your lockstrip has failed,if it dosnt function properly when door is open,when theres nothing obstructing the rollers moving freely,then you will need a new lockstrip,at a guess your door has been playing up for a time before it stoped working and you have put the lock box on your lockstrip under to much stress and it has broke in the end,you will need to write down the code on your lockstrip if it has one and order a new one and replace it,just type multipoint lock in your search engine and plenty of sites will be there to choose from,then choose mila and your lockstrip and order.hope this helps
shaun www.sdwupvcrepair.co.uk
August 2008
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