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My Guardian 21230l Door opener light is no working? I have replaced the bulb twice in 7 years, but now nothing happens. Any ideas?

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Trace circuit, back through the wiring, through the switch, and back to the source, using a meter.

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I have a problem with a guardian 21230L garage door opener when you push the button the light flashes but no door movement happens can you help cheers


if your saying that the light on door opener housing is flashing then stopping after a few moments , this is a sign of a fault in door safety's , either the door has to much friction now to move or beam detectors have sensed a problem

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How do I remove the lens cover for the light on a Guardian garage door opener 21230L?


Not sure about the Guardian, but it should be in the installation manual which can be downloaded, if you don't have the original. On my "Linear" brand, you just have to press the plastic cover at the right place and it releases.

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check all the wiring and be sure it is not pierced by a nail or staple

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Sounds like you need a replacement remote.

Feb 11, 2014 | Garden

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I have a problem with a guardian 21230L garage door opener when you push the button the light flashes but no door movement happens can you help cheers Tom


I have the same problem. Door does not open or close when press the push button and/or transmitter. The light flashes 5 times. Manually open or close the door is ok. On the manual troubleshoot, it says it's either the opener is overheated or it's on vocation mode. I don't know how to switch of vocation mode. Is it possible the thermal sensor is broken?
Can someone help?

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No power to the water dispensor or other buttons on the door


it has to be one of many things the Control Board or Double Outlet Water Valve,Dispenser Door Solenoid


Here to help
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Craftman Garaged Door Unit Stopped Working


This sounds like you will have to replace the logic board. Whether you repair or replace get a surge protector 900 joules or higher unless you want it to happen again. You can get replacement parts at searspartsdirect.com. Thanks BB

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