Automatic garage doors are required to come equipped with safety features to prevent accidental injury. One of the most important features is auto reverse. The door opener should sense an obstruction and stop and reverse. This prevents rhe door from exerting downward pressure and crushing anything trapped under it. As home inspectors we test these functions, and as a home owner you should do the same. For more information on the safety features and methods for testing please click the link.
http://www.washingtonpost.com/wp-dyn/articles/A56868-2004May26.html
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