If an object or person is in the way of the beam the closing door reverses direction.
How to replace craftsman garage door opener rpm sensor.
One that sends an infrared beam and one that receives the beam.
That s why a liftmaster or chamberlain brand part might also be the perfect replacement for your garage door opener.
Wear work gloves to protect your hands.
All garage door openers use a sensor light to prevent the door from closing when an object is in its path.
Sometimes the sensor becomes faulty and needs to be replaced.
Replace the rpm sensor with the manufacturer approved replacement part.
The motor pulley drives the belt to move the trolley along the rail to lift and lower the garage door.
The repair guide and video show how to replace a garage door opener rpm sensor in 6 steps.
Time required 60 minutes or less.
If the rpm sensor breaks the garage door only moves 6 to 8 inches at a time and the led light flashes 5 times.
This rpm sensor assembly part number 41c4398a is for garage door openers.
If the belt frays or breaks replace it.
Replace the garage door opener belt.
Prev article next article.
The garage door opener has two sensors that prevent the garage door from closing on a person or object.
Rpm sensor assembly 41c4398a checks the speed at which the motor shaft is spinning.
The rpm sensor detects motor speed.
Because craftsman parts are made by the same company chamberlain that makes liftmaster and chamberlain garage door openers and parts most are interchangeable.
Craftsman garage door opener rpm sensor troubleshooting.
Unplug the garage door opener before installing this part.
How to replace a chain drive garage door opener rpm sensor liftmaster rpm sensor you replacing the rpm sensor on a garage door opener you how to replace a chain drive garage door opener rpm sensor.
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.