I have a M200 HEPA enclosure which I bought in the last few months. Occasionally (basically all the time now) the fan stops working. I opened it up, tried to reflow the solder joints, and basically it works fine when the fan is pulled out of the case, but every time I put it in with the stuffed wires, it works only sporadically. I’m guessing some of the wires are messed up, but I don’t really know where to start. Is it possible to get a replacement?