Question about Chamberlain 3/4-HP Power Drive Chain Drive Garage Access System

1 Answer

My chamberlain whisper drive, 3/4 hp, motor hums with 5 flashes. Door works o.k.

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  • Chamberlain Master
  • 12,962 Answers

Something in the drive is jammed preventing the motor from spinning. Correct the problem lest you will burn out the motor if allowed to hum and overheat.

Posted on Nov 24, 2013

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Posted on Jan 02, 2017

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SOURCE: Hi there. I have a Chamberlain Whisper Drive

I just had that problem this morning and the cause was that the springs that help hold the weight of the garage door were broken. This caused the garage door opener to raise the garage door a fe inches and then drop again. We called in a professional and $200 later we had new springs and everything works fine now.

Posted on Dec 17, 2009

swolfinor
  • 504 Answers

SOURCE: door would not close all the way

DOES IT REVERSE OR STOPS BUT NOT TOUCHING THE FLOOR?

IF IT DOESN'T TOUCH THE FLOOR YOU EITHER NEED TO ADJUST THE DOWN TRAVEL OR LENGTHEN THE CONNECTING ARM.

IF IT REVERSES YOU NEED TO DETERMINE IF IT IS THE SENSITIVITY OR THE SAFETY EYES.

Posted on May 27, 2010

blanchettohd
  • 143 Answers

SOURCE: The belt on my Chamberlain Whisper Drive dipping

Where the belt attaches to the trolley carriage which attaches to the door there is a black adjustment nut with a spring on it. Tighten it up more by turning it clockwise until the belt tightens up. The belt will droop a little when the door is all the way shut normally but should not during operation. If you tighten it up too much the belt will slap on the rail during operation. Make sure the spring is set on the adjustment screw too. This holds the belt tight over time. Thanks BB

Posted on Oct 11, 2010

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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

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Door would not close all the way


DOES IT REVERSE OR STOPS BUT NOT TOUCHING THE FLOOR?

IF IT DOESN'T TOUCH THE FLOOR YOU EITHER NEED TO ADJUST THE DOWN TRAVEL OR LENGTHEN THE CONNECTING ARM.

IF IT REVERSES YOU NEED TO DETERMINE IF IT IS THE SENSITIVITY OR THE SAFETY EYES.

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1 Answer

Hi there. I have a Chamberlain Whisper Drive


I just had that problem this morning and the cause was that the springs that help hold the weight of the garage door were broken. This caused the garage door opener to raise the garage door a fe inches and then drop again. We called in a professional and $200 later we had new springs and everything works fine now.

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