<h1 class=”title page-title”>Motor Speed Control Board, DC Controller DC10~-50V 3000W 60A Speed Controller/DC Motor Control Board/light dimmer/heater Controller/PWM Regulator, Model #2001712013</h1>
I have two of the above referenced Motor speed control boards and they are both doing the same issue. When I connect 12vdc on the battery terminals the motor terminals output 12vdc no matter if the potentiometer knob is on or off. When I connect a 12vdc fan to the board it runs in full speed no matter what I do with the potentiometer knob. What am I doing wrong?