What Should I Do If My Water Heater Makes Noise?

What Should I Do If My Water Heater Makes Noise?

Water heaters can be tricky appliances to deal with The water heater heats cold water so it can be used in the shower, dishwasher, laundry washer, or any other sink in the house. It might be tough to figure out what the problem is and how to fix it when your water heater begins emitting sounds, especially if the noise is inconsistent. Continue reading to learn more about what a water heater making noise implies.

Hammering or Banging

The word "water hammer" refers to a banging or hammering sound created by the plumbing system when water is forced to abruptly halt or change course, causing a pressure surge within the system. Water hammer has the ability to rupture pipes in the residence, as well as cause the water tank to expand and deform. To handle repeated concerns, contact a plumber for assistance and consider installing a water hammer arrestor or pressure-reducing valve.


Ticking noises in and around the water tank can be caused by changes in efficiency-boosting heat trap coils, water pressure, and loose pipe straps. The good news is that the majority of these causes aren't real issues that need to be addressed.

As long as the swings in water pressure aren't frequent and extreme, the system won't be harmed. Similarly, heat trap coils that improve efficiency genuinely enhance the performance of the water heater, but if the ticking is too much to bear, these parts can be replaced with non-heat trap coils.


Limescale and sediment build-up in the tank are the most common causes of popping and rumbling. Steam bubbles grow beneath the sediment and explode as the water heats up, producing the sound. Using a descaling chemical to help break down the limescale and minerals is a quick fix, but flushing and draining the tank to eliminate any built-up sediment may be preferable.

Crackling, Hissing, or Sizzling

Electric water heaters make a lot of cracking, hissing, and sizzling noises. They're usually caused by sediment buildup in the tank's base, which may be avoided by flushing and draining the water heater once a year. When the lower heating element is hidden by sediment, these sounds occur. However, annoying noises aren't usually the sole sign that anything is wrong. As the water heater strains to heat the same volume of water with a substantially reduced ability to create heat from the lower heating element, expect your heating bills to rise.

Get Your Water Heater Solutions from Water Heating Direct

The majority of issues with a hot water heater should be handled solely by a professional who has been trained to work with them. To avoid problems like a leaking gas line, vent line, scorching, or a potential flood, even experienced DIYers should avoid dealing with the hot water tank. If you want to avoid downtime, revenue loss, and costly repair calls due to a broken water heater, Water Heating Direct is your best option. We've put together a team of industry specialists to provide round-the-clock support and excellent customer service. They are there to answer any questions you may have concerning your individual case 24 hours a day, 7 days a week.