“Why is my garage door opener opening both doors?”, is this question troubling you these days? Rather than opening only one garage door as requested, your garage door opener opens both.
The remote that controls the opening and closing of the garage door receives signals from the garage door opening device. You must have two door-opening devices to control two garage doors.
However, if the same channel is being used by both opening devices, this can sabotage the door opener’s performance and lead to the wrong door being opened.
This means, that if both doors are using the same channel, they can be controlled simultaneously. That is when you want to open one garage door and end up with both doors being opened.
The remote-control memory of the motor of the garage door is the main culprit in the situation, having 821LM slots enrolled.
While connecting the garage door motor to the hub of the opener, you should unplug the connection of the door motor that you don’t want to be controlled.
In case, the motors of both doors are plugged in, opening and closing commands will act on both doors at the same time.
The solution is to wipe away the motor’s remote-control memory. However, it is very important to re-enroll the remotes and codes once the remote-control memory deletion process is completed, you may take help from the motor’s manual in this case.
Resolving The Issue – 9 Easy Steps!
Can one garage door opener open two doors? Definitely, yes! It might happen that you sent a command to open one door but both the doors opened.
To solve this issue, you have to erase the motor’s remote-control memory and then re-enroll the codes of the motor of that door that you want to be controlled through that device’s hub.
To do this, follow these steps:
- Step 1
Clear out the motor’s remote-control memory.
- Step 2
The Wi-Fi hub might contain information regarding the door. Delete that information. For this, press and hold [1] on the remote and then press the and hold [2] button.
- Step 3
A yellow light will appear. Wait for that light to turn off. Once the light has turned off, this means that the memory for that slot has been wiped off.
- Step 4
Once the yellow LED light has been turned off, release the [1] and [2] buttons.
- Step 5
This is a very important step. For the motor that you don’t want to be enrolled in, for example, motor “B”, turn it off.
And just enroll the motor that you want to be controlled by the device’s hub, for example, motor “A”. - Step 6
When the motor “A” has been enrolled, power it off.
- Step 7
Power on motor “B” and now go through the enrollment procedure for the garage door linked to motor “B”.
- Step 8
Once the enrollment process for motor “B” has been done, power on motor “A”. now both the motors have been powered on.
- Step 9
Now it’s time to verify if the garage door motors are functioning properly and accordingly the commands they are being given. Check this through the remote commands.
The main thing in these steps is that while enrolling one motor, the other one has been turned off. If both motors remain powered on, this might mess up the process.
However, you can always make things right by following the step-by-step instructions given in this article. By following these steps, you may open and close both garage doors independently.
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- How To Factory Reset MyQ Garage Door Opener
- Best Garage Door Openers Under $200

I am Jeff Bortnick, the founder of SMART WISE HOME. I am also a husband, father of two, and a long-time technology lover. I have been obsessed with home automation since I was at University doing my MSc in Automation and Control Engineering