Strange noise and yellow flame

[Crinkmeister]

When was your last gas safety inspection? You should be given a copy of the certificate and one goes to your landlord. It is a legal requirement that your landlord has this done every 12 months.

 

[Carlos_UK]

All done, it was the fan as suspected and now is running quieter than its ever been!

 

[mountainman]

For about two years then time for another fan☺