humming garage door opener!!!

thomaszrJuly 4, 2006

HELP! All the garage door opener does is HUMMMMM when I push the button. I took the cover off and it seems to be coming from the motor. I figured I'd ask for some advice before I went any further.

It is a Sears 1/2 hp made in 04/94. (other info on the side of the unit: HBW0777 41A4315-6A K1027) Any ideas or clues on where to start trouble shhoting would be appreciated. THANKS in advance...

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Don_

Sounds like you have a bad starting capacitor. It is usually 4 or 5 inches long and about as big around as a silver dollar. You can buy them at any local door opener shop. The 2 blue wires go to one of the 'U' shaped connectors and the 2 red wires go to the other. Easy as pie.

    Bookmark   July 5, 2006 at 2:07PM
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thomaszr

Sounds like a good place to start. I'll give it a try and let you know how I made out. THANKS

    Bookmark   July 6, 2006 at 11:38AM
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thomaszr

I replaced the capacitor and all I get is a Hummmm, click, Hummmm, click, hummmm, click and then nothing....

Any other ideas or suggestions?

    Bookmark   July 15, 2006 at 3:27AM
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Don_

Is your opener stuck in the up position. Make sure the trolley isn't jammed against the bolt just in front of the motor unit.

    Bookmark   July 17, 2006 at 12:17PM
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