Sears troubleshooting website which is also great by the way said it was the logic board.
Sears garage door opener logic board problems.
Find craftsman compatible liftmaster circuit boards for screw drive opener models.
Install the mounting screws in the new logic board.
Craftsman 1 2 hp chain drive garage door opener.
If not remove the bell wire from the opener terminal screws.
My opener was an older model so had to swap the electronic parts from the new cover to my old cover.
A power surge due to lightening or a power outage in the house can damage the boards.
Garage door opener troubleshooting marketplace 500 only 22 in store.
A recent thunder storm knocked out the garage door opener.
Reinstall the control panel on the motor unit and secure it with the mounting screws.
Pay less for sears craftsman garage door opener logic boards at north shore commercial door.
Masterremote 2 for sears craftsman 139 53753 garage door opener remote 315mhz 139 53985d.
I ordered from amazon because it had a better price.
Sears craftsman 41a4252 12 garage door opener circuit board.
Reinstall the light bulb and light cover.
If the wiring connections are okay wait a few minutes before plugging the garage door opener back in disconnecting the power resets the logic board after an electrical disturbance.
Short the red and white terminals by touching both terminals at the same time with a piece of wire.
Here is a brief trouble shooting guide.
Sears craftsman 41d4674 garage door opener circuit board.
Then test whether the opener works.
Connect the wires to the new logic board.
Common problems experienced with garage door openers are often due to a faulty logic board.
If there are any obstructions preventing the sensors from communicating move them out of the way.
If the light does not come on when the door opens or go off when it closes the problem could be the logic board.
Check the sensors on either side of your garage door.
We have liftmaster brand logic boards for sears craftsman jackshaft garage door operators.
Sold by masterremotes an ebay marketplace seller.
The sensors have to be able to detect flashing lights from one another for the garage door to open and close properly.
We have craftsman logic boards for new and older model craftsman liftmaster and chamberlain garage door operators.
The part came fast and worked perfectly.
Find logic boards designed for use on garage door models made before 2005 and circuit boards for openers made after 2005.
