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Problem
I had a garage door person over today. The chain was very tight. They took the chain off, and then reset the T bar. What started happening was that the position that it was stopping at in both the up and down positions kept changing. When they took a closer look at the motor and gears, it seems that a couple of the pieces are no longer aligned right inside the mechanism. So the decision is to replace some of the innards or put in a whole new opener. My wife is leaning towards a new one. The question is if there is any big difference between belt or chain driven, this one was chain driven.
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