy OEM sensor kit for Pro Series heaters (JXi 200 / 260 / 400) 

• Includes dual-switch assembly: one triggers at approx. 135 °F, the other at 150 °F to safeguard overheating. 

• Monitors high-limit conditions and shuts off gas or burner operation to ensure safe heater performance. 

• Compact, direct-fit design for quick replacement in existing heater configurations. 

• Warehouse-ready part with shipping weight around 1.0 lb. 

• Compatible with both natural gas and propane configured units (verify fuel type and model). 

Product Overview
The Jandy R0592300 High-Limit Temperature Sensor Kit is a critical safety component for maintaining reliable and safe operation of Jandy Pro Series JXi pool heaters. Operating under harsh conditions including elevated heat, pool chemicals, and recurring thermal cycles, high-limit sensors play a vital role in preventing damage due to overheating or blocked ventilation systems. Over time, the factory sensors may drift or fail, which can result in heater shutdowns, inefficient operation, or unsafe conditions.

With its dual switch configuration (typically 135 °F and 150 °F thresholds), this kit provides layered protection by triggering shutdowns before the heater reaches damaging temperatures. Installation is straightforward for qualified technicians: the sensor kit is a direct replacement that restores original equipment safety performance. Integrating this OEM part into your maintenance workflow helps ensure compliance with manufacturer specifications and supports long-term system reliability and pool owner confidence.