Hello, I hope someone on here can help me out today. I have a DC25 that is in good condition but the on-off switch was finicky. While I was in the process of replacing the three switches, at some point I noticed a small strong magnet on the floor. Either it came off my DC25 or it's a big coincidence. I read about the DC16 having a magnet on the filter so the machine won't turn on without it. Does the DC25 also have this feature? Where does the magnet go? With all three switches replaced my DC25 still does not turn on. Thanks in advance for your help.