What could be causing your electric garage doors to stop closing?

Answer 1

A short, or potentially an interference in the frequency, try resetting your remote. You may also replace the batteries in the remote.

If this doesn't help, see if you need to clean or adjust the safety sensors. Sometimes when there's too much dirt or one is misaligned it could cause the door to stop in its tracks, however it should also reverse so I think it is most likely the first problem.

An odd problem we had was that the receiver had aged and was able to pick up the signal from a neighbor, so the door would seemingly go up and down at random. In reality, if they drove down the middle of the road, their signal would also make our door respond.