20 Most Recent Chamberlain Powerdrive PD422D 1/2 HP Security Plus Screw Drive Garage Door Opener Questions & Answers

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Chamberlain 4200 Garage Door Opener. I replaced the sprocket and now the traveller only travels a foot, reverses and travels a foot back?

Did you leave something in front of the infrared safety sensors? Or is needs resetting for motion of travel. Adjusting travel https://embed.widencdn.net/pdf/plus/cgi/1wvkfor8eb/a2175m.pdf?u=8agqx6 ..
7/24/2022 11:10:03 PM • Chamberlain... • Answered on Jul 24, 2022
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Need to replace carriage on stanley sd450 opener how is it done?

Please make sure you don't have broken springs first and that the door is balanced properly. If so you can replace the "Trolly" by disconnecting the arm from the opener, undoing the opener from the bracket that mounts it to the wall. This usually takes a 1/2 in wrench. Then swing the opener out far enough to slide the trolly off and replace it with a new one. Re-connect everything then re-engage the trolly.
10/1/2021 9:42:41 PM • Chamberlain... • Answered on Oct 01, 2021
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Garage door will not close entirely

door will not close all the way. will go partway down then reverse itself.
6/7/2019 10:11:15 PM • Chamberlain... • Answered on Jun 07, 2019
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How to change belt on Eureka Airspeed unlimited Pet

The screws were easily found on the top of the machine As i found here on Fixya. the screw may be removed by either slotted screwdriver or a phillips screwdriver. great info, thanks. Renetta.
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My wife paired her Acura

unpair it as there is another signal in your area on the same frequency. some frequencies can travel over a hundred meters or more. if you use a frequency monitor you will find there will be a lot of signals in your area. the original system will drown these out looking for its signal but pairing a device that has a different frequency or frequencies this can cause randone read. and will work on frequencies in this range can even be a freezer turning on etc. as every device make a signal.
2/28/2018 5:45:11 PM • Chamberlain... • Answered on Feb 28, 2018
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I have a SecuraLift Garage

Many of these devices use a code that changes each time the door is opened and closed. This feature is used to keep potential bad people from learning your operational code and entering your garage. You may have a communication problem whereby the Garage Opener needs to be reset. You may try to change the settings. If you have dip switches on the main unit in the garage, change the dip switches to another setting and write down the numbers in the order that you have the set them, Then go to the remotes, hand held and hardware placed on the outside door, and change the settings on these devices to MATCH up with the inside unit. This is a good time to REPLACE the batteries also.
2/20/2018 6:19:01 PM • Chamberlain... • Answered on Feb 20, 2018
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I have problem, with my door garage. it desn't

IF THE DOOR OPENS WITH YOUR REMOTE BUT DOESN'T CLOSE (AND WORKS NORMALLY FROM THE WALL BUTTON) THE PROBLEM IS IN THE SAFETY EYES - CHECK TO SEE THAT BOTH LED'S ARE LIT.

IF NOT CHECK WIRING POLARITY - CHECK FOR BROKEN WIRES - CHECK FOR ALIGNMENT AGAIN.
10/24/2017 1:20:44 PM • Chamberlain... • Answered on Oct 24, 2017
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My garage door is a chamberlain lift master. We

No need to - the unit has adjustments to control where the door stops on closing. You need to back off a tad on the closing setting so that the door stays closed.
7/5/2017 1:45:00 AM • Chamberlain... • Answered on Jul 05, 2017
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Poor remote control range

have you changed the battery inside the remote yet?
4/26/2017 7:38:55 AM • Chamberlain... • Answered on Apr 26, 2017
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Why does my door stop it's trave both up and down when the obstruction abmber and green light are both lit ?

Reset the travel distance setting on the back of the motor box
9/28/2016 4:28:24 PM • Chamberlain... • Answered on Sep 28, 2016
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Garage door gos down and hits the floor and reverses back up. There is also a green light on one sensor and a yellow light on the other sensor. What would be the problem.

I know sometimes if the sun is shining towardso the sensor it will start to go up before hitting the floor but this soundshould like you may have a misaligned sensor or one of them going out but this doesn't explain why it hits the floor first so my answer to you is that the travel distance setting on the motor is not set right it thinks it's hitting something besides the floor the settings for the door travel distance should be on the back of the box that contains the motor I'm sure this is what is causing your problems
9/28/2016 4:26:32 PM • Chamberlain... • Answered on Sep 28, 2016
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Do you have a trouble shooting manual that you could e mail me so I could print it and have it at the job site.

If you mean a repair manual the answer is not here.
9/28/2016 4:05:25 PM • Chamberlain... • Answered on Sep 28, 2016
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Chamberlain door opener--Door opens but light will not come on

We had he same issue and changed our bulb from a CFC back to a traditional bulb and the problem was solved!
6/6/2015 1:21:53 PM • Chamberlain... • Answered on Jun 06, 2015
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My garage door opener doesnt close all the way.

The motor is probably either stalling because the door is too stiff, or you have a beam break detector that is being triggered when the door is halfway down.
6/26/2014 5:32:52 PM • Chamberlain... • Answered on Jun 26, 2014
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