Why won't my Oster eLume blender turn on?

Greetings I currently own an Oster blender that won't turn on, been using it for quite some time and now it doesn't turn on, I disassembled it to check for some basic stuff, like cables, short circuits and such, but everything seems fine, the power cord and its cables are fine, tested with a multi meter, the weird thing is, every time I pull out the circuit board to clean it with acetone and brush all the components and proceed to connect the cables and assemble everything back again I plug in the power cord and it turns on and works when I press any speed-blend but then it shuts down within a few minutes after that it won't turn on again no more until I let it rest until the next day (with the power cord unplugged onto the outlet) or until I disassemble it again to clean the circuit board with acetone. Any one know's what its going on?