Raypak 601586 601588 Circuit Board

Raypak 601586/601588 are the PC‑board controllers for the RP2100 digital gas pool and spa heaters (models R185A–R405A). Known failure modes include loss of digital display output, erratic temperature regulation, or complete power loss due to damaged MOSFETs, relays, or capacitors on the board. Common repair actions involve inspecting solder joints for bridges or opens, testing input voltage and regulator ICs, and checking relay contacts for wear or corrosion. First‑check steps: verify 24 VAC/12 VDC supply to the board, inspect the display driver IC and associated traces, and review any stored fault codes via the heater’s diagnostic port.[oss-gpt-20b]

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