I had a failure of my garage door opener after about 2 years. After a lot of wasted time trying to reprogram, I checked the wiring to the garage switch and whoever installed it apparently didn't get all the insulation removed under the screws. I don't know why it took so long to fail. Cleaning off the insulation under the screws solved the problem. Last night I opened the door with the switch in my truck. When I hit the garage switch to close it, all I got was two buzz sounds from the motor. I hit the light switch on the opener and then hit the door switch. Sometimes that works. If the light at the opener is on by the light switch, the opener won't work. I gave up and closed it manually. I noticed that one of the two lights at the motor wasn't on. Don't know if that could cause the problem. I'll try and track down the problem today.
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