Hayward Goldline ProLogic Main PCB Replacement GLX-PCB-PRO — OEM replacement board, restores automation & chlorination

The Hayward GLX-PCB-PRO is the direct replacement main printed circuit board for Hayward Goldline ProLogic automation and chlorination control systems.

If your Goldline AquaLogic or ProLogic controller is experiencing faults, intermittent operation, or won’t power up, replacing the main PCB often restores full functionality without replacing the entire unit. This genuine Hayward board is engineered to fit several Goldline/AquaLogic models and maintains compatibility with the factory connectors and firmware interfaces used in automation and chlorination panels.

Which Hayward control models does this PCB work with?

The GLX-PCB-PRO is compatible with a range of Hayward Goldline and AquaLogic automation and chlorination controllers. It’s built to match the mounting points, connector layouts, and signal assignments of the original factory boards for these models.

• Fits AQL-PS-4 and PL-PS-4 style controllers
• Compatible with AQL-PS-8, AQL-PS-8-V, and PL-PS-8 units
• Works with AQL-PS-16 and AQL-PS-16-V automation panels

How do I know this is the right replacement for my failed board?

Confirming compatibility requires checking the model number printed on your controller housing and comparing connector positions. The GLX-PCB-PRO was produced as a direct Hayward replacement, so if your unit is one of the listed models, this board is a match in most cases.

• Verify the controller model label on the panel exterior
• Compare connector count and layout against the new PCB images/specs
• Check that mounting holes and terminal strips align with your enclosure

What does installing this PCB restore or enable?

Replacing a defective main PCB typically brings back core automation functions such as scheduled equipment control, timed pump and valve outputs, and chlorinator command ability. Since this is an OEM part, it preserves the original control logic and interface behavior expected by Hayward systems.

• Restores timed relay outputs for pumps and valves
• Re-establishes chlorination control signals and safety interlocks
• Maintains original diagnostics and indicator compatibility

Are there any installation tips or precautions?

Installation is straightforward for technicians familiar with pool automation, but always power down and disconnect the controller before starting. Handle the PCB by its edges, avoid static discharge, and double-check wiring labels when reconnecting sensors, power, and relays.

• Turn off and lock out power to the control panel first
• Document or photograph wiring before removing the old board
• Use anti-static precautions and tighten terminal screws to spec

Who is this for: The Hayward GLX-PCB-PRO main PCB replacement is intended for pool service technicians, installers, and homeowners maintaining Hayward Goldline/AquaLogic ProLogic automation and chlorination systems. It’s the right choice when diagnostics point to a failed control board but the rest of the controller and peripherals are in good condition—offering a cost-effective way to return your equipment to factory behavior while preserving existing wiring and components.