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StevieG

03:58PM | 02/28/03
Member Since: 02/27/03
3 lifetime posts
Bvwindows
I just bought a house a few months ago and my craftsman 1/2 hp opener has given me so many problems (139.53636SRT). Initially it was the sensors and I was getting the lcikcing and lights flashing, but once I aligned the sensors, no problem (I have consistent green LEDs on the sensors). Now what is happening (and I htink this started soon after I plugged in a second light bulb into the unit- the previous owner only had 1 plugged in) is when I hit the button, the lights dim, I hear a buzz until I let go of the button. I have asked this question all around and seen many others ask it, but I haven't seen any answers. Can someone please help!!!! Thanks a ton!

rpxlpx

04:55AM | 03/03/03
Member Since: 03/13/00
1675 lifetime posts
You said "until I let go of the button".
You should only press the buttom momentarily. Don't hold it pressed.
If you have to continue to hold the button, then there is a malfunction.
The button isn't what opens and closes the door. It simply sends a signal to the actual opener to do its thing.
It's like pressing a doorbell button. Holding down the button after the initial "press" doesn't make it work better.

[This message has been edited by rpxlpx (edited March 03, 2003).]

StevieG

01:05AM | 03/04/03
Member Since: 02/27/03
3 lifetime posts
Well, it doesn't open whether I push it once lightly, hold it down, push rfapidly many times, etc. It doesn't move period no matter what I do. Just that same - click, buzz (lights dim) click. Someone mentioned it could be my "starter" so I went to the ***** parts place and they said there isn't really a starter for it (according to the diagram/parts??). He suggested a lot of times it is the drive worm gear or a gear assembly- both replace a large plastic gear inside the housing. the key was - "you hsould notice al ot of white plastic shavingsin your case. Well, I opened it and there's no white shavings and the gear - though it looks like it has taken some wear, is still intimately engaged with all the other gears. There were 3 small plastic ... clips...?... pieces in the case and I'm not sure what the are. They are small, have a slight curve to them, and a the plastic goes to a circle at one end. It's tough to describe what they look like. I was goign to take THIS part back, adn take these pieces and see if anything pops up. Thanks for hte comment, but I think it's something else....

Still searching....

rpxlpx

04:43AM | 03/04/03
Member Since: 03/13/00
1675 lifetime posts
Oh sorry, you didn't say that the door doesn't open. Guess I should have realized that. (I thought it was working, but you just didn't like the buzzing.)

Your problem sounds like the motor is not turning. If that's the case, it's either the motor, the gears, or a mechanical problem with the door itself.
First, can you open the door manually when the opener is disconnected? Does it open and close smoothly? (It's not manually locked is it?)
Second, with the gears disconnected from the motor, can you move them?
Third, with the motor disconnected electrically and mechanically, can you turn its shaft?
One of these 3 tests should help point you to the problem.

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