Jandy R0524300 Fusible Link | Vent | LXi | JXi | Legacy LRZ Heaters

OEM Jandy Vent Fusible Link R0524300 is a critical high-temperature safety link used in Jandy JXi, LXi, and Legacy LRZ heaters. This component is calibrated to react at 240 degrees Celsius, shutting off the heater system during extreme thermal conditions to prevent internal damage or fire risk. It’s designed to provide a fast and accurate response to unsafe exhaust temperatures, offering a final layer of protection for your equipment. Trusted across multiple Jandy heater lines, this fusible link helps maintain the reliability and operational safety of your heating system over time.

Highlights

• Shuts Heater Off at 240°C: Reacts rapidly when vent heat surpasses safe thresholds, ensuring timely shutdown of the system to prevent escalation

• Designed for Exhaust Safety Compliance: Integral to the heater’s safety system, helping to meet temperature safety requirements and avoid catastrophic failure

• Compatible with Jandy’s Core Heater Series: Seamlessly integrates into JXi, LXi, and Legacy LRZ units for consistent performance across product generations

• Enhances Long-Term Heater Safety: Prevents potential damage caused by exhaust overheating, protecting key components like sensors and control boards

• OEM-Certified for Dependable Results: Produced to Jandy’s original standards to ensure precision response, reliable performance, and safe operation

Includes

• (1) Jandy R0524300 Vent Fusible Link

Compatibility

• Jandy LXi Heaters
• Jandy JXi Heaters
• Jandy Legacy LRZE Heaters
• Jandy Legacy LRZM Heaters

Additional Info

240°C Fusible Link R0524300 – Jandy Vent Safety Shutdown Component

part R0524300 supports flue overheat protection in gas heaters

used in LXi and JXi models to prevent unsafe exhaust temps

sensor shuts down heater in case of high flue gas temperature

trusted by pool techs for vent-related safety service

compatible with both residential and commercial Jandy heaters

Heater Thermal Link R0524300 – For JXi, LXi, LRZE, and LRZM Models

replace fusible link R0524300 if heater is tripping due to vent temp

mounted inside exhaust area of Jandy heater cabinets

activates when heat exchanger venting exceeds safety rating

fits multiple gas heater types from 2007 onward

protects against vent blockage and backflow overheating

R0524300 Safety Fuse – Prevents Heat-Related Heater Failures

heater running hot near vent? R0524300 may be the issue

part breaks connection to shut off gas valve and ignition

compatible with most Jandy vent sensor assemblies

fuse link critical for preventing thermal runaway conditions

part must be replaced if blown—no reset available

Diagram