In order to fix this you ll want to make small changes to the close limit setting until the door opener knows to stop once the door has reached the floor.
Xtreme garage door opener stopped and started flashing.
Why is the light blinking on my garage door opener.
Wrong mode garage door openers have different modes besides just normal operations.
Problems with sensors your garage or overhead door has a safety sensor system attached to it.
If the opener is in the wrong mode it will begin to flash the lights when you try to open or shut the door.
Make sure the photo eye safety system is aligned and clear of obstructions.
Check the lock button.
The opener does not close the door and the indicator on one of the photo eyes flashes.
If the opener cannot detect that the safety sensors are properly working or connected then the opener lights will flash and the door will refuse to close.
Start by locating the lock button on your garage door opener.
The door reverses upon touching the floor and the courtesy light flashes.
The purpose of the safety sensors located on the bottom corners of your garage door is to automatically reverse your door if they detect motion underneath the door.
If your garage door is closing fully and then reversing to open again then it may be due to a problem with the close limit switch.