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My Lynx 455 Automatic Doorman just buzzes when I press to open the garage door.

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Posted on Jan 02, 2017

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SOURCE: Automatic Doorman model 455 learn button location?

The button should be on the back of the motor unit. You may have to remove a light lens to find it.

Posted on Oct 06, 2010

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How & where would I get parts to repair my Lynx 455 garage door opener, installed in 1989 ?


Wow - lots of hits. Google: Lynx 455 garage door opener parts

This will start with service vendors who have parts and are close to you. After that, you will see the manufacturer pages.

Mar 03, 2015 | Building Materials

1 Answer

Where does the wires hook from motor to where? Automatic Doorman 455


Is the door opener motor bad? You say, "the wires"--is there a plug on the end of the wires that can be plugged into an outlet? If so, thy plugging it into an extension cord instead of the outlet in the garage ceiling and see if you still trip a breaker. If you do, it's a problem in the opener. There are things to do to locate the source of the problem. It the breaker trips instantly when you press the button then there's a dead short somewhere. Does the motor get warm or hum before the breaker trips? If so, then maybe the door mechanism is locked up and the motor cant turn. Did you check to see if your garage door is locked?

Nov 26, 2014 | Building Materials

1 Answer

Installed two new springs on automatic doorman model 455 and it won't close or open. chain will not move door where are adjustment screws? I think that may be the problem


Does it make a noise? Did it run before you changed the springs? Did you replace springs on opener or on the door? What adjustment screws are you looking for? Do you think they went out of adjustment when you changed the springs?

Sep 04, 2011 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

Automatic Doorman model 455 learn button location?


The button should be on the back of the motor unit. You may have to remove a light lens to find it.

Aug 01, 2010 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

I have an Automatice Doorman model 455 garage door opener. I recently changed the battery for its remote control. How do I reprogram the remote control?


Your opener is very old and not only are there no parts available but it is not a programmable system. Your best bet is to buy something more up to date which will be much safer to operate.

Jul 29, 2010 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

Hello does my lynx 455 plus sensors have lights


Not familiar with lynx but every sensor I have seen or heard of has a light. It is the only way to tell when they are pointed correctly at one another.

Jan 08, 2010 | Sears Craftsman LiftMaster Chamberlain...

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