I have a GE dehumidifier (Model #AHM65LKM1) in my basement. It's been working great for nearly 5 years, but recently has started leaking. I took the cover(s) off most of the way and cleaned out what appears to be a small drain hole that may have been plugged. Water that had pooled inside the unit appeared muddy. (This might be from dust in the air from when concrete was cut in the basement.) I cleaned it out as well as I could. I looked for cracks in the plastic, but didn't find any. Before I reassemble the thing to test it, can you tell me if there's anything else I should be considering that might cause a leak? I'd rather not go through putting it back together and then taking it apart again. Thank you for your help.