Question about Chamberlain 12HP Power Drive Chain Drive Garage Access System

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I have a Chamberlain POWER DRIVE model 248730 garage door opener; I press the button but the motor does not engage and does not travel at all. The built in light also does not light, but the led on the wall switch does light. Also, I hear a click when I press the wall switch and the diagnostic light continuously blinks 5 times; supposedly this indicates a problem with the RPM sensor, but I don't think so because the motor does not move at all. Please assist

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  • 2 Answers

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Posted on Jan 02, 2017

ktkodama
  • 37 Answers

SOURCE: Remote does not open garage door

It sounds like the wall button has the lock feature engauged.

Is there a small green LED flashing inside the wall button?
Push and hold the lock button for about two seconds and the LED should stop flashing. This will unlock the garage door opener and your remotes should start working. You may have to reprogram your remotes and homelink again since you triedprograming in the lock mode.

Good luck.

Posted on Jan 20, 2009

whirlwindsys
  • 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

  • 1 Answer

SOURCE: have chamberlain security plus 950cb lost instructions.

http://www.chamberlain-diy.com/doityourself/pdfdocs/114A2184.pdf
This web address came from the Chamberlain site. I also needed to relearn my remotes due to a newer car that has a built in garage door opener that needed to be set. I also needed to reset my keypad remote, those instructions I was able to get from the same site. Good Luck

Posted on Apr 26, 2009

freelander72
  • 124 Answers

SOURCE: Garage door does not open, just flashes light and clicks but noth

check remote code

Posted on Aug 13, 2009

  • 1 Answer

SOURCE: 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!

Posted on May 13, 2010

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1 Answer

How do i set the travel limits on my craftsman garage door opener 139.53919


  • Open the garage dooricon1.png fully by pressing the wall control button. The bottom section of the door should be right at the header in the "full open" position. If it is too far back, the door cable can become misaligned. If it is not back far enough, you may not be able to get your vehicle in and out of the garage.

  • 2

    Position a stepladder behind the garage door openericon1.png motor. Locate the limit adjusting screws on the left side of the motor housing. Have a friend stand by the wall control button.

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  • 3

    Insert a screwdriver into the slot for the "up limit" adjustment screw. Turn it to the right to decrease the door travelicon1.png and turn it to the left to increase it. Turn the screw in small increments.

  • 4

    Close the garage door by having your helper push the wall control button. Notice the seal between the door and the floor--there should not be any light coming through. Adjust the "down limit" screw in the same way if necessary.

  • 5

    Operate the door by the pressing the wall button and check your adjustments.



  • Read more: How to Adjust a Craftsman Garage Door Opener ' eHow.com http://www.ehow.com/how_5419011_adjust-craftsman-garage-door-opener.html#ixzz2Hm1tx0a0

    Jan 12, 2013 | Sears Craftsman LiftMaster Chamberlain...

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    I have a Chamberlain whisper drive 1/2 hp garage door opener model 9200 and when the weather is rainy or snowy out the door will close fully wait a second then open again. This happens until I can stop it...


    It sounds like the door is traveling just a bit too far in the down direction. Locate the 'down limit' adjustment on the side of the motor unit and turn the control in the opposite direction of the arrow printed on the cover. Some tweaking will be necessary to get it just right.

    Oct 04, 2010 | Sears Craftsman LiftMaster Chamberlain...

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    (Chamberlain 1/2 hp Whisper Drive garage door opener) the garage mounted opener will open the door, but none of the remotes now work. batteries have been changed already. Is there a way to reprogram the...


    If the wall button will operate the door up but none of the devices do then look at the wall button. Find the lock button and push it for 2 seconds and then try the remotes again. This is your vacation lock. You can get a manual at chamberlain.com. Now if the door does not open or close with the remotes you can reprogram them. Press the colored learn button on the motor head and then press the button on the remote. Repeat for each remote. If they fail to program you will need a new logic board. Thanks BB

    Aug 18, 2010 | Chamberlain 1/2-HP Whisper Drive Belt...

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    My Craftsman GDO model # 139.53990D does not open when I push the wall button the motor clicks but does not engage. I have been trying to adjust the travel limits and it now moves all the way back to the...


    You need to remove the cover of the motor unit and check the drive gear. It sounds like it is stripped. Your explanation is a little confusing though. You say it moves all the way back to the cover protection bolt and then you say it won't open.

    Jan 03, 2010 | Sears Craftsman LiftMaster Chamberlain...

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    Opener will hum but not engage the drive train.


    If the humming you hear is the motor running you need to remove the cover and check the drive gear. It is a white nylon gear just in front of the motor. If it is the motor humming but not turning you have a bad start capacitor which is held by a bracket and is next to the motor.

    Sep 30, 2009 | Sears Craftsman LiftMaster Chamberlain...

    1 Answer

    Opener will not reverse


    FIRST YOU NEED TO RESET THE CHAIN .

    Unplug power
    Release the door from the opener close the door manually. take the chain loose and slide the traveler down to reengage with the trolley. Plug in power, run the unit with chain off untill it completes a clockwise cycle and stops. reconnect the chain and set tension.

    Adjust the chain tension.

    If it still moves 6-8 inches and flashes 5 times. the problem is in the rpm sensor.

    Full diagnostics are in the owners manual - FREE at
    http://help.chamberlain.com/help/en-us/InstructionManuals

    Oct 06, 2008 | Sears Craftsman LiftMaster Chamberlain...

    1 Answer

    Not working


    IT MAY BE AGAINST THE TRAVEL LIMITER BOLT.

    IF IT IS YOU WILL NEED TO UNPLUG THE UNIT REMOVE THE COVER AND TURN THE MOTOR BY HAND TO BACK OFF THE PRESSURE.

    MAKE SURE YOU GO PAST THE LIMIT SWITCH.
    ADJUST THE LIMIT SO TH DOOR DOES NOT HIT THE BOLT.

    HOPE THIS HELPS

    Sep 07, 2008 | Sears Craftsman LiftMaster Chamberlain...

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