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reeseo

Craftsman Garage Door Opener Model 139.53413 - Won't stop running

reeseo
16 years ago

I've just finished replacing the drive gear and worm gear on a Sears/Craftsman garage door opener. When I plug it in it just keeps running. The travel lift adjustment turns until the little metal contact travels past the up/down contact. I have turned the adjustment so that it touched either up or down contact but it still runs. I've checked the four pin circuit board plug to make sure I had it on right and checked all other wires/connections. I've also pulled the black cap off the end of the drive shaft and made sure it's on as far as I can get it. Any ideas what I should try next? Thanks

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