Jandy | R0458600 | Flame Sensor Rod – Pro Series / LXi Heaters

The Jandy R0458600 Flame Sensor Rod is a genuine OEM replacement rod designed for use in Jandy LXi (Low NOx) and Pro Series pool and spa heaters. The rod detects flame presence to ensure proper burner operation and heater safety, enabling reliable ignition and combustion performance. 

Key Features

• Genuine Jandy OEM replacement sensor rod, part number R0458600. 

• Compatible with LXi heater models including LXI250 and LXI400, and other legacy Pro Series models as indicated. 

• Constructed of stainless steel sensing rod designed for high-temperature flame sensing. 

• Detects the presence of flame within the heater combustion chamber; triggers shutdown if no flame is sensed, improving safety and preventing gas flow during mis-ignition. 

• Direct-drop replacement ensures fitment and compatibility with original equipment housing and wiring. 

• Lightweight, compact part (approximate shipping dimensions 6" x 4" x 6", weight ~0.24 lb) facilitating easy handling and installation. 

Product Overview
The Jandy R0458600 Flame Sensor Rod plays a critical role in the burner control system of pool and spa heaters by verifying that the ignition flame is present after the gas valve opens. If the sensor fails or is out of specification, the burner may attempt ignition repeatedly, lock out, or fail to ignite altogether, increasing maintenance downtime and reducing system reliability.

This OEM-specified rod restores original reliability and compatibility for LXi/Pro Series heaters, ensuring the flame detection circuit operates per manufacturer standards. During service, replacing this sensor rod is recommended when experiencing repeated ignition faults, flame loss, or after combustion chamber maintenance when the original rod may be damaged, bent, or contaminated. Installing the R0458600 ensures proper fitment, extends heater life, supports safe operation and helps maintain warranty compliance.