If the range improves then the interference is coming from a device in the garage.
Garage door opener losing range.
This poor range situation.
You can also adjust a modern garage door opener s range by operating an external receiver.
Place a stepladder at the area of the garage door.
How to increase garage door opener range.
Any electrical device can be the source of the problem.
Because older garage door openers have outdated components you may have problems changing the range in an efficient manner.
To isolate potential sources of interference turn the circuit breaker off to the garage and plug the garage door opener into an extension cord from another room.
While garage door opener remote.
A lower voltage in the battery.
Improve the performance of an opener and increase the range by adding an antenna extension that you can buy online or at electronics outlets.
Replace the battery or batteries in the remote control.
The batteries provide the power to send the signal.
Remove obstructions between the remote control and the door.