If this doesn t fix your problem then the problem is more than likely the safety reversing sensors.
Garage door not closing light flashing.
Simply hold down the lock button on the wall control for about two seconds to disengage the lock.
Okay now that you know some of the common signs of garage door sensor malfunction you re ready for the next step troubleshooting.
To unlock your garage door opener push the lock button for 5 seconds.
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.
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.
Once you push this button the light on the garage door opener will flash twice.
If your garage door sending sensor is showing a yellow light and the other does not show a green light it is likely they are misaligned.
Garage door sensor locations.
Clutter or obstructions that block the sensor are the first problems to look for if your door won t close or in extreme cases open at all.
The blink rate on the garage door opener service light points to various error codes.
First check the sensor lights.
Other signs include flashing garage door opener lights missing sensor light or flashing sensor lights.
3 light flashes problem.
Once you see the double flash press the control button on the remote control.
Depending on the brand.
If your garage door opener is still blinking try realigning the safety reversing sensors.
Led is not lit on door control.
If motor unit activates replace door control.
If motor unit does not activate disconnect door control wires from motor unit.
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.
Disconnect wires at door control touch wires together.
If the light flashing persists then the problem may be wire related.
This is a common garage door safety feature that prevents injury and damage to personal belongings.
The locking feature is meant to prevent garage door remotes from opening your door.
The back of the motor has a circuit board with a service light as well.
Lights on garage door opener flash and door will not close garage door light flashing but won t close when you see you garage door opener lights flashing and the garage door will not close it could be the lock button or the safety reversing sensors.
You may want to check the back of the motor unit.
Only the button on the wall control or manual keypad inputs will open it.
