posted on Feb, 14 2014 @ 01:23 AM
reply to post by gariac
Except, somehow, from what I was told (I wasn't actually in the door business when it happened), it was happening. Again, this is only what I was
told, and never actually got to see it for myself. Believe it or not, I can actually set up a homelink in a car to open multiple doors, off the same
button, without programming that button to more than one of those operators. In other words, the rolling code is a great technology, but it isn't
perfect. I know this because I had it happen programming up the homelink in a BMW to a garage that had 4 doors in Scottsdale.
It can be a real pain in the neck to track down interference which would cause the radio frequency to be blocked or interrupted, whichever the case
may be. In some cases, it is a matter of shutting off the breaker for each room in the house, one at a time, and trying the remote at each attempt.
Once you find the offending room, you can start unplugging devices one at a time, until you find the offending device. Sometimes, it isn't even
something in the house, causing it to be even more time consuming. I have seen a few things from cable junctions to electrical junctions, like you
would see in the large metal boxes at the curb that have caused the issue. Most of the time, when I come across an interference issue, I recommend
going for the frequency change.
Also, to the other post that recommends having the springs checked, sure that is a good idea, if you want a salesman to come into your garage and tell
you that your door needs an overhaul, regardless of it's age. I know this because it's my job. A very basic check that anyone can do is to put the
door on manual and lift the door by hand. Does it feel heavy? Does it try to fly through the roof? Open the door 1/4 of the way and let go. Does
it crash to the floor or start lifting itself? Do the same at the 1/2 way point, and again at the 3/4 mark. The door should stay at any of these
positions, maybe rising or falling a couple inches at the most. If the door tries to pull itself all the way open or go crashing toward the floor,
call a professional for adjustment or replacement. If you know that your springs are only a few months to a couple years old, in most cases, an
adjustment will most likely do just fine.