why does my garage door close then open by itself
The garage door opener limit switch tells the motor that lifts and lowers the garage door when to stop running. Incorrectly set limit switches may prevent your garage door from closing completely or opening all the way. They can also cause the opener to reverse or pull back up when you attempt to close it, which can seem like a malfunction or that someone else is using a garage door opener remote that is on the same frequency as yours. This is actually caused by a safety mechanism meant to protect people from being hit and having the door close on them. Resetting the limit switch will stop your garage door from behaving erratically.
Possible Reasons Why Your Garage Door Hits the Floor, Then Goes Back Up As is the case with so many issues at the home, there s no one reason why your garage door closes, then opens.
Here s a rundown of some of the possible reasons this can be happening: Travel Down: Your garage door is programmed to travel a certain distance before it closes. If it closes before that distance has been traveled, it thinks something is wrong and it reopens to help prevent any damage or safety risk.
But changes in weather conditions can causes your garage door components to shift or contract. When that happens, the distance your garage door needs to travel may change. In cases like this, your travel down setting simply needs to be adjusted to the new distance. Limit Switch: Much like your travel down setting, your garage door opener s limit switch governs where your garage door stops when being raised or lowered. If your garage door isn t staying open or staying closed, you may need to adjust your limit switch, which requires only a flathead screwdriver.
Logic Board: Your garage door s logic board is the brain of your garage door opener. This brain can wear out in time, so you could need a replacement. When the logic board wears out, it can cause your garage door to close, then open (and vice versa) without explanation. Before you break out your toolbox or call a professional for help, take a look at your garage door s threshold. If there s anything that s blocking the threshold even slightly, your garage door will sense the blockage and reverse the direction to prevent damage or threats to safety.
If the threshold is clear, the issue could be any number of things in addition to the problems listed above. Check out. You can also consult your garage door opener s instruction manual for troubleshooting guides. At Clopay, we work with a nationwide network of Authorized and Master Authorized Dealers. These are local service professionals who provide outstanding customer care. Many of our Dealers also offer quality garage door opener maintenance, repair and installation. Visit our Where to Buy locator to find a Clopay Authorized or Master Authorized Dealer near you.
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