Been going on for a while now garage door opener would stop working. Got frustrated and just disconnected power. Noticed door was unusually heavy, especially on one side. Thought maybe some rollers were jammed up. Sprayed them with garage door lube which seemed to help but was still not right. Noticed some squeaking from the tight side but couldn't pin it down. Then I noticed pulley was not turning. Pulley was all jacked up I think some of the ball bearings actually disintegrated. Replaced pulley plugged opener back in and everything seems to be working again. Only took me a few months to track it down lol. Ten minutes to swap pulleys. Got to pay more attention haha.
