I don’t know anything about garage door opener installation. Our new Chamberlain WD962KD was installed by someone who does this for a living. But my bet is still on the fact that the garage door torsion spring in the picture is broke. Now you would think I would remember if those two pieces on the left used to be together or not. But honestly I really don’t. Logic would say they should be and that is what snapped last night. I may end up being wrong but the source of the garage door opener problem to me looks fairly clear.
After the installer stopped by late this evening while I was sleeping. It has been confirmed that part above is what caused problem. It should be around a $180 fix. So with cost of new garage door opener. A little over $400 has been spent just for convenience. Well worth it in my opinion and luckily our landlord has been a big positive through all this. Original system had been in place for sometime. So was probably getting to the end of cycle point.