The answer to 'water heater making gurgling noise' is that a gurgling sound from your water heater is typically caused by sediment buildup at the bottom of the tank. As the water heats up, the sediment can create air bubbles that rise through the water, causing a gurgling noise.
Some other common causes include a faulty pressure relief valve, a problem with the thermostat, or mineral deposits in the tank. Gurgling can also be a sign that the tank needs to be flushed to remove sediment buildup.
Shut off power to the water heater, attach a hose to the drain valve, and drain the tank to remove sediment. Refer to the manufacturer's instructions for the proper flushing procedure.
If you hear gurgling noises, see discolored water, or notice the water heater taking longer to heat up, it's a good idea to flush the tank to remove sediment.
If the gurgling persists or you're not comfortable flushing the tank yourself, it's best to call a professional plumber to diagnose and fix the issue. They can also check for any other underlying problems.
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