Why does my craftman garage door opener flash a code 55?

Have a garage door opener and it flashes code 55. Can't find out why,
I need some information on it. It was baught at Sears, but no one
can give me any help. It still works but the button has to be held down.
bdarlingrebecca
Asked Jan 10, 2010
Craftsman garage door openers flash the LED next to the Learn button to indicate a component failure. Realign the safety reversing sensors so that the LED on the receiving sensor glows steadily. ... Unplug the garage door opener to reset the logic board.
lockoutgarage
Answered Jan 17, 2020

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