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

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I installed my garage door opener and am not sure where the wires are suppossed to go.

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If you have a new Liftmaster the first two connections are for your wall control (red and white) If they are reversed the light on the wall control will not work. The two white wires from the photo eyes go to the next connetion and the two black wires from the photo eyes go on the next connection

Posted on Jan 01, 2009

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Go to thehandyhandyman.com he will be glad to help you

Posted on Dec 26, 2008

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1 Answer

Just put in new craftsman 3/4 garage door opener it goes about 5in and comes back whats the matter..?? we cked setting


Did you install the door sensors? If you did, make sure the light on each one is lit and not flickering. Double check your wiring. Make sure you connected the wires from the door sensors correctly. They are color coded.

Sep 12, 2011 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

Last weekend I installed a new craftsman garage door opener. Twice now the garage door has opened on its own. The first time, I thought it might have been activated by one of my neighbor's remotes, but...


There may be an electronic short in either the wall control button or the receiver logic board. In this case, remove the wall control wires from terminals 1 and 2 on the motor unit. Should the symptoms persist after the wires are removed, replace the receiver logic board. If the symptoms stop with the wall control wires removed from the motor unit, replace the wall control button or the wires leading to the wall control button.

Make sure none of the staples have cut through the wires leading to the wall control.

Apr 17, 2010 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

My Craftsman garage door opener opens fine. When I try to close it the door starts to close, stops, the light flashes and it goes back up. I replaced the two sensors thinking one must be burned out. Before...


Make sure the sensors are wired correctly. The solid white wire from each sensor goes to terminal #2 and the wires with the black stripe go to terminal #3.

Each of the sensors has a small light that must be on for them to work properly. There is a possibility you could have a bad wire. Check to make sure something like a staple hasn't cut the wire.

Nov 25, 2009 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

Craftsman garage door 1/2 hp opens. Keeps open for no apparent reason. In the middle of the night and sometimes during the day, How can I fix


Most commonly this is caused by a bad wall control or the wiring going to it. The wall control goes bad from constant use and the problem with the wiring is caused by the staples most installers use. The staples cut through the insulation and cause intermittent shorts. I would remove the wall control and check it for a few days and if it happens again you can remove the wire going to terminal #1 on your motor unit. That will eliminate the wiring. Be sure to remember where the wires go on the back of the wall control as they are color coded. One is solid white and the other is white with a red stripe.

Aug 26, 2009 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

Access Master Garage Door Opener opens by itself


The most common cause of this is a bad wall control or the wiring going to it. The wall control goes bad from use and the wiring sometimes has intermittent short caused by the staples the installer used.

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

1 Answer

Craftsman Garage Opener (Unit run front & back only for 2 second)


Double check to make sure the sensors are wired correctly. The 2 solid white wires go to terminal 2 and the wires with black stripes go to terminal 3. If the wiring is correct then you possibly have a bad RPM sensor. The RPM sensor is a small circuit board just in front of the motor.

Jul 13, 2009 | Sears Craftsman LiftMaster Chamberlain...

3 Answers

Wiring diagram for garage door opener


Can you hook up sensors to an older craftsman garage door that never had them?

Jun 21, 2008 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

We are trying to install a garage door opener and our home is pre-wired with cat5e cable and not sure what colors to hook up


I like to use the blue wire and the blue/white wire for one side - blue/white connected to wire with black trace>

Do the same with red and red/white on the other side.

Use green for the wall control.

Hope this helps

May 03, 2008 | Sears Craftsman LiftMaster Chamberlain...

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