Water Heater Making Noise? What Popping, Rumbling and Hissing Mean
Popping or rumbling
Sediment on the tank bottom traps water that boils and pops. Flushing the tank usually quiets it; heavy sediment shortens tank life.
Hissing or sizzling
Water dripping onto the burner or a leaking T&P valve. Have it inspected soon.
Banging or knocking
Often water hammer in the pipes or a loose element in electric heaters.
Screeching
A partially closed inlet valve restricting flow.
When it's time to replace
If your heater is 10+ years old and noisy, repairs may not be worth it. Ace Empire Plumbing offers honest repair-vs-replace advice and same-day water heater installation across California.
Need a plumber for this?
Ace Empire Plumbing offers water heater repair in every California city – for example Fort Jones and Watsonville. Call (888) 480-9811 24/7 or find your city.