As we have established earlier garage door safety sensors are not universal and will only work with garage door openers of the same brand.
Craftsman garage door opener safety sensor not working.
Two types of accidental obstructions can cause the safety sensor to prevent a garage door from closing.
All garage door openers use a sensor light to prevent the door from closing when an object is in its path.
If your craftsman garage door opener fails to close the door properly you may need to disable the sensor light temporarily until you can replace the sensors.
Sometimes the sensor becomes faulty and needs to be replaced.
Safety sensors are not installed connected or wires may be cut.
The garage door opener will not close and the light s will flash.
Chamberlain liftmaster and craftsman openers have polarity wiring so you need to make sure to keep the black and white wires lined up properly for the safety sensors to work properly.
If the sending sensor with the amber led is not lit check the wire and connections for that sensor.
If you re unable to resolve the problem you may need to contact a professional garage door service near you for help.
If you re in the ventura county or los angeles county area contact your garage door guys for an estimate.
Here are the two main exceptions to the rule.
The first is an obstruction in the path of the door and therefore in the path of the sensor.
Inspect sensor wires for a disconnected or cut wire s.
For safety purposes do check the sensors of the garage doors are working correctly or not.
Sears craftsman garage door openers have an important safety feature that prevents the door from closing when something or someone is in the way.
If the sending sensor is not working properly the green light on the receiving sensor will remain off.
As they are mechanical parts they will need oiling from time to time.
If you feel any kind of disturbance call an expert.
If the diagnostic led on your craftsman garage door opener blinked two times then it means the safety sensor is disconnected from the garage door opener.
If you own a liftmaster chamberlain or craftsman garage door opener the same safety sensor will work on all three brands.