For a few days there was a grinding sound whenever the door started moving. Now the motor spins freely and the door stays exactly where it is.
The rail shakes when the door runs. The steel straps holding it to the ceiling have worked loose, the chain rattles the length of the garage, and a bolt has already dropped onto the hood of the car.
Press the remote and the motor runs its full cycle, lights on, the usual whir, but the door does not move a centimetre. Up at the trolley, the belt is hanging loose where a small plastic clip used to hold it.
Press the button and the motor hums, but the door stays exactly where it is. Under the housing there is a dusting of white plastic shavings, the sign of a stripped drive gear, and this is the second time it has happened.
The door will only go down while a finger stays on the wall button; let go and it stops or reverses. From the remote it opens fine but never closes, so someone has to stand in the garage every time.
Someone in the family tried to add a remote, held the button on the ceiling unit a little too long, and now every remote in the house is dead at once. The wall control still moves the door.
A smart hub arrived in the mail with a coin-cell sensor and two wires. The instructions ask what colour your learn button is and how old the opener is.
A previous owner knotted the release cord around the rail and stacked storage shelves right beneath it. You only discovered this in the dark, with the power off, a flashlight in your teeth and a car that needed to be somewhere.