Chubb Night deadlock 4L67E sticking?
My Chubb door lock is a Night deadlock number 4L67E the inside black lockable handle is sticking and I have difficulty turning it and can not lock the handle inside. How do I repair it, it still moves in and out with difficulty and dead bolt does not always lock.
The outside lock still works ok.
David Wynne - FITZGERALD
January 2012
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