Hayward High Limit Kit for FD Series Heaters | FDXLHLI1930

Description

The Hayward High Limit Kit (FDXLHLI1930) is the OEM replacement high limit assembly for Hayward FD Series heaters.

IMPORTANT: PROFESSIONAL SERVICE REQUIRED
Gas and electrical heater components must be serviced by a licensed pool professional or qualified HVAC technician. Do not attempt to service gas or high-voltage components without proper certification.

The high limit kit provides over-temperature protection for the heater, shutting down operation if water temperature or heat exchanger temperature exceeds safe operating thresholds. Replacing a failed high limit restores the heater’s ability to detect and respond to overheat conditions, protecting both the equipment and the pool system.

Specifications

Poolaroo Pro Tip

Before ordering, confirm your heater’s model number from the rating plate — typically located on the side or back panel of the unit. High limit components are model-specific; installing an incorrect kit may prevent the safety circuit from functioning properly. Have a licensed pool technician or qualified HVAC professional perform the replacement to ensure the safety circuit is correctly tested after installation.