Chamberlain Powerdrive PD422D 1/2 HP Security Plus Screw Drive Garage Door Opener "garage opener pull door cold" Questions

Door partially opens in cold weather Problem 1 My Chamberlain door openers (both) open the doors partially and at random heights in cold weather conditions. Problem 2 Both brackets which connect the ...

opener (so the door goes down and back up) several times until it finally goes up. 1.Check to see if the door is running correctly. A. Run the door down and pull the emergency release. See if the door