When I installed my Jeld-Wen sliding glass door, the locking mechanism wouldn't engage, and it appears to be a common problem. I’ll show you a quick and easy method to fix a Jeld-Wen patio door that won’t latch or lock. If the sliding glass door latch is sticking, spray some silicone lubricant spray into the latch or lock to lubricate it so it operates smoothly.

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