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Craftsman 1/2HP GDO Help!!

Posted by smcnerney (My Page) on
Wed, Oct 31, 07 at 15:53

I have been reviewing previous posts like crazy and I can't seem to find my exact problem already listed. My door will open just fine, but will only close if I am holding the wired button. If i just push the button or use the remote, the door moves 2-3" and then returns to the up position while blinking the light about a dozen times. My optical sensors are aligned (I think). There is a steady green light on each sensor. However, that steady green light never changes, even if I point the sensors in opposite directions or put a shovel in the middle of the beam. Have my sensors gone bad? The opener was manufactured in 95.


Follow-Up Postings:

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RE: Craftsman 1/2HP GDO Help!!

The light on one of the sensors will stay on but the other will go out when the infrared beam is interrupted. It sure sounds like you have bad sensors.


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RE: Craftsman 1/2HP GDO Help!!

Thanks for the reply Don. I'll double check to make sure both lights are staying on. Will the lights only change while the door is in operation? Or should they go out whenever the beam is broken?


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RE: Craftsman 1/2HP GDO Help!!

One of the lights will stay on. The other will go out when something is in the way of the beam.


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