My liftmaster 1/2hp Security+ started acting strange today. It will open or close only about a foot and then it stops or sometimes reverses. Very strange. I know it's not the sensors at the bottom of the door, because that's how I got it up, by sticking my hand in the path of the sensor so it would go up (A little bit at a time). Any help would be very much appreciated. It is a lift master 1/2hp security+ ,chain drive with a model # of 1265LM and a control panel # of 41A5021E.
Thanks
Rick
Hi Rick
I believe best and safest solutions is resetting and re-programming the system. here is the instruction manual link;
http://www.hooverfence.com/catalog/entry_systems/lift_master/976lm-manual.pdf
Also you can call the hotline (1-800-528-2817) of the manufacturer for the step by step reset and re-program the system
Good Luck
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Hi AvioriX,
I must have forgotten to mention that my model of Liftmaster Garage door opener doesn't have a wireless keypad. But the good news is the problem has appeared to resolve on its own. Maybe the fact that it was 1 degree here last night when it started acting up had something to do with it. Anyway,thanks for your help :)
Rick
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