Our dryer went on the blitz last wk. The repairman replaced the heating coils and said that the timer actually works ... it was not heating, so the timer never went off, programmed to finish when clothing was dry. I bought a $189 warranty, and the bill came to a bit over $200. (I wonder if they configure that just over the warranty amt to make it look good?) Anyway, he said the vent needed cleaning and the clog in it is what caused the dryer to overheat and that it would happen again. I asked him if he could snake it or something and he said that vacuuming is the way to go, but they weren't allowed to do that because too many guys have hurt themselves. Say what? So *I'm* supposed to do it? How do you hurt yourself? There is nothing electrical there. It's a coiled tube that goes from the back of the dryer to the outside of the house, about 6 ft long. I could get on a ladder, have difficult child hold the vaccum cleaner, use the attachment and be done with-it. But what if there really is something dangerous? Is this BS on the repairman's part? Has anyone done this B4? Thanks in advance.