Charlotte water heater drain service

Why is my water heater rumbling?

Question: Why is my water heater making noise?

Answer: Water heaters make noise when sediment builds up inside the tank or when there's something wrong with the pressure valve. Sediment build up makes a rumbling noise. Pressure valve problems make a whistling or squealing sound. Pressure valves can be very dangerous; examine with caution.

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Learn about other water heater noises (hammering, humming) here.