Garage door sensor hood

by SirGeekALot, published

Garage door sensor hood by SirGeekALot May 3, 2013
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2527Views 408Downloads Found in Household


My garage door has a light beam sensor safety feature to prevent closing on an object. At certain early morning hours beginning in late spring, sunlight can overwhelm one of the sensors. This usually happens when my girlfriend is leaving for work early in the morning, so I need to get out of bed to close it manually.

Necessity is the mother of invention. I have a Printrbot Plus (with Super-Z!) so the fix I decided on was to print a tubular sun hood to prevent this from happening in the future. A quick measurement with digital calipers (an investment that seems wiser every day) read the outer diameter as ~11.23mm, which is more likely to be 7/8”, but whatever.

Anyway, I have no idea if this will be useful to anyone but me, but here it is. Enjoy!


  1. Print it out.
  2. Put it onto your garage door sensor.
  3. Enjoy more sleep.

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"Anyway, I have no idea if this will be useful to anyone but me, but here it is"

Absolutely useful to me! I have the same problem certain times of the year (and it even looks like the same sensor as mine- cobwebs and all). I'd swap the sender and receiver like Mudfoot suggested, but with the orientation of my house I'm pretty sure that would just mean I'd have the problem in the morning instead of the afternoon. Thanks for a great solution.

I'm in the Garage door business. Just reverse the photocells so that the sunlight will shine on the sender rather than the receiver and your problem is solved.

i had this problem and called my garage door installer, he said the same thing, 10 minutes to swap sides and no more problem.

My garage door opener gets temperamental with the evening sun, facing west as it is. I may try this out!

Yeah... Happens to us in the morning right about this time of year. Good idea.

My friend had this exact same problem a number of years ago. It took him a while to figure out what the problem was. It only happened once a year on certain days. He just ended up moving the sensor behind the wall.