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Power inverter My 400 watt power inverter is not getting power. Does it have a fuse I should change. The problem is the inverter as my other inverter works off same power source. thanks, M

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  • carlos proano
    carlos proano Jan 06, 2009

    Does anyone have a circuit schematic diagram for the Balck & Decker PI400AB? I need to repair it as it has been connected reverse to the 12VDC supply.

  • skiptempe Apr 15, 2009

    I have the same problem. It won't charge up and it won't jump start anything. I was also thinking of a fuse or something that can be re-set. The both lights turn on but when I tried the pump, nothing. Even with the switch on or off and the charging unit plugged in. How about some help.



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Most likely a fuse. Check for a fuse on the inverter itself or one inline with the plug. Usually you can screw off the tip of the plug and replace the fuse inside.

Posted on Oct 24, 2008

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If you accidentally connected the 12V leads in reverse this is your solution. I just solved this one myself on a 750watt B&D.
You will need a small and medium size phillips (x shape tip) screwdriver, a set of small needle nose pliers and something like a knife to get under the edges of the logo stickers to remove them.. There are internal fuses in most of these inverters on the 12V side. Remove all the mounting screws, including the ones under logo stickers. Make a note of where the different screws go because they are different sizes. You can leave in the screws on the 110V side cover. when you have all the screws removed, the innards should slide out partially. (1+1/2 inches) Do not force it too much as there are wires going to the 110V plugs still attached. Remove the fans if they are in the way. You should be able to get at the automotive fuses inside. They are small flat plastic rectangles 3/4 inch by 3/16 by 3/4 inch deep, with a number printed on the centre at the top. You can see on the side of them if they are blown if the little curved wire in the centre is broken. Carefully pull these out with the pliers if the they are blown and replace with new ones from an automotive or electronics store with the same number printed on the top.
If you find the fuses are not blown then there may be another problem
Good luck

Posted on Jun 12, 2009

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Indeed the fuse, I connected my PI200 in reverse also, In the rear, where the power leads are, there are 4 small outer screws ,remove them and pull out black panel, (you can leave the 4 screws around the fan intact) you should see an auto-type flat 25 amp fuse on the right. I replaced that and it worked fine. The circuit board that the fuse is mounted on slides out app 3/4 in. if needed, i used needle nose pliers to remove fuse. Good Luck !

Posted on Nov 04, 2009

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