Product overview This replacement FM ignitor kit is a directfit part for HSeries pool heaters, part number FDXLIGN1930. It restores the ignition function so the heater lights reliably and returns the system to normal operation. Key benefits Restores heater ignition quickly and reliably, reducing downtime and avoiding full unit replacement. Direct compatibility with HSeries pool heaters that use the FM ignition system, minimizing fitment and wiring issues. Compact design sized to match the original ignitor for straightforward installation in the existing mounting location. Engineered to match original form and function for consistent ignition performance during startup cycles. Durable construction intended for long service life under typical pool heater operating conditions. What this product does Replaces a worn or failed FM ignitor assembly to reestablish spark generation and reliable burner ignition. Solves common startup failures without requiring extensive troubleshooting or replacing the entire heater control assembly. Compatibility and identification Compatible with HSeries pool heaters that use the FM ignition system. Identified by part number FDXLIGN1930 for correct replacement. Performance and materials Designed to match the original equipment in size and connection layout for a secure, correct fit. Built from materials appropriate for ignition components to maintain consistent spark and heat resistance. Installation and maintenance Intended for technicians or homeowners familiar with pool heater and basic gas appliance safety procedures. Typically installed in the same mounting and electrical connections as the original ignitor to keep time minimal. Practical use scenarios a failed ignitor that prevents the pool heater from lighting during the start sequence. Keep as a spare part for seasonal maintenance to reduce downtime during peak pool use. Service and work by pool technicians restoring ignition on HSeries heaters after component failure. Note Verify heater model and FM ignition configuration before ordering to ensure compatibility with part number FDXLIGN1930.