
Replaced the gear in it a couple weekends ago, didn't work. Would just alternate back and forth about six inches.

Thankfully we converted our attached garage into a bedroom and had a spare one that I'd given to my father -in-law.
Which had been left out in the rain. FML.

Took both of them apart and cleaned things up, tried to make a Franken-opener.
No dice.
Long story short, I bit the bullet tonight and bought a new system. On the bright side I have plenty of spare parts so long as circuit boards don't go bad.