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I have a 1/2 hp craftsman door opener. Model 41A4315-7d. Door goes up fine. Will only go down a foot. It is not the door sensors as they are both lit up and sensing fine (I've even tried disconnecting the sensors). Door will go down only if I hold the wall button. Door will not go down if I hold the remote button. Is it the start capacitor?

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  • 12 Answers

Probably not. try turning the tension adjusted up little more. its most likely a bind in the mechanical part of the system. if the arm coming from the chain guide is bent that could also trigger the tension limiter.

Posted on Nov 29, 2012

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Posted on Jan 02, 2017

lobsterman72
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SOURCE: Door will only close when held down

That normally happens when the sensors aren't aligned. Both sensors have led lights on them the yellow/orange one will stay on all the time the green one will go out if it cant see the other sensor. Possibly theres a wire that's broken or the other sensor is really out of alignment. Check every inch of wiring from the sensor to the opener, remove wire nuts if present and check the connections. The wires that are used are small, solid and can break easily. Also see if there's a staple that's too tight, move the wire abit where it's stapled and look for damage.

Posted on Jun 27, 2008

  • 244 Answers

SOURCE: GARAGE DOOR OPENS BUT WILL NOT CLOSE AUTOMATICALLY

is bulb on motor flashing 10 times. then you have electric eye problem. otherwise, sounds like you need to increase down force a hair. adjustement is on logic board, right knob.

Posted on Jan 15, 2009

  • 244 Answers

SOURCE: remotes not working door won't go down

safety beam problems

Posted on Jan 15, 2009

  • 3197 Answers

SOURCE: My Craftsman 139.53879 remote won't learn the code

I have no idea what a 132C2105-3B is but try this. Hold the button down on the remote and then press and immediately release the smart/learn button. If the remote is the correct one for your opener it should work.

Posted on Jun 29, 2009

  • 3197 Answers

SOURCE: Liftmaster 1/2 horse Model HBW0777 acts like the

If the main light flashes 10 times when the door reverses it is a door sensor problem. Look closely at the green lights to make sure one isn't flickering ever so slightly. Tweak them a bit.

Posted on Mar 22, 2010

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Sears craftsman 1/2 hp. Door goes up with remote, but when button pushed to go down the light flashes and door doesn't move. If you push the wall mounted switch, the door goes down like normal. Works...


Check the sensors in the doorway. They should both have a small light that is lit and not flickering. Tweak them a little. If you cannot get both lights to come on you have bad sensors.

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Garage door goes down a foot and goes back up. light by learn button flashes five times


That light is sending the code for RPM sensor or motor overload. Most likely it is the RPM sensor which is a small circuit board just in front of the motor. The part number is 41C4398A and is available at any good door opener service company.

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My Craftsman 1/2 hp garage door opener will go up fine with the push of any button but it starts then stops when I try to push the button for it to go down. It acts like there is something in front of the...


If the main light flashes 10 times when the door stops it is a door sensor problem. Make sure the small light on each one is lit and not flickering. If the main light doesn't flash you have either a bad IR sensor which is a small printed circuit board just in front of the motor or you need to increase the down force which is a control on the rear of the motor unit.

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My older Craftsman garage door opener comes down about 6" & then goes back up. I just replaced all the rollers o& the opener worked fine. Then I tightened the chain on the opener & it worked ok...


If the main light flashes 10 times when the door goes back up it is a door sensor problem. You chain should sag just a little. If you tighten it too much it will click as it goes over the sprocket. You can increase the down force which is an adjustment near where all those white wires go. A 1/4 turn should be enough. Release the door from the opener and operate it by hand. It should move freely and when you have the door approximately waist high it should stay put. Neither raising nor closing.

Jan 11, 2010 | Sears Craftsman LiftMaster Chamberlain...

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Remove the cover and check the drive gear. It is white nylon and is just in front of the motor. It may be stripped. Take a close look at those door springs. They can sometime appear to be okay when one is broken.

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1 Answer

My craftsman 1/2 hp garage door starts to close and then opens up


I had a simular issue, except mine was that the previous owner decided to mess with all the settings and mounts and screwed everything up.

The problem isn't your force sensors its your downwards stopping sensor on the opposite side of the opener. For me I had to take the entire panel off and replace the sensor back in its holder, but try adjusting that sensor setting (clockwise goes down, counterclockwise goes up).

If that doesn't work then i dunno:)

Also set both force settings in between 0-1, for some reason with mine if i set it higher it would set them off....

Jul 19, 2009 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

Door goes up about a foot and stops


The sensors have nothing to do with your door opening. First thing to check are the door springs. One may be broken. Next remove the cover and check the drive gear. It is a white nylon gear just in front of the motor. It may be stripped.

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