Question about Building Materials
In the last week or so, the garage door remotes work normally of OPEN but only at short range on CLOSE. Replaced batteries on both remotes. No change in this behavior. If it's RF interference, then it would have to be at the CLOSE frequency and not the OPEN frequency .. if there's any difference. Can't imagine what source of interference anyway. So....?
Try adding on the antennaes, ive had success with this in the past
Posted on Nov 30, 2014
Testimonial: "I found the problem: Modern light bulbs such as fluorescent AND LED can generate radio interference. I had installed an LED bulb in the door opener. That was the problem."
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Posted on Jan 02, 2017
If you look were the small wires attach to the opener there should be a red program button and instructions on how to program remotes.
Posted on Feb 06, 2009
On the rear of the motor unit just to the left of all those white wires you will find a small LED. Random flashing is normal but if it is flashing rapidly it shows some type of interference. If this isn't happening then the most common thing is a logic board going bad.
Posted on Sep 01, 2009
It sounds like a case of your keypad losing signal strength enough that it cannot transmit through the closed door. If a new battery doesn't do the job a new keypad will.
Posted on Sep 12, 2009
Greetings LiftMaster Owners:
You are probably getting signal interferences from other devices in the neighborhood or from your home that are on the same frequencies as your remotes and garage door openers. Weather conditions can lock signals and frequencies into a much smaller area concentration causing these interferences. Check you home owner manuals for the grarage door opener and see if there is an adustmen on the garage opener that can strengthen your signals. Good Luck
Posted on Oct 14, 2009
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