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LiftMasterRPM Sensor 41C4398A

Q: Is it necessary to replace the old wheel when installing a new sensor? I have an old craftsman screw drive opener with a worm gear on the end.

Mine was old Craftsman chain drive but the plastic wheel was larger than the old one and I had to make some adjustment to use the new wheel. But I would try the senor with the old wheel to see if it works.

Q: my motor will not reverse; sensors are installed okay

You may need to change out the rpm sensor. I had a similar problem with an older lift master door opener and it would start to reverse and then go back up. I replaced the rpm sensor and problem was gone.

Q: Will this work on a liftmaster 1280r?

Hi , I had a sears opener from 1992 or so and I did fix it , can't remember but may have been slightly different but maybe better in some way

Q: Will this work on a craftsman 1/2 hp?

Mine is a 1/2 hp and it worked.

4.3/5

Product ID: 274938722

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Description

Specifications

Manufacturer	Chamberlain
Part Number	41C4398A
Item Weight	3.2 ounces
Product Dimensions	3.5 x 1.7 x 5.6 inches
Item model number	41C4398A
Is Discontinued By Manufacturer	No
Style	Rpm
Power Source	Corded-electric
Item Package Quantity	1
Mounting Type	Flange Mount
Batteries Included?	No
Batteries Required?	No

Have a Question? See What Others Asked

Is it necessary to replace the old wheel when installing a new sensor? I have an old craftsman screw drive opener with a worm gear on the end.

my motor will not reverse; sensors are installed okay

Will this work on a liftmaster 1280r?

Will this work on a craftsman 1/2 hp?

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