A few days ago, I had to re-light the pilot on my water heater. Tonight, I noticed crackling & snapping noises coming from the heater, and the flame isn’t steady.
What might this be? The water heater is only a few months old and these are the first problems we’ve had.
Have an experienced gas service person check the burner manifold. Snapping and cracking is a symptom of burning within a burner. the gas pressure may have dropped due to restriction of some other cause.