Why won't my Fire-Fyter safe open with just the key?

If your Fire-Fyter safe won't open with just the key, it could be due to several reasons. The lock mechanism might be jammed or malfunctioning, possibly due to dirt or wear over time. Additionally, some safes have a secondary locking mechanism or a combination that must be entered alongside the key for security purposes. Check the manufacturer's instructions for troubleshooting tips or consider contacting customer support for assistance.