your problem may also be the top shoot or claw bolt not going into its keep correctly,if you can open the door(the handle may be very stiff when unlocked)adjust the keep usually a small pozi scewdriver does, carefull the little screws dont fall out oil with wd40 may also help.good luck.
ian
June 2011
try adjusting the allen bolts on the hidges by using a 6mm allen key this problem is usely caused to much sun putting door out of square hope this is some help
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