Replace Rpm Sensor Garage Door Opener

041c4398a is a rpm sensor replacement kit.

Replace rpm sensor garage door opener.

Gdo opens about 12 then stops. This diy repair guide explains how to replace a safety sensor on a garage door opener. Lift master garage door opener model 1255lm from 1994. I took pictures of the connections before and followed the circuit diagram on the new part.

Replace the rpm sensor with the manufacturer approved replacement part. Checked safety sensor light rails wheels chain pulleys trolley and carefully pulled door up and down manually while unhooked from trolley. Prev article next article. 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.

Everything checked out so i ordered this part 41c4398a rpm sensor replacement as suggested online. For use with various liftmaster and chamberlain garage door openers featuring a 5 bladed photo interrupter sensor. The garage door opener has two sensors that prevent the garage door from closing on a person or object. Manufactured after 1997 only check the owner s manual or replacement parts diagram for specific part information before ordering to ensure compatibility.

The rpm sensor was easy to replace. The circuit board itself is not laid out the same as the 10 year old original. If the rpm sensor breaks the garage door only moves 6 to 8 inches at a time and the led light flashes 5 times. If an object or person is in the way of the beam the closing door reverses direction.

This diy repair guide explains how to replace the rpm sensor on a chain drive garage door opener. The rpm sensor detects motor speed. Marantec garage door opener 89493 rpm sensor for use with m 4500 m 4700 q 7500 q 7700 maclift iii. One that sends an infrared beam and one that receives the beam.

They tend to work with infra red sensing devices which lock the two lights together.