This thread suggests isolating the garage door opener from interfering devices by placing a 3 foot x 3 foot square of aluminum foil on the ceiling above the opener.
Interference free garage door opener.
How to remedy interference between your garage door remote and another appliance.
If this is the case a new control panel may be your best bet.
First you have to identify what is causing the interference.
The location of the garage door openers signal may be blocked by some of the other devices in your home running on the same frequency.
Turning your antenna in the opposite direction of high frequency signals can divert unwanted interference from disturbing the frequency of your garage door opener which in turn can improve its operating ability.
The genie girud 1t universal conversion kit was made to fix this issue.
Some garage door openers may only work on a single frequency this kit is a dual frequency upgrade so if there is frequency interference on the 390mhz most commonly used in garage door openers then it will automatically switch to a 315mhz.
Generally when it comes to garage door openers it s ensuring that you use a professional garage door service to minimize this from happening.
Unfortunately if the control panel for your garage door opener is older it may be more prone to radio frequency interference.
Locating and adjusting the antenna inside of your garage can change the frequency on your garage door remote.
If you re experiencing problems with range you may have a weak battery at play as well as radio interference or physical interference.
For instance the liftmaster 888lm offers the ability to monitor and control your garage door right from your smartphone including the opener lights and more.