The Raypak 55A/155A/185A PCB Circuit Board [MV] is a Raypak heater control-related replacement part used in compatible pool and spa heater systems. Control boxes, circuit boards, pilot panels, potentiometers, and junction components help manage ignition, temperature input, safety response, or electrical routing depending on the heater design. Part 005089B is a useful replacement when troubleshooting points to a failed or damaged control assembly rather than a water-side or gas-side issue.Because heater controls vary by model year, ignition style, voltage, and fuel configuration, this item should be selected only after comparing the existing part number and service documentation. Symptoms such as no ignition, inconsistent response, damaged terminals, burned board areas, or unreliable temperature adjustment may indicate the need for this type of repair, but related switches, sensors, wires, and safety limits should also be checked before replacing parts. Replacement Raypak heater control component for the listed model/application Supports ignition, temperature, safety, or electrical control functions depending on the heater design Used when diagnosing failed boards, damaged control boxes, worn adjustment components, or unreliable operation Verify voltage, ignition type, fuel configuration, and connector layout before installation Compare the existing component to part number 005089B before ordering
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