An 8 year old natural gas oven has been making a sound occasionally. It seems to be every 5 minutes or so when the oven starts and then less frequently. The sound is not very loud, but loud enough to be clearly heard from across the room. This has been going on for at least a couple of years (but I just found out about it). What should I do about this noise?
Update: The first 3 comments give a wide range of opinions, from highly dangerous to that is how the oven works. I would like to hear from some other people familiar with gas ovens, including owners of such ovens.
Update 2: One oven manufacturer's website says, "It is possible to hear a whooshing or popping sound from any type of gas burners when the burner ignites on start-up and reignites during use." https://www.subzero-wolf.com/assistance/answers/gas-burner-noise-during-use
This surely is confusing to a non-expert.