WATER HEATER WHISTLING
#1

I have a gas water heater that has just started making a loud 'whistling' sound. It sounds just like steam escaping from a teapot. The sound stops when I fill the bathtub or use a significant amount of hot water. Then it starts back again. There doesnt appear to be any water leaking or gas leaking. Someone told me it could be a leaky pressure relief valve. Should I change it? Thanks
#2
Check the pressure at the water heater drain valve with a pressure gauge
If the pressure is 150lbs or more the T&P valve will trip, the reason the this high pressure is when watre heats it expands, adding pressure to the system, to keep the pressure from building install a thermo expansion tank
So check that pressure before you change the T&P Valve.
If the pressure is 150lbs or more the T&P valve will trip, the reason the this high pressure is when watre heats it expands, adding pressure to the system, to keep the pressure from building install a thermo expansion tank
So check that pressure before you change the T&P Valve.