The Hayward H-Series 1016-400 Control Module is a heater replacement part from Hayward Pool Products designed to support proper heater operation. It is intended for pool, spa, bath, cleaner, heater, pump, plumbing, or equipment repair situations where matching the correct replacement part matters. Help maintain safe, reliable heating performance, especially when the existing component is worn, damaged, leaking, brittle, corroded, or no longer operating as expected. Match the part number and model reference to your existing equipment before ordering. Heater components should always be matched by model family, fuel type, voltage, airflow path, gasket style, or control configuration shown on the equipment label. Correct replacement helps maintain combustion, airflow, ignition, sensing, or control function and supports reliable heater operation after service. Because many pool and spa parts look similar across model generations, compare this item against the original component, equipment label, manual, and connection style before completing the repair. This helps ensure the replacement supports the intended function and fits the surrounding assembly properly. Brand/manufacturer: Hayward Pool Products Product category: Heater Parts Designed for replacing or servicing the matching hayward h-series 1016-400 control module Helps help maintain safe, reliable heating performance Confirm compatibility using the model details and part number IHXMOD1931