I have a craftsman 1/2 hp garage door opener.My hand held remotes / keyless entry pad work infrequently.Sometimes they open / shut garage door and mostly they dont function.
Could you please help .Thanks
Could be a bad wall button or a smashed wire.
Anytime a door opens and/or closes by itself, or remotes work intermitantly I look for a smashed wire between the motor unit and the wall button or a bad wall button.
If the wire is smashed the insulation becomes so thin that power will leak thru the insulation and activate the door or interfere with the remote.
Loosen the staples with a small screwdriver and slide the wire about ½ inch to move any areas of thin insulation away from the staples.
The second thing would be a bad wall button or a remote with a sticking button.
Or a remote in someone’s purse that gets the button pushed by other stuff in the purse.
The test is to disconnect the push button wires at the power unit. If the self operation / interference stops you have located the problem. If you reconnect the wires and disconnect the wire at the wall button this will tell you if the problem is the wire or the button.
HOPE THIS HELPS
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If you put the remote 2" from the antena do the remotes work?
Do they work with the door up and rarly when the door is down and you are outside?
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