OEM Hayward High Limit Kit FDXLHLI1930 is a vital safety component engineered for FD H-Series Low NOx heaters, designed to shut down the system if internal temperatures rise above safe operating levels. This high-quality kit prevents overheating that can damage heater components and compromise performance. Built with durable, heat-resistant materials, it offers long-term reliability in demanding pool environments. Whether used during routine service or emergency replacement, this high limit kit helps preserve your heaterÕs safety, functionality, and efficiency.

• OEM Safety Solution for FD Heaters: Specifically designed for Hayward Low NOx models to regulate safe temperature thresholds

• Automatically Shuts Down When Overheating: Interrupts heater operation if temperatures exceed limits, helping prevent system damage

• Constructed for Long-Term Reliability: Made from high-grade materials to endure repeated thermal cycling and exposure to harsh conditions

• Ideal for Routine Maintenance or Emergency Use: Ensures heater remains operationally safe during both preventive service and urgent repairs

• Preserves Heating Efficiency and Lifespan: Critical to maintaining consistent performance and protecting internal components from heat stress

• Hayward H-Series Heaters Models: H150FDN, H150FDP, H200FDN, H200FDP, H250FDN, H250FDP, H300FDN, H300FDP, H350FDN, H350FDP, H400FDN, H400FDP, H500FD
  

Troubleshooting Overheat and Shutdown Problems

heater shuts off before reaching set temp

h300fdn overheating and tripping high limit switch

heater wonÕt restart after short run cycle

overheating error code replace fdxlhli1930

safety shutoff triggered by temperature spike

In-Store Purchase and Installation Help

buy hayward fdxlhli1930 high limit kit in-store

walk-in part for fd series heater overheat issues

quick install high limit switch for h-series heaters

heater shutdown fix available at retail location

local support replacing failed high limit sensor

Compatibility With FD H-Series Models

fdxlhli1930 fits h150fdn to h500fd heater range

does this high limit kit fit my hayward h400fdn

compatible with propane and natural gas heaters

confirm fitment before in-store high limit kit purchase

part number match for h-series heater temperature limit