Do you fill the water from the top? In the past I have done this and poured a bit fast, the result being water overflowing the left end (looking from the front), through the hinge of the top flap and down into the machine. If I leave it off for 30 mins or so it dries out and is ok again. If yours is staying on it might be moisture/cockroaches inside (other posts have reported this problem in the past). If your tech savy you can dismantle and have a look (BE VERY CAREFUL - LOTS OF 240V inside that can send you to the big coffee house in the sky!!). If its still under warranty Id be ringing SB. Gook luck.