grundfos cu200 questions

I am working with a cu200 controller. Even when the button is off it still has power across both terminals. (the terminal that the pump wire goes to) If I try to get a reading from one terminal to ground I get nothing on the other one as well. Any ideas?


  • n3qikn3qik Solar Expert Posts: 741 ✭✭
    Re: grundfos cu200 questions

    Is this with the pump wired to the control. If it is without, then it could be bleed voltage from a solid state switch.
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