As many others have stated, there is a major design defect. The door latching and safety switch system will fail quickly. My failed in month 13 of our 12 month warranty. I've replaced the switch several times but it keeps failing. It may be that the cheap plastic parts are warping and causing the switches to not sequence correctly, it may be that the massive flex in the door triggers the switches in a wrong sequence. Either way, many have had this problem and you will too probably.