Questions & Answers for: rail garage door opener bowing

Rail bows when door is closed I have a Chamberlain Whisper Drive modelHD600. I've check and checked and have no idea why the main rail would bow when the door closes all the way, its subtle but still ...

...garage door. i have a 1/2 hp 315 mhz model 139.5391d belt drive opener. i am 29 yr vetran car and heavy equip. mechenic. i installed the unit as per the manual to the letter,but the when the door is ...

...doesn't matter. If your door is hitting the floor and then reversing it is traveling too far in the down direction. Locate the 'down limit' control on the side of the motor unit and turn ...

...garage door but doesn't close it. I checked the side sensors they look OK & clear, and I Re-Programed the control remote but it still doesn't close the garage door. It could be the garage ...

...garage door opener inside the garage doesn't open or close the garage door. How do I diagnose? The model # is: 41A5389-1B The model number you give is a part number for the logic board. Does your ...

...door ok. Note: When trying to reprogram the lighton the unit won't blink. Sounds like the receiver portion of your logic board has quit. The wall control is hardwired and doesn't use the ...

Garage door will not close from remote or car. Garage door will open from remote or car; however, it will not close using these controls. The only way I can close the garage door is to press on the ...

garage door senser not working Chamberlain garage door opener . It works open and close but the senser does't work with obstacle What doesn't the sensor do with an obstacle? One possible ...

...garage door, it should be quite easy you need to release the traveler  from the rail so you can open and close the door manually/by hand then, while open the door on the knee level ...

...garage door, within 6" or so the door seems to be getting pulled instead of lifted and the rail bows upward leaving one side of my belt with more tension on it and the other side with a lot of slack. ...