I own the MES 30" electric water smoker and I've used the AMNPS quite a few times and really liked it. However, the last three times I've used it (for brisket and racks of pork spareribs) I've had a huge problem with keeping it smoking. It's been going out after about 15-20 minutes of smoking constantly during the cooking. I'm continually re-lighting it during a 4-hour smoke. What's especially maddening is that the AMNPS works fine AFTER I've finished cooking and have removed the meat. The thing won't stop smoking unless I close the top air vent.
Todd has recommended that I not use the water bowl because it just steams things up inside and could be contributing to putting out the smoking pellets. I just don't know about that. I've tried using the MES with the AMNPS and without the water bowl but I had the same thing happen one time. I prefer to use the water bowl because then I don't have to worry about opening the door to baste or mop the meat. Opening the door loses about 30 degrees of heat and it can take about 20 minutes to get back up to the target cooking temp.
Has anyone else had problems keeping the AMNPS going? If so, what did you do to resolve the issue? Thanks.