Look for a small black button behind the lens light of the head receiver on the door opener near the antenna.
How to change a garage door opener frequency.
How to change the frequency for a garage door opener.
First you ll want to open the access panel on the backside of your garage door opener.
Press and hold this button.
Raise the garage door manually to the full up position so that the garage door is open.
Now you ve reset your door codes and your remotes should not work.
Unlock the garage side door or other entrance to the garage so that you do not inadvertently become locked out.
Point your door opener remote toward the head receiver two feet or closer and press.
Change liftmaster garage door opener frequency posted on june 9 2020 by bandi ruma on garage door opener remote garage door openers that are patible belt drive wi fi garage door opener garage door won t open with remote 877max wireless keyless entry system.
The basic process goes something like this.