Liftmaster Garage Door Safety Sensors

Liftmaster garage door operators have two different styles of photo-electric safety sensors. So which one do you buy when yours stop working? That's going to depend on how old your operator is. You'll either have the older 41A4373A Liftmaster bolt style that bolts through the mounting bracket or the newer 41A5034 Liftmaster "Snappy Sensors" that snap into the mounting bracket.

41A4373A Sensors (old style)

The 41A4373A Safety Sensors are compatible with Liftmaster operators manufactured from 1993 to 1997. You can tell this is the sensor you need by the bolt that goes through the center of sensor and bolts to the bracket. They're compatible with opener models 1240, 1245, 1246, 1250, 1255, 1256, 1260 and ATS. Compatible with Liftmaster, Sears, Craftsman, Chamberlain and Raynor openers manufactured since 2000.

41A5034 Sensors (new style)

The newer 41A5034 Snappy Sensors are compatible with Liftmaster operators manufactured from 1997 to current. You can recognize the Snappy Sensors because they snap into the mounting brackets. These sensors work with operator models 1265, 2265, 2280, 2500, 2580 and other current models. Compatible with Liftmaster, Sears, Craftsman and Chamberlain.

As much of a pain the safety sensors are (especially when they're not working) you need to have them. They offer protection from the garage door operator closing on your car, yourself or a loved one. You'll know they're not working if your remote won't close the door and you have to use constant pressure on the wall button to get the door to close. This doesn't mean they're broke it just means they aren't working properly. Before you buy a new set of sensors check and make sure there's nothing blocking the sensors, there's no loose wires and the sensors are "looking" at each other & aren't knocked out of alignment. If you've done that and they still don't work then you'll probably have to get new sensors.

UPDATE: Due to the 41A4373A Sensors (old style) being discontinued we've updated this post

41A5266-3 Sensor Brackets

If you determine that you have the 41A4373A Sensors (old style) then you can go with the option of using the 41A5034 Sensors (new style) but you'll also need to use the 41A5266-3 Safety Sensor Mounting Brackets since the sensors mount differently from the old 41A4373A Sensors.

You can purchase the newer 41A5034 Sensors here and the 41A5266-3 Sensor Brackets here at the Garage Door Zone.