Question about Sears Craftsman LiftMaster Chamberlain Garage Door Opener Wireless Keypad Model 976LM Security+

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My Liftmaster 1265 just stops. It's not a force or limit problem. When it stops, the lights go out, the pilot on the opener goes out as do the two sensors. After a minute or so, the lights come back on. I can start the opener again but it usually stops again with all the lights going out. I've verified that the outlet stays powered. I put a voltage tester in the second outlet and it stays on. I also switched which plug in the duplex outlet was being used by the opener. I've discovered that if I tap on the opener, power seems to be restored. The problem has gotten worse over the last few days. The opener now only stays alive for 5 seconds or so.

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The motor is commanded by a relay in the opener - in your case apparently this relay is dying. Try to dismantle it, maybe the relay is just loose on its socket, otherwise you will have to replace it and separate parts will be very hard to obtain.

Posted on Sep 04, 2010

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HI, AFTER REPLACEING PLASTIC GEARS IN SAERS GARAGE DOOR O[ENER, OPENER WILL NOT GO THROUGH COMPLETE CYCLE. WHEN BUTTON PUSHED TO OPEN, OPENER GOES INTO CLOSE CYCLE AND HITS STOP BOLT. ATTEMPTED TO ADJUST...


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1 Answer

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1 Answer

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1 Answer

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1 Answer

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1 Answer

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If the light bulb(s) on your operator are on the front and/or back, the limit adjustment screw is on the left side of the operator (looking from the back of the operator and facing the garage door).. If the lights are on the sides of the operator then the limit adjustment screw is on the left side (looking from the back of the operator and facing the garage door).

Check the up and down force: 
On your operator (the box that hangs from the ceiling). If the light bulb(s) on your operator are on the front and/or back, the force adjustment screw is on the back of the operator. If the lights are on the sides of the operator then the force adjustment screw is on the right side (looking from the back of the operator and facing the garage door). Turn the light blue adjustment screw with the up arrow to a higher number.


Jan 31, 2009 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

The up and down door


If you have a Chraftsman/Liftmaster check the down limit:
 If the light bulb(s) on your operator are on the front and/or back, the limit adjustment screw is on the left side of the operator (looking from the back of the operator and facing  the garage door).. If the lights are on the sides of the operator then the limit adjustment screw is on the left side (looking from the back of the operator and facing  the garage door).
Check the up and  down force: 

Jan 03, 2009 | Sears Craftsman LiftMaster Chamberlain...

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