Question about Chamberlain Powerdrive PD422D 1/2 HP Security Plus Screw Drive Garage Door Opener
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Posted on Jan 02, 2017
Please make sure you don't have broken springs first and that the door is balanced properly. If so you can replace the "Trolly" by disconnecting the arm from the opener, undoing the opener from the bracket that mounts it to the wall. This usually takes a 1/2 in wrench. Then swing the opener out far enough to slide the trolly off and replace it with a new one. Re-connect everything then re-engage the trolly.
Posted on May 19, 2009
THE OLD STANLEY UNITS ARE NOT WORTH FIXING.
PARTS ARE NOT AVAILABLE AND THE UNIT DOES NOT MEET THE SAFETY STANDARDS
TIME TO BUY A NEW CHAMBERLAIN / LIFTMASTER / OR CRAFTSMAN OPENER
Posted on May 26, 2010
Testimonial: "Thanks very much! I'm a fixit kinda guy and would have pursued parts for this to the end. You've saved me a lot of time."
You may look at the safety sensors. Try holding the wall button down. If the door operates with the button held down then it is the sensors. Try to align them to look at each other. If not you are probably looking at either replacing the sensors or the logic board. Thanks BB
Posted on Sep 03, 2010
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