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Craftsman 1/2 hp garage door will not open

My opener motor hums twice when I use the remote, keypad or wall pad but will not open or close the door. The light comes on though.

Posted by Anonymous on

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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glenmann62
  • 91 Answers

SOURCE: How do I code the garage door wireless key pad?

simple ;find the smart button on the opener and pressit ,their will be an indicater light next to the smart button that will remain lit ,then go over to the keypad and put your 4 digit code in example1234 then press enter on keypad and hold down for 3 seconds until garage door opener lightbulbs shut down and come back on , and thats it simple as pie! when the lights go on and off on your machine it,s telling you that it has received the code that you just programmed into it , guaranteed to work everytime , Thank you for letting me help you Sincerely Glenn mayer

Posted on Mar 05, 2009

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ltfrc
  • 227 Answers

SOURCE: New Craftsman 95320 1/2 hp chain drive only opens door ~6"

Try this link
http://www.garagedooropeners.us/helpgifs/chamberlain_troubleshooting.html

Posted on May 25, 2009

  • 3197 Answers

SOURCE: I have a craftsman garage door opener (1/2 hp) won't close proper

Check your door sensors. They have probably been bumped. Tweak them until they are pointed at one another and the small light on each one is lit and not blinking.

Posted on Jun 01, 2009

  • 3197 Answers

SOURCE: I have a Craftsman 1/2hp garage door opener, model

First of all check the battery in the keypad. If that doesn't do it your keypad is going bad and needs to be replaced.

Posted on Jul 21, 2009

  • 3197 Answers

SOURCE: Remote Control closes garage door but does not open

It sounds like a case of your keypad losing signal strength enough that it cannot transmit through the closed door. If a new battery doesn't do the job a new keypad will.

Posted on Sep 12, 2009

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1 Answer

My 1/3 hp craftsmen door opener just hums when you hit the wall button or remotes in the car. I replaced the starter motor capacitor and nothing changed any ideas?


Is the door stuck in the open position? If so the trolley is probably jammed against the bolt just in front of the motor unit. Loosen the chain until the tension is removed from the trolley. Run the motor until the door is closed. While the door is closed locate the 'up limit' adjustment on the side of the motor unit and turn this 2 complete turns in the opposite direction of the arrow printed on the cover. Tighten the chain.

Dec 21, 2010 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

Craftsman 3/4 hp Chain opener.....Door opens and closes by itself. No blinking light, looks like everything is clear with sensors. Half opens then closes, then door completely closes and 5 seconds later...


You most likely have a bad wall control or the wiring to it. An easy way to check this is to remove the connection at terminal #1 on the rear of the motor unit. Just remember that your wall control will not work with this wire off. Your remotes will still work though.

Dec 21, 2010 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

My 1/2 hp sears craftsman garage door opener bought in 1992 has stopped working, The motor hums when the remote or wall button is pressed but the door will not move at all. Please help


Most common cause of the problem you describe is a bad start capacitor. Remove the cover from the motor unit. The capacitor is about 5 inches long and 2 inches in diameter.

Dec 02, 2010 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

Craftsman 1/2 hp opener won't open using the outdoor keypad. It will close when using the outdoor keypad but not open. Wall unit closes and opens it. changed battery in keypad, no difference


If your hand remotes work okay then the keypad has lost signal strength and needs to be replaced. If your hand remotes act the same way then your logic board is bad.

Jun 28, 2010 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

Craftsman LiftMaster Chamberlain Garage Door Opener Wireless Keypad Model 976LM Security+: My craftsman 1/2 hp garage dood does not close whe...


If the main light flashes 10 times when you try to close the door it is a sensor problem. Make sure they are not flickering ever so slightly and that they are not loose on their brackets. Tweak them a little bit.

May 18, 2010 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

I have a Craftsman garage door opener model 139.53325SRT 1/3 HP, it was working fine and then it would not open, when push the wall switch, the opener hums and the light starts flashing, I have removed the...


It sounds like your door sensors may be misaligned. If when you try to close the door the main light flashes 10 times and the door reverses to the open position this is the case. Make sure the small light on each sensor is lit and not flickering. Tweak the sensors to see if you can get both lights to come on. If not you have a bad sensor.

Feb 24, 2010 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

I have a craftsman garage door opener (1/2 hp) won't close proper


Check your door sensors. They have probably been bumped. Tweak them until they are pointed at one another and the small light on each one is lit and not blinking.

May 31, 2009 | Sears Craftsman LiftMaster Chamberlain...

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