You're hearing the igniter. It's malfunctioning. Get it serviced.

If you donâÂÂt have any money related problems then you can get replaced it .

I wish you would have recieved far better responses from people on here. I suppose it takes research or trained knowledge for your answer.

Regardless of money or other factors perhaps just calling for some wisdom over the phone to reputable companies in your area may be able to get a theory of possibilities. At least it may yield a better understanding of the level of concern you can take with it.

Has it been enough time since your post where you've figured out the likely answer to your question? Would you like to share it if so?