garage door opener hums then stops

Old 03-17-19, 01:46 PM
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garage door opener hums then stops

backstory: left garage open for female friend to come in as i was leaving. told them to just close it and leave thru the front door or jump the sensor. friend became confused and pulled the release cord to close...shocked that they knew how to do that at the same time confused why the did so. came home and mashed the remote furiously as the garage wouldnt open until i walked inside and realized what had happened.

garage opener is genie pro screw drive 1/2 hp 9model cm8600ic/a

Now: the garage door opener will hum for a second and then just stop.
The difference in my case and what i've read so far in the threads i've searched is all i have to do for it to run again is pull the release cord and then immediately lock it back in place. then it will go up and down as normal no matter how many times i do it, at that moment. leave it alone for a while like 20-30 minutes and it'll just get stuck again. happened to me 3 times after i left the house.

it seems to me that it is stuck or something possibly on the limit switch? i've tried adjusting it but have no idea really what to do. messed with the force a little bit but no avail.

any advice on what to do before i have to call a repairman? thanks

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