I have come to go on-line for help on the occasions when the garage door opener fails to work. I forget the procedure for troubleshooting one of these units. It has been two years since I had problems with a garage door opener, and that was a different unit than this one.
Garage door will open with remote but not close how to#
We do have a manual for our opener unit, but its troubleshooting section tells you how to check a few basic things, and then says, "You may need to call a technician for repair service." I am not much in the mood to wait for a technician at the time I want to be going to bed, if I can find one who will come late in the evening. Look for obvious physical damage (bare wires, loose connection, cut or broken wire, etc.) The green arrow points to the wire that runs between the sensor and the opener unit on the ceiling. As a precaution, wipe them with a rag or a tissue. It is always possible sawdust could have accumulated on the lenses. That, together with the flashing ceiling light and the need to hold the switch button, are signs something is not right. The other, this one, was weak and it fluttered rapidly.
One sensor on our unit showed a bright steady LED. Some are green and some are red, depending on the manufacturer of your opener unit. It should be bright and show a solid color. In doubtful cases, you can stretch a long string between the sensors to see better if they are aligned. Did something bend them so the sensors are no longer aligned? A quick visual inspection of each should be sufficient. The first thing to check is the mounting brackets (blue arrow). The circuitry inside the sensors is quite reliable and has a long life. Most garage door problems can be traced to the sensors. The text box feature would not save when I did this Instructable, so I am overlaying colored arrows as keys to my explanation. Check to be sure no child's toy or anything else blocks the path for the infra-red light beam. This is, of course, a safety feature to prevent the heavy garage door crushing anyone or anything that might be in the pathway of the door when it comes down. If anything interrupts this beam of light, the garage door will not close and the ceiling light on the opener mechanism will flash as mentioned in the previous step. One sends a beam of infra-red light to the other.
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