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Machinc
Machinc, General Contractor
Category: Home Improvement
Satisfied Customers: 356
Experience:  Has written home improvement articles since 2008. Earned South Carolina Residential Builders License in 1991.
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I have a craftsman garage door opener model 139.18458DM,it

Customer Question

I have a craftsman garage door opener model 139.18458DM,it is 3yrs.oldIt was installen in the fall of 2010In the summer of 2011 we notice that the door would not close in bright sunlight,and would indicate that the optical sensors were obstructed[which they were not] As soon as the doors were in shadow there would operate correctly. This condition has deteriated and now thev doors will not close in daylight.They attempt to close,reaching 75% closure then going to wide open position. Now they will only close within a hour of dusk
Submitted: 10 months ago.
Category: Home Improvement
Expert:  Machinc replied 10 months ago.
Remote sensors often have trouble in bright sunlight.
Providing shade without interfering with the line of sight is your goal.
It may be possible to place a filter over the lens which would act similar to sun glasses.
Just as a test have someone hold something
to shade the sensor and see how it operates or if it does.
Then the process is how to simplify and make the shading device permanent .
It could be as simple as a piece of metal flashing set at an angle to block the sun but not block
The path of the remote. The sensor is small so the flashing would be small and could be painted to
Match the trim .

Customer: replied 10 months ago.

At the present moment the garage and door opening are completely in shade,but it is still light outside. The door will close 75% then return to fully open. The door will not close until near dusk

Expert:  Machinc replied 10 months ago.
_

.........,.,,,,,,,,,,
/. /
/----------------/. flashing.
O/. Sensor

It could be installed like this .





Expert:  Machinc replied 10 months ago.
This is a link to the kind of flashing I'm talking about,
It is at Home Depot

http://m.homedepot.com/p/Amerimax-Home-Products-4-in-x-4-in-x-8-in-Galvanized-Steel-Pre-bent-Step-Flashing-70708/100039784/
Machinc, General Contractor
Category: Home Improvement
Satisfied Customers: 356
Experience: Has written home improvement articles since 2008. Earned South Carolina Residential Builders License in 1991.
Machinc and 3 other Home Improvement Specialists are ready to help you
Customer: replied 10 months ago.


I will try your tip re shielding the send/receive modules, but it doesn't explain why the problem exists after the modules are no longer in direct sunlight

Expert:  Machinc replied 10 months ago.
I can only answer in theory but some units when exposed to direct sunlight
take a while to recover. Kind of like when you stare at something and then look away you still see
It's shape.
Some photo cells can be permanently damaged by direct
sunlight. Hopefully this is not the case with yours.
Let me know how you make out
Expert:  Machinc replied 9 months ago.
I will be very interested in how this work for you .
Let me know please.
David Machado

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