HELLO, IS THERE ANYWHERE TO DOWNLOAD A OWNERS MANUAL FOR A STANLEY PREMIER 4100.43 GARAGE DOOR OPENER THAT YOU KNOW OF?

Go to Stanley website, poke around until you find manuals for such things. You can usually download a PDF of what you need. If not just print the page(s) you need

http://www.teknuw.com/garage-door-opener-installation-manual/stanley/

https://www.manualslib.com/products/Stanley-U-Install-3760134.html


If you can identify the model number, it may be possible to locate a manual from 1997 using the internet with http://www.google.com

According to one of the web sites above, "Stanley stopped making garage door openers and gate operators in 1997. Spare parts can be difficult to find however original and compatible remote controls are still widely available, most of the remote controls used by Stanley were manufactured by the Linear corporation.
Stanley made garage door openers for other companies and many parts are interchangeable some of the brands they manufactured for are Vemco, U-Install, Quiet Glide, Light Maker, Home Innovative, Whistler, Popular Mechanics, and Secure Code."

https://www.justanswer.com/home-improvement/7enbn-stanley-garage-door-opener-model-440-51-garage-two.html

the following links should help
Stanley Opener 440 OpenerRemotes Chart http://www.thehealthhome.com/stanley-garage-door-opener-manual-440.pdf

Hi. Have you checked the specific manual?

There are a few here:

http://www.teknuw.com/garage-door-opener-installation-manual/stanley/

Try searching around here to find similar or hopefully exact opener. Stanley no longer is in the garage door business, and the company that bought them out went bankrupt.
Good Luck
http://www.teknuw.com/garage-door-opener-installation-manual/stanley/

go to this link, they will help you: http://stanleyremotes.com/?gclid=CNG0zKK3hL8CFQwDaQodpEYAYA

use the internet.

THE OLD STANLEY UNITS ARE NOT WORTH FIXING.

PARTS ARE NOT AVAILABLE AND THE UNIT DOES NOT MEET THE SAFETY STANDARDS

TIME TO BUY A NEW CHAMBERLAIN / LIFTMASTER / OR CRAFTSMAN OPENER

GOOD LUCK

Here is some programming info for the Stanley.

http://www.aaaremotes.com/standualcodl.html

The programming information for your Blazer should be in the owners manual.

the door beams are not working properly. Let me know what you find