There are holes in the bottom of the door. I read to use a coat hanger or something small but fairly stift with a cloth and whatever cleaner on the cloth. I haven't tried it but don't see why it would not work. Good Luck.
You can take apart the cover and the glass comes out- pull the door open and you should see multiple screws. Every model is different obviously but I have done it before, not hard, probably not novice level though.
You need to unscrew the screw on the top right and left side of the door and the next screw under that on both sides you should be able to separate the doors be careful to hold both doors and the metel part and handle don’t let the door slam up clean glass then put back together