The Rinnai U245-500-F-HX01 Water Heater PCB, V2532FFU, is an electronic control board designed to regulate the operation of compatible Rinnai water heaters. It processes signals from connected sensors and system components to manage ignition, burner operation, temperature regulation, and safety functions throughout the heating cycle. Installed inside the control compartment, the PCB c... https://www.hnkparts.com/u245-500-f-hx01-rennai-pcb-v2532ffu