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.
Garage door opener will not close door light is flashing.
Check if the safe t beams red led light is flashing.
See safe t beam diagnostic light guide check garage door for binding.
If an object has misaligned your sensor eyes then it breaks the electronic beam preventing the garage door to close properly.
If necessary you can close the garage door by pressing and holding the door control push bar until down travel is completed.
Four flashes is the most common reason your opener lights may be flashing is because of your sensor eyes being misaligned.
To unlock your garage door opener push the lock button for 5 seconds.
It should be on and steady.
If your garage door opener is still blinking try realigning the safety reversing sensors.
Press and hold the wall console button until the garage door is completey closed.
Counting the number of times this light flashes will allow you to know the exact fault.
If an operational problem exists and the garage door opener will not close the opener can be forced to close.
It informs you of an issue by flashing the diagnostic led light a certain amount of times.
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.
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.
The door will stop and reverse back upwards.
Once you see the double flash press the control button on the remote control.