The liftmaster rpm sensor 41c4398a is a genuine liftmaster replacement part and is compatible with all chamberlain and liftmaster group chain and belt drive openers manufactured from 1984 to the present.
Rpm sensor liftmaster garage door opener.
To prevent the garage door from injuring someone in the door or damaging an item in the way of the door all models of liftmaster garage door openers come installed with a safety sensor.
Motor runs this way with and without the limit switch assy on or off the unit.
For use with various liftmaster and chamberlain garage door openers featuring a 5 bladed photo interrupter sensor.
Check the owner s manual or replacement parts diagram for specific part information before ordering to ensure compatibility.
Checked safety sensor light rails wheels chain pulleys trolley and carefully pulled door up and down manually while unhooked from trolley.
The product worked great and fixed our problem immediately.
For use with various liftmaster and chamberlain garage door openers featuring a 5 bladed photo interrupter sensor.
041c4398a is a rpm sensor replacement kit.
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Manufactured after 1997 only.
For the door to close correctly without reversing the safety sensors need to be aligned perfectly and there should be nothing in the way of the light beam.
Manufactured after 1997 only.
Liftmaster rpm sensor 41c4398a.
Replaced gear drive unit due to worn out parts.
Gdo opens about 12 then stops.
Check the owner s manual or replacement parts diagram for specific part information before ordering to ensure compatibility.
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From logic boards to chain kits to safety reversing sensors find the right liftmaster replacement part to help you with any garage door opener repair project.
Everything checked out so i ordered this part 41c4398a rpm sensor replacement as suggested online.
Lift master garage door opener model 1255lm from 1994.
041c4398a is a rpm sensor replacement kit.
I ve already checked the contacts going to the board to see they.
Now the motor will only cycle 5 inches and auto reverse and cycle back when depressing the remote or wall switch.