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Garage door inconsistent.
Garage door openers manufactured after 1993 include sensors to prevent a door from closing on a child or pet.
To test trigger the remote while standing close to the motor unit if the door opens consistently from that close distance interference is likely the problem.
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If you are wondering why your garage door opener only works sometimes there could only be two likely reasons.
Garage door opener inconsistent operation.
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If you garage door is lowering then reversing back to the open position there could.
It s either the battery in your remote is dying or low at voltage or one of your neighbors might be using the same wave frequency as your door.
Replace the batteries in your remotes.
Below are some ways on how you can resolve this issue.
Radio interference from other devices such as photoelectric sensors for security lights can prevent the garage door opener from responding to the signal from the remote.