Home Security Systems
Home Security System Repair Questions? Ask a Technician.
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You will have to clear the Tamper Alarm that results from every battery replacement, I think.
But as for the cover-lock... you will need to not break it, and it may need lock lubricant. Choose it carefully, the wrong lubricant can ruin a lock. Some need non-grease-type lubricant, some can use it. It varies and in this case I'm not quite sure offhand.