Electronics Repair Questions? Ask an Electronics Technician
Hi, I'm Pete. Welcome to JustAnswer! I'm reviewing your question now, and will post back with your reply ASAP.
I'm not sure which model you have as the number given is a serial number, however to reset the combination on most Sentry safes, you will need to open the door of the safe, delete the existing codes, press the PROG or P key and enter the factory code. Then enter a new code.
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