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  1. I

    Need help finding to buy a Pentair Board Part# 520657. Can't find one anywhere and Pentair is zero help in locating one.

    Our system stopped controlling the heater so I called the electrician that wired the system and he called Pentair because every time he would add the heater to the board again, it forced a complete restart and still failed. Pentair said the board is going bad and needs to be replaced as it will...
  2. I

    I am in desparate need of a Pentair 520657 mother board, I can't find one anywhere

    I too need a board. Pentair confirmed my board is going bad. Heater can't be controlled anymore by the system and adding it restarts the entire system. Electrician called Pentair and they said board is going bad. I have lights, actuators, etc connected a'd freaking out about not being able to...