I was testing my ms with the stim using a 9v and it got low so I switched to a 12v power supply and got the polarity wrong. Now the Idle and the pump LED's turn on for a few seconds when you apply power to the stim and then turn off. I am no longer able to get rpm values from it. What did I fry? Could I have hurt the MS? It was only the wrong polarity for maybe a second. Thanks for your help.
Casey
I switched the power polarity and now the rpm won't work!
Moderators: jsmcortina, muythaibxr