If an object has misaligned your sensor eyes then it breaks the electronic beam preventing the garage door to close properly.
Garage door opener will not close door light is flashing.
Once you see the double flash press the control button on the remote control.
Check if the safe t beams red led light is flashing.
At times the garage door opener can malfunction and the garage door will not open or close.
If your garage door opener is still blinking try realigning the safety reversing sensors.
Counting the number of times this light flashes will allow you to know the exact fault.
Four flashes is the most common reason your opener lights may be flashing is because of your sensor eyes being misaligned.
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.
If necessary you can close the garage door by pressing and holding the door control push bar until down travel is completed.
The door will stop and reverse back upwards.
You ll need to hire a professional to replace the wiring entirely or check to see if the wire disconnected from the opener and reconnect it.
It should be on and steady.
The opener can self diagnose any issues.
If this doesn t fix your problem then the problem is more than likely the safety reversing sensors.
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.
The remote control will not work.
If an operational problem exists and the garage door opener will not close the opener can be forced to close.
Once you push this button the light on the garage door opener will flash twice.
See safe t beam diagnostic light guide check garage door for binding.