After about 5 years my furnace acted up ... intermittently stopping and finally bit the dust. Problem was solenoid coil within gas valve assembly. They punched the coil wires to the lugs - duh of course it will fail. I soldered them on and presto purrs like a kitten and always works. They do that on purpose to get a tech out there. Sorry about the video cutting out at the end .. AA cells in the flip camera died but I think you get the point. Bettina
