Clemmie stierle may 8 2018.
How to replace rpm sensor garage door.
Place a box or similar object between the safety sensors to block the sensing beam.
The rpm sensor detects motor speed.
If the rpm sensor breaks the garage door only moves 6 to 8 inches at a time and the led light flashes 5 times.
The last resort was replacing the broken sensor.
Open the garage door.
Attempt to close the garage door using a remote.
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.
After investigation it seem that the sensor was broken because the red lights were blinking without stopping even though nothing was in the path for it to close.
The repair guide and video show how to replace a garage door opener rpm sensor in 6 steps.
If the garage door opener closes the door with the safety sensors blocked replace the logic board.
The door should stay open and the motor unit lights should blink.
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It seems replacing my genie garage door sensors was the only fix.
This basic procedure works for common craftsman liftmaster and chamberlain garage door openers.