Webif your sentry safe’s error light is blinking, it may indicate a communication error with the keypad or a low battery. Check the batteries first to ensure they have enough power and. Webuse these videos to guide you through your safe setup, troubleshooting, and other support needs. Webjun 6, 2023 · locked out of your sentry safe? Our expert guide will show you the top tricks to try when your safe just won't budge. From checking the batterie. Webjun 12, 2021 · sentry safe won't open? Solve common lockout issues…