Hayward HAXGSV0003 Gas Valve - 150 to 400 Liquid Propane Millivolt

What This Part Is Used For
The Hayward HAXGSV0003 Gas Valve is used in H Series heaters rated 150 to 400 and configured for liquid propane millivolt systems. It controls the flow of LP gas to the burner assembly.

Why This Part Matters
A faulty gas valve can prevent ignition or cause unsafe flame conditions. Replacing the valve restores proper gas regulation and safe combustion. Reliable gas control is critical for heater startup and consistent heating output.

Key Features and Specifications

• Genuine Hayward gas valve
• Manufacturer part number: HAXGSV0003
• For 150 to 400 H Series heaters
• Liquid propane configuration
• Millivolt system compatible

Installation and Fitment Guidance
Gas supply must be shut off and verified safe before replacement. Confirm by manufacturer part number before ordering.

About the Hayward Brand
Hayward heaters are engineered for dependable gas-fired performance. Their gas control components are built for safe regulation. Genuine Hayward valves ensure compatibility with factory burner systems. Service technicians rely on Hayward for trusted heater parts.

Common Service Context
Frequently replaced when diagnosing ignition failure, flame drop-out, or gas regulation issues.