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

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Lightning may have hit garage opener. Not working anything I can check

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Lightning loves logic boards. You can remove the board and check for missing traces on the printed circuit. Unfortunately this is fairly common.

Posted on Jun 23, 2011

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Liftmaster 3265M. Two units. Why does neither work since lightning storm?


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Auto garage door opens will not close not the sensors


Look at the back of the motor unit and see if that little light is flashing a code. Post the code.

Aug 13, 2012 | Sears Craftsman LiftMaster Chamberlain...

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I had a lightening strike at my home. Since then, the garage door does not function with wall switch or remotes. when i press the switch, light comes ON on the door opener and i hear a click but nothing...


Well, I don't think that disconnecting the garage door from the garage door opener would affect function.

The lightning strike could have destroyed the circuitry inside the garage door opener, seeing that it won't operate with the wall switch or remotes.

It's likely that a board was fried by the lightning which would render the garage door inoperable.

Aug 08, 2010 | liftmaster Chamberlain Garage Door Opener...

1 Answer

Champion Liftmaster Garage will not open or close. Just clicks


Pull the logic board and check for burnt or missing traces on the printed circuit. I would guess at an estimate of $125.00 but don't even know where you live.

Aug 02, 2010 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

Same problem same day


Unfortunately there isn't a reset switch but I would pull the logic board and look for burnt or missing traces on the printed circuit board. Electronics do not like lightning.

Jul 17, 2009 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

My Craftsman Garage Door opener stopped working.


The most common part to go bad in these openers when lighting hits them is the logic board. Look for a white and black label that has your model number on it. Go to http://www.usdoorcontrol.com/manufacturers-other.html and find the newest revision board that is made. Repairing this problem is easy.

Jul 15, 2009 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

Sears 1/2hp thinks it is not all the way up and will not go down


It is really a common problem for lightning or electrical surges to take out the logic board. Big expense too.

May 29, 2009 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

Chamberlain Craftsman garage door opener


Replace the logic board. I have seen this problem in the field. More often than not it's due to power surge or lightning strike.

Oct 02, 2008 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

Opener has power but does not open.


The surge probably knocked out one (or more) of the safety sensors.
There may also be a fault on any control board involved.

Each of these components (including the main drive motor) will need checking that they are still working correctly.

Only by a process of elimination will you find the fault. This can be done by checking the outputs of each sensor in turn, and testing operation.

Make sure the system is isolated before atempting this, and ensure a safe working practice is followed.
It's not worth losing fingers over!

Once the fault is found, do not use untill a replacement is fitted.

Hope this helps.

May 20, 2008 | Sears Craftsman LiftMaster Chamberlain...

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