Question about Chamberlain 1/2-HP Whisper Drive Belt Drive Garage Access System

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My uncle and i were trying to install a chanberlain garage door opener but we had some problems.when we finish intalling the garage door opener the door just goes up and down we do not know what is the problem.

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You may need to adjust the safety settings. These limit the travel of the door, you set the down position, and the up position. If these are not set than the opener will come to the end of the doors travel and change direction when it senses resistance. Consult your instalation guide on how to properly set these devices to your model. Furthermore make sure that the Photo eyes at the door opening are installed, aimed and working properly,

Posted on Oct 06, 2009


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How to reconnect trolley

Terry, The last link talks and shows how to install trolley. Check the attached links,instruction and guides, Good luck
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Don't know Mod. No. lost installation manual, approx. 5 yrs. old Need installation manual.

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    [PDF]GARAGE DOOR OPENER Model 3265 1/2 HP ... - LiftMaster Chamberlain GroupFasten the manual near the garage door after installation. .... This garage door openerhas been designed and tested to offer safe service provided it is installed, ...

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Feb 03, 2016 | Building Materials

1 Answer

Can only open my garage door if i`m 5 feet in front of it. started doing this shortly after at@t installed a uverse box in my front yard.

This is most likely caused by radio interference. Try to re-learn the remotes to see if it will correct the problem.

Oct 01, 2014 | Genie Garage Door Opener 2562-TC 1/2 HP AC...

1 Answer

We need to reset the code for our Chanberlain Liftmaster garage door opener. How do we do that?

The old systems use a series of little switches, you set them all to the same setting.

The newer systems use rolling codes and invite process. Have the remotes in your hand, get a ladder and climb up to the opener unit. Read the instructions there, but essentially you press a button on the unit for x seconds (usually short) then press the remote button, and repeat for the 2nd remote.

Some designs you hold the button on the main unit and press the button on the remote, but usually a long press of the button on opener, erases all codes

Oct 11, 2010 | liftmaster Chamberlain Garage Door Opener...

1 Answer


New door openers have a different radio frequency than the old models. This is most likely your problem and you will need to buy the keypad that is compatible with the new opener.

Sep 14, 2009 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

I just installed a new Stanley ST405 garage door opener. During the Door position adjustment, the garage door opener got stuck in the fully open position. The traveler release is also stuck. Any...

You will need to loosen the chain, This releives the pressure and allows you to make the needed adjustment to the limits (at least 2" from the stop bolt).

Apr 02, 2009 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

Keypad for chamberlin garage door opener stopped working

You need to reprogram the keypad. Press and release the learn button on the back of the motor. Within 20 seconds, press your four digit code into the keypad and press and hold the enter button until the lightbulb on the motor blinks once. You are finished.

Feb 24, 2009 | Sears Craftsman LiftMaster Chamberlain...

2 Answers

Garage door opener not working/no power??

No light at all on your opener? Zero none on your sensors or on your wall control? What about on the opener it self do you have lights in it? it really can only be two things I can think of. with otu seeing it One guy said check you wires. I would say tahts a great place to start I would unplug the wall control wires. Sometimes not too much with newer openers but if they got a staple in the wire it can cause a dead short. When you unplug the wire from the open it's self. Try it. If that does not work try plugging in something to the plug where the open is at. And make sure its not on a switch. Oh one last thing when you use it remote or wall control do it make any sound at all?

Feb 05, 2009 | Sears Craftsman LiftMaster Chamberlain...

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