LD is long drain ,sounds as if you have a clogged pump .
you will need to bail the water out (or a shop vac works great)
Then lean the unit back and you will need some towels and from underneath you will see the motor in the center and two pump to the rear the pump on the right rear corner id the drain pump .remove those hoses and check for articles of clothing ,lint (remember you will have some water coming out of the hoses.
ok the it is not the pump if you CAN get it to drain I did not understand that sorry .
Then it has to be the electronic control board has gone bad .
MaY i Have your model number to give you a part number?
Can a non expert install that?
oh yes a none expert can replace it .
it is just under the console .
here is a link to the part .
oh easy !!
Just unplug the unit .take a putty knife and go up under the end caps and push to the rear and at the samw time lift the end cap up to unlock it ,then fold the console back ,and the control is right there held in place with a couple of clips just remove wire harnesses one at a time and install on the new control ,move the plastic tube over to the new control ,mount the new control fold console down ,and snap back into place. and then plug in and test.
Oh and glad to assist.
knob does not need to come off to raise the console.
AND I `m so SORRY this model has three screws in the back that allow the console to come off one on each side and one in the middle.