Question about Dewalt DC500 Canister Wet/Dry Vacuum

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DeWalt DC500 wet/dry vacuum

Vacuum works on 120volt, but when just on battery the motor turns at extremely slow rev's and can barely hear it turning. ?????????

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I had the same problem and traced it down to the on/off switch. I sprayed some electical contact cleaner down inside the switch and now it works normal. Hope this helps.

Posted on Nov 08, 2008

  • ubertabm Jan 25, 2009

    The electical contact cleaner ended up only being a temporary fix. I had to replace the on/off switch and that fixed it.

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