I just purchased a Sears garage door opener to replace an 8 year old
Liftmaster opener. I'm unable to get my old Liftmaster Security+
remote controls to work with the new Sears Security+ garage door
opener system. My understanding was that all Security+ remote
controls would work with any brand. Is this not true?
On Sat, 29 Dec 2007 15:36:01 -0800 (PST), email@example.com wrote:
Your new system may be running on a 315 MHz frequency, which your
older remote may not be designed to use, more likely using a 390 MHz
frequency. You could just order more of the new remotes online:
garagedoors.net was good about answering some questions I had.
I would agree, the frequencies are probably different. New military
radios blocked the 390 freq in many areas so they went to the 315 freq
to avoid them. It's very easy to tell. If the old opener has a gray
antenna wire on the motor head it is 390 & if the new opener has a
purple antenna wire it's 315. No they do work w/ each other. If both
of the antena wires are the same color then they should work. Both
brands are made by the same company.
It it is a rolling code and works anything like Homelink in my new cars,
following instructions in manual did not work. After following instructions
I had to repeat last step several times and hold it down instead of just
pressing and releasing to get it to work.
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