Liftmaster GDO problem Part 2
This is a follow up to my previous post. On disconnecting the power and removing the housing, a broken nylon gear was found on the opener shaft. Turning the motor shaft manually succeeded in sending the rest of the gear flying across the garage (and me to once again thank those who insisted I wear safety glasses as a rule and not an option). The motor shaft was very tight to turn with the opener gear engaged with the worm gear; both shafts turn freely now. My question now is what could be the cause and solution to this problem, ie temporarily stuck motor, failing motor etc. Again, thanks for any help with this.