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Garage Door Opener in Freezing Weather

Posted by clayton-fixit (My Page) on
Sun, Jan 18, 09 at 10:53

My craftsman garage door would only go down a few inches and then go back up when it was below freezing outside. If I held the button on the wall down the whole time the door was going down, the door would go all the way down. But using the remote opener would not work. Here's how I fixed the problem.

The "eyes" at the bottom of the door are in rectangular plastic boxes mounted in U shaped pieces of metal. I figured that the circuits in those boxes were getting cold and expanding, creating contacts that interfered with their operation. The opener is over 10 years old. So I put coats on them. I wrapped the U shaped metal (sides, top, bottom and back) with rubber pipe insulation (any type of thick good insualation would probably work). In essence I insulated all around the plastic box and metal cover, leaving an opening on the front so the eyes could beam their light back and forth.

Let me know if this works for anyone else or if it's just a fluke that it worked for me.

Follow-Up Postings:

RE: Garage Door Opener in Freezing Weather

Same problem here but I fixed it a different way. There is a capacitor that is going bad in the receive unit. It works in warm weather but not in cold. I removed the sensor from the bracket and using a strong knife blade and a prying screwdriver, cut it open along the seam that runs lengthwise around it. Careful not to lose the lens. The printed circuit board pops out easily. There are two capacitors on that board, a big one and a small one. The big one is the bad one. Go to Radio Shack and buy an identical replacement and solder it in the same way as the old one (observe positive and negative leads). Put it all back together. I used black electrical tape to seal it and keep the dust out. Mount it in the bracket and it works like a champ.

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