Chosen Solution

Hi my Xbox one s fan is making a ticking noise and I don’t know what to do please help

Some units have a gentle scratching sound while the fan is running, it does not appear to have any real consequences other than being annoying. Conclusion: ignore.

This usually indicates that one blade of fan is hitting on front or back of fan. Don’t know if accessible but if so maybe you can bend the blade away from where it’s hitting.