R0592300 | Jandy High Limit Temperature Sensor Kit for JXi Heaters

OEM Jandy High Limit Temperature Sensor Kit R0592300 is a critical safety device for Jandy JXI pool and spa heaters, engineered to detect and respond to excessive water temperatures. This dual-sensor kit includes one sensor at the heat exchanger's first pass, set to activate at 135°F (57°C), and another at the outlet, set to trigger at 150°F (65°C). If either sensor detects temperatures above safe limits, the gas valve shuts off and combustion halts to prevent overheating. Built to OEM standards, this kit protects your heater and ensures safe, long-term operation.

Note: To identify the correct part, you will need to know the model number, serial number and type of gas when applicable. This information can be found on the rating plate sticker, which is located inside the heater on the outside of the combustion chamber.

• Inspect vent for obstructions or blockages.
• Indoor installations, check vent pipe for bird, insect or rodent activity that could cause a blockage. 
• Replace switches. 
• Refer to qualified service personnel.

Highlights

• Essential Overheat Protection: Prevents dangerously hot water from being discharged by monitoring internal heater temperature

• Dual-Point Temperature Monitoring: Includes two sensors placed at key heater locations for accurate detection at 135°F and 150°F thresholds

• Built-In Safety Shutdown: Automatically halts combustion and closes the gas valve when temperatures exceed preset safety levels

• Defends Heater Integrity: Shields your heating system from overheating damage and promotes longer service life under demanding use

• Tailored for JXI Systems: Designed exclusively for Jandy JXI heaters to ensure precise fit and dependable thermal safety response

Compatibility

• Jandy JXi Heater Models: JXi200N, JXi200NK, JXi200P, JXi200PK, JXi260N, JXi260NK, JXi260P, JXi260PK, JXi400N, JXi400NK, JXi400NN, JXi400P, JXi400PK, JXi400PN, JXi260NC, JXi260PC, JXi400NC, JXi400PC

Additional Info

R0592300 High Limit Sensor Kit – For Jandy JXI Heater Protection

in-stock R0592300 available for walk-in heater service needs

includes dual sensor switches for JXI high limit control

fits JXI200, JXI260, and JXI400 gas heater models

install R0592300 when heater shuts down due to over-temp

buy in-store to replace safety limit sensor on JXI heaters

Jandy Heater Temperature Safety Kit R0592300 – Dual Sensor System

sensor one trips at 135°F, sensor two at 150°F – part R0592300

R0592300 shuts off gas valve when overheating is detected

restore safe operation with new JXI sensor switch kit

walk-in techs recommend R0592300 for safety code resets

helps prevent water from reaching unsafe temperatures

JXI Heater High Limit Sensor R0592300 – Reliable Overheat Prevention

stops combustion if flue or exchanger temps go too high

replace R0592300 if unit gives high limit switch fault

fits JXi200NK, JXi260PC, JXi400PK, and more

trusted part for high-temp error resolution

available in-store for urgent Jandy heater repairs

Diagram