mobilehomerepair.com

Since this is "off topic" I'm posting here. I have a gas water heater that has just started making some interesting noises. First it was some hissing sounds - so I released pressure from the tank hoping that would fix the issue, however, now it has some squel / beeping noise that happens sporadically.

any idea of what this is?

Thanks,
Ron

I would check the water temperature, It could the thermostat is stuck and over heating. If the unit is over 10 years old, if may not be worth messing with. Greg


http://www.hometips.com/repair-fix/hot- ... blems.html

+1 on what greg said. It may be a valve that vibrates when the water expands and contracts, or a hard water build up. Does it only happen when water is running?