At first I was appalled with the apparent low quality of the gear. But then I thought about it and it may be a sacrificial part - almost like a fuse.
FAR cheaper to replace a plastic gear than the motor. And if a motor goes out, it can go in a very exothermic manner and then create other mayhem.
I bet this gear is also easy to replace as well as being inexpensive. I may just buy a gear replacement kit and put it on top of my existing Chamberlain unit. At least I have three of the same model openers (one in shop, one for house and one up in barn.
I like do that, like having an extra 40/60 PSI switch for the well pump, extra circuit breakers stored in the c. breaker box and always buying more plumbing fittings than the one I need.
It is just too long a drive to go into town . . . . . .
Great suggestion.
Steve
ps - but will I remember that I already have a replacement sitting on top of an opener . . . . .
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consulting on geothermal heating/cooling & rational energy use since 1990
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