Hayward Universal Bypass Cartridge Kit (FDXLBPK1930) grasslin the power supply may be

the power supply may be part of the repair path after confirming the cleaner and cord are in good condition

and R185B heater applications where the supported user-adjustment control needs replacement

and this Darlly cartridge is designed for compatible applications referencing FC-4015

and equipment-routing configurations

A weir door like this is useful because it helps restore proper skimming action at the entry point of the assembly

Hayward Universal Bypass Cartridge Kit (FDXLBPK1930) grasslin the power supply may beDesigned for precise service work on compatible Hayward heating systems, Hayward Universal Bypass Cartridge Kit helps restore the fit, sensing, flow, or combustion support needed for dependable heater operation. It is a practical replacement choice when an existing component is worn, damaged, or no longer performing as it should. Pool heaters rely on tightly matched internal parts to manage heat, airflow, water movement, and safety controls. Using the