Here is today’s: The old Sear’s chain drive garage door opener was jerking and spasming while opening and closing the door. It was almost 8 years old and considering it is the main way in and out of the house it gets used at least 4 or 5 times a day it was time for a new one. Replaced it with one of the Genie screw drive ones. Works faster and a lot quieter, but when it is not in use it generates a low level hum. Not loud, not annoying, just a sound that used to not be there when in the garage.
Why does my new $159 thing make a noise? Is it normal? Is it about to explode, showering the car below with shards of white hot metal bits?