Question about Chamberlain Powerdrive PD422D 1/2 HP Security Plus Screw Drive Garage Door Opener

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Garage Door Chamberlain Power Drive 940D-01 does not move. It clicks only. It is no the spring. The light bulbs are not lighting so I think it is electric.

I hear a click but it does not move. The 2 light bulbs that are inside the unit by the motor are not lit. I tested them and they should work. I believe it is related to some kind of electric. I changed the spring last week (company) and it was working fine for the past week. Thank You.

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6 Suggested Answers

6ya6ya

6ya staff

  • 2 Answers

SOURCE:

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Posted on Jan 02, 2017

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GMClover

  • 12 Answers

SOURCE: Door will only close when held down

if you obstruct the photo eye does the light flash ?

Posted on Jun 15, 2008

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marty metzger

  • 244 Answers

SOURCE: Chamberlain garage door opener won't close

read manual, if you have, on trolley engagement

Posted on Jan 17, 2009

Anonymous

  • 18 Answers

SOURCE: Garage door opener doesnt close the garage

If you have to hold down the button to close the door, you are bypassing the sensors ...
Check the alignment of the sensors. Should see a solid GREEN light

Posted on Feb 13, 2009

glenmann62

Glenn Mayer

  • 91 Answers

SOURCE: Chamberlain garage door opener unit-is it compatible with craftsman keypad?

Hello,Linda well this is your lucky day ,I have installed garage door openers for sears for 10 years and i can tell you that craftsman,chamberlain ,and liftmaster are all the same machine and manufactured under the liftmaster name , if you buy it from home depot it will be a chamberlain ,if you buy it at sears ,it will be a craftsman, and if you go to commercial building supplier it will be a liftmaster! now getting that out of the way even though they are all compatible ,there is one thing that stands in their way and that,s time ,For example if your chamberlain machine is 5 years old and you went to sears last week ,the chances of the frequency being the same are not good , most likely you have the wireless keypad , one way to test the sears keypad against the chamberlain machine is to locate the smart button on your machine ,this button allows for programming of remotes and keypads , to test and see exactly what im talking about take your remote and locate the smart button ,if you have three buttons on the remote press one of the buttons that are not being used on the remote ,above the smart button their will be a blinking light ,if you press your remote button you will notice the light go from a blink to a rapid flash , This is telling you that you are sending a signal for programming to the machine , well the keypad is exactly the same all you have to do is push the enter button on the keypad and have someone watch for the rapid blinking light ,if they are compatible the light will blink rapidly on the machine so all you have to do now is have someone press the smart button once on the machine your indicator light will now be a solid light you will have approx 60 seconds then to put a 4 digit code in the keypad and then press and hold down the enter button on the keypad , at this point you will notice the lightbulbs on the chamberlain machine to shut off and come back on this is to tell you that the machine accepted the code , after thats been done you can use your keypad , you can also find the owners manual to the chamberlain and follow the same instructions to programming the remote , they are identical in programing , if your keypad is not the same frequency you can also tell by looking at the frequency code on the backside of the keypad and also the chamberlain unit usually where the light bulb is will be its code

Posted on Mar 04, 2009

Anonymous

  • 1 Answer

SOURCE: Chamberlain Power Drive 1/2 HP - motor runs but does not move chain

I have the same problem with the worm gear shaved. I bought the replacement part and replaced the worm gear. The door did not travel to the full distance between the limit switch. It hit the upoer limit, stopped. When I pressed the remote again, it only reverse for a short distance and never hit the other end of the limit switch. Any hints what the problems are?

Posted on Jun 12, 2009

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