We have two 8 foot garage doors on our garage. They both have Sears
openers. Recently the one does not respond to the remote from a distance ore
even up close if the door is closed. If it is open it responds. Meanwhile
the auxiliary button opens the other door like usual up to almost 500 feet
so I think this rules out a battery problem with the remote. I have
relearned the remote multiple times but it has not corrected the problem.
Could there be a problem with the receiving unit on the opener or is it just
easier to get a new one. They both are about 4 years old.
Thank for any help.
If the hard wired switch works you can add on an after market
transmitter for about $50. I would use this as an excuse to upgrade to
a screw drive Genie. It opens twice as fast as a regular opener and is
1st make sure that the antenna wire hangs straight down toward the
floor & hasn't got shoved up behind the motor head.
If the antenna is ok the problem may very well be w/ the opener that
works fine (hard to believe but can be true). To find out unplug the
opener that works fine & then test the other one. If it now works the
opener that works has a defective receiver (built-in to the main logic
board) that is no longer shielded properly. Mfgs shield them so they
are supposed to only work 50-75 ft to cut down on interference, but
when the shielding goes out they will send out a signal that is strong
enough to block out the other one. Yours would not be blocking the
other one completely & that is why the remote works when the door is
If it still doesn't work w/ the other one unplugged then the receiver
in the non-working unit is defective but the odds are that the other
one is causing the interference.
You can hook up an external receiver to your unit instead of replacing
the main logic board but you may have to cut a resistor on the logic
board to turn off the built-in receiver or you may have a bigger
interference problem w/ having three receivers very close together.
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