Faber — Noise in burner

Address:

New sadak, gwalior

Hi,
I have purchase faber burner in the month of may 2021 and from past one momth it is continuously making noise when i lit up the burner. I have already registered a complaint kn customer care but from their end they automatically closed it even though the issue haven't resolved yet.
Technician already visited couple of times and he told that everything he have done but he also unable to find the root cause of this issue.
Note : this product is under warranty.