Quote:
Originally Posted by PhilM
We've had a problem with speed controlers burning up. We've lost three or four already, and we are concerned about the competition. The speed controlers we've lost were not all from one motor, though it seemed that way at first. What exactly would cause a speed controler to burn up? We don't want to lose anymore, especially with Murphy's law.
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Usually its from bits of metal shorting out the transistors inside. Or if you wire the input reverse.