​Here are some possible reasons why your garage door hits the bottom then goes back up:

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Limit Switch May Need To Be Reset: Much like your travel down setting, your garage door opener’s limit switch governs where your garage door stops upon being fully opened or closed. If your garage door isn’t staying open or staying closed, you may need to have your limit switch adjusted.  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. Possible reasons why your limits could be off are:

• Your door got shut hard on an object

• A thunderstorm or electrical surge

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Malfunctioning Logic Board: Your garage door’s logic board is the brain of your garage door opener. When the logic board wears out, it can cause your garage door to close, then open (and vice versa) without explanation. Possible reasons why your control board may need to be replaced:

• Your board is getting old and ready to retire

• A thunderstorm or electrical surge

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The garage door opener limit switch tells the motor that lifts and lowers the garage door when to stop running and your logic board is the brain of your door opener. 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. If your garage door goes back up after closing, give us a call and we will offer free diagnosis and give you options for simple adjustment or more involved repair.