Craftsman Garage Door Opener
have a Craftsman 1/2 hp opener, model 139.53962SRT. The garage door has been working normally until today.
Whenever I push the open/close button, the motor unit clicks once immediately, then again about 2 seconds later. I don't hear any humming or any other noise to indicate the motor is turning or trying to turn.
This happens if you push either the wired button, or the remote button.
The lightbulbs are not blinking, and I double checked the obstruction sensors, they are aligned properly.
There is a yellow LED right next to the red remote-program button on the side of the motor unit. It blinks 5 times and then pauses for a bit, then blinks 5 times again. It seems to do this repeatedly forever. The LED is labeled D12 on the circuit board.