Question about Chamberlain Powerdrive PD422D 1/2 HP Security Plus Screw Drive Garage Door Opener

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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 doors attached to the openers have pulled away from each door. The panels have cracked from apparent metal fatigue. Is there a repair for this damage? Should there have been some type of mounting bracket to keep this damage from occurring? One more bit of information, a metal bar is attached to the top panel. The self tapping screws are offset by 1/8 in due to the fact that the bottom screw goes through this bar while the top screw in this bracket is directly attached to the top panel. This may have caused some flexing in the panel.
Should there have been some reinforcement in the top panel to prevent this damage. FYI the doors are CHI.


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I would contact CHI

Posted on Feb 20, 2008


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