I always have to push my shoulder into the top of the lock in order to turn the top key to lock cannot unlock it from the inside either have to pull the door real close to the steps so the slide can clear the whole. It's a poor design but I guess it keeps the water out when it's sealed that tight. I just try to use the deadbolt but when traveling I have to lock both because the door squeaks like crazy if it's not locked. Good luck
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