Question about Dewalt DC500 Canister Wet/Dry Vacuum
Vacuum works with the battery but does not work with 120 volt. Every time I plug it in it blows the internal fuse. I have replaced the fuse inside the vaccum several times and every time i plug it in it blows. What do you think it could be?
This unit operates on 12-18v dc and 120v ac. Inside the unit are two converter circuit boards. The motor is DC so the 120 v has be converter using the AC to DC circuit board. If you use one of three different volt batteries (12, 14.4, or 18v) then the DC converter circuit board drops the voltage to 12-12.5 volts. Typically, when one of these circuit boards goes bad it will cause a small in-line 15 amp fuse to trip. You can replace the fuse but it will blow again untill you replace the circuit board. Usually one power source will work and the other will not. If the battery works (DC-DC circuit board - ok) but the A/C power (AC-DC c.b.) trips the fuse, then this is what you need to change. You can buy and factory fuse (soldered tips and covered in black shrink wrap) or buy a simple universal fit one that will be easily to replace once you have corrected the problem.
Posted on Jan 31, 2011
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Posted on Jan 02, 2017
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