My remote garage door openers are not working
I have 3 remote openers. They were all working and I think I reset all of them by accident. Now, I can activate 1, but when I try to activate the next one, it will work, but the 1st one stops working. I have the manual and am following the instructions. Craftsman Model 139.53681B
B b g...
Expert
This indicates that your logic board is bad. Do you have a surge protector on the unit? You need one 900 joules or higher on it. You can go to searspartsdirect.com for a new one. Click on the contact us icon for help. Make sure and have the model # ready. Thanks BB
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