This is usually a broken door opening lever behind the door open button. Sometimes it is a broken tab on the door opening button. It will require visual inspection to tell. Since this is a counter top model, the outer cover / wrapper will have to be removed to get to the door opening parts. If you or a friend decide to work on it, we have *critical* safety and disassembly info at our site, which is linked at our listing here on FixYa: http://tinyurl.com/yzjozk You can order parts at one of these sites: http://www.pasc.panasonic.com/epartr http://www.vancebaldwin.com/
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