Hayward Wiring Harness, FDXLWHA0001

Hayward Wiring Harness FDXLWHA0001

The Hayward FDXLWHA0001 is a complete wiring harness assembly kit designed specifically for use with Hayward’s Universal H-Series Low NOx pool heaters. It serves as the central wiring backbone—bringing power, signal, and control connections together—to restore the electrical integrity of the heater system.

Key Features

Full wiring harness kit – Includes all major wires, connectors, and pre-terminated paths required for the specified heater models.

Designed for Universal H-Series Low NOx heaters – Specifically compatible with models such as H150FDN, H150FDP, H200FDN, H200FDP, H250FDN, H250FDP, H300FDN, H300FDP, H350FDN, H350FDP, H400FDN, H400FDP (for certain manufacturing dates).

Pre-wired & factory cut – Simplifies replacement by providing a harness ready to install, reducing rewiring mistakes and downtime.

OEM grade – Genuine Hayward part number ensures correct fit, function, and compatibility with the original equipment’s layout.

Helps restore safety & reliability – Replacing a damaged or worn harness can prevent wiring faults, electrical shorts, erratic behavior and maintain the performance of the heater.

Used On

• Hayward Universal H-Series H150FD Low Nox Heater Parts 
• Hayward Universal H-Series H200FD Low Nox Heater Parts  
• Hayward Universal H-Series H250FD Low Nox Heater Parts  
• Hayward Universal H-Series H300FD Low Nox Heater Parts  
• Hayward Universal H-Series H350FD Low Nox Heater Parts  
• Hayward Universal H-Series H400FD Low Nox Heater Parts  
• Hayward Universal H-Series H500FD Low Nox Heater Parts