Halvor Posted January 20, 2020 Report Share Posted January 20, 2020 I have a brushless (just gave it to my boss, so don't remember the model) 18V drill that has suddenly started running way too fast. A coworker almost burned it out driving a few screws, it got way too hot doing almost nothing. I tried searching for the problem online, but found nothing. It's WAY too fast and very noisy! Anyone else had this problem? Anyone know what's happend? -Hal- Quote Link to comment Share on other sites More sharing options...
paulengr Posted January 21, 2020 Report Share Posted January 21, 2020 Output is constant and maxed out. Either the driver transistor has shorted out or a sensor on the control board failed. Replace boards in it but frankly with prices what they are it’s scrap.Normally the control board limits and controls voltage/current so it will crank it up if it gets loaded down then back off when it is up to speed. In your case it’s not doing this anymore. Quote Link to comment Share on other sites More sharing options...
Halvor Posted January 21, 2020 Author Report Share Posted January 21, 2020 Output isn't constant. The max speed is just a lot faster than it should be. Quote Link to comment Share on other sites More sharing options...
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