Hi mcq142,

I do not trust those garage door opener. The unit is always on and to
rely on the
control ckts to keep it from opening by itself (100%) without anyone
pushing the
button is scary. I had the same problem with other garage door
openers.

1. you can try reprogramming the remotes. Who knows when you were
reprogramming them a neighbor could have been pushing his remote too.

It will be nice if the power outlet where garage opener is plugged in
can be turned off completely. So, in my case,

My garage door opener has a remote power on/off.
I bought a remote control switch 19$Can at walmart, I use it for
turning on/off power to the garage opener. I made sure I have a light
outside that is on when the garage door opener is powered on. At night
I 'turn off' power to the garage door opener. Also when I go out for
a long time.

Yes I use 2 remotes. One to turn on garage door power, then another
to open the garage door... A little bit incovenient... but the peace
of mind is worth it.

I'm not sure if it will cause problem to the garage door opener. I've
just been using the
setup for a year.

mcq142 wrote:
I have Mac Lift Merlin Series that opens on it's own, especially during
the night. It is used on a one car door size. The larger 2 door model
instaledd in the next bay never has this problem. This has only been a
problem during below freezing temps. Thanks, Tom