How to open a safewell YB-350A vault? I forgot the combination lock, but I have the key; and the key won’t work. Is there a proper way to open the vault with a key?

SOURCE: I forgot safewell vault's code but have the key the vault's no. 09002820

Write the Manufacturer and maybe try to list in a section of Fixya that is not a Cars and Trucks section.

SOURCE: I have the keys of my safewell but I forgot the

There is no such thing as a general code to open safes. So the only thing you can do is write down all codes you ever used, and try thm one by one. Sorry, but if there was any "backdoor" in a safe, the code should be useless.