how do i determine why my dishwasher is tripping the power?

my smeg pl8210x dishwasher is 2 years old, its been running great until now. Whilst running a load of dishes, it tripped the power, out in the power box of the house.

i attempted numerous times to turn it on again but it trips the power again.

i opened the dishwasher and pulled out the filter, making sure it was all clean etc, then i pumped out that 2ltrs of water, (that sits at the bottom) out.

i closed it back up and couldnt believe it, it let me turn the power on without tripping the switch instantly. but unfortunately after 1 min of running it tripped the power again..

i repeated that a few times, with no luck.

i checked the jet sprays, they are all good.

i checked every part of the machine, pulled it apart and couldn't find anything blocked or water where it shouldnt be ....

some one please help !!! all i know for sure is that when i drain the water out of the filter section, the machine will turn on, but then trip the power a short time later..

if i dont empty the water, it trips the power instantly