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Why Does Your Water Heater Make Gurgling Sounds?

Why Does Your Water Heater Make Gurgling Sounds? 22 Sep

Your hot water tank is making gurgling sounds? We know, there is nothing worse than the constant sound of a marching band in your home. However, this noise may also be a sign of the start of a leak. But what does it mean exactly?

Did you know that a hot water tank should have annual service maintenance? This helps reduce risks of failure and ensure you in the event of a claim. It should also be changed every two years. Keep on reading to discover why a water heater makes gurgling sounds and how to get rid of them.

How Common is Water Heater Gurgling Issue?

This problem is quite common, and yet, it sometimes merely requires changing a part or modifying the settings, but which ones exactly?

If your hot water tank is making a gurgling noise, it might mean that there is too much scale in the tank. First, the lifespan of water heater is, on average, ten years. However, a water heater can be working fine but still making gurgling noises, and it is pretty common.

Most water heaters are positioned near the living space except for a split or monoblock thermodynamic water heater. This type of equipment regularly operates at around 50 decibels, which is much louder than a dishwasher or dryer. This loud sound quickly becomes unbearable if your electric water heater malfunctions. The noise generated may not be noticeable continuously. Very often, it increases during peaks in domestic hot water usage, especially if you place it in turbo mode.

Why is Your Water Heater Gurgling?

The first cause of a hot water leak in a tank is lime. This is why it is necessary to choose the right tank and install or replace the anode rod. Indeed, this anode reduces the risk of corrosion and drilling your water heater caused by lime.

So, if your hot water tank makes a gurgling noise, this is a sign that a tank is scaled up. The scale can eat away at the tank as well as damage the heating system (thermostat, electrical resistance), which, in the long term, can lead to rusting, drilling, or cracking. This is why, when the tartar has managed to pierce the tank, the water heater must be replaced.

Maintenance of the water heater is essential, especially for regions where limestone is present in the water. The presence of large limestone deposits at the bottom of the tank can block the electrical resistance. This is because scale surrounds the resistance, which causes overheating and risks damaging the thermostat. Thus, the noise heard is linked to this congestion of tartar.

Monitoring the condition of your hot water tank can improve the water heater’s lifespan. This allows you to save money, but above all, to ensure safety and comfort for you and members of your family.

Regular Maintenance Helps You to Save Money

When your hot water tank makes a lot of noise, most likely it heats more than it’s necessary or to the maximum. Your thermostat is, therefore, incorrectly adjusted.

Besides, a build-up of a deposit at the bottom of the tank can be the cause of the thermostat overheating. Over time, lime, sand, and gravel prevent water from circulating properly.

Finally, heavy use of the thermostat for heating water can damage it. It is recommended to lower the thermostat setting. However, if it no longer works and your water does not heat up, it will be necessary to replace it.

Is It a Serious Problem?

These gurgling noises only happen when your water heater tank is building up inside. This build-up is made up of minerals from the hard water that forms a sediment in the reservoir, which will scale its walls.

When that occurs, the tank cannot flush and filter as effectively as it should. This is why it makes gurgling noises as it struggles to function. Not only is it bad for your water tank, but it’s also bad for your electricity bills. Your water tank is working longer to heat less water than usual, wasting energy and thus, making you pay more money.

Our Smile HVAC team will tell you when installing a new water heater is necessary, but if this accumulation of sediment occurs, you will only need to have it drained and rinsed. It is the best option for you to keep your water heater buildup-free.

How to Fix?

A build-up of sediment makes the water heater gurgling because the water is boiling under the residue but has nowhere to go. The water begins to percolate, much like coffee in a coffee maker. An excess of deposit can permanently damage the heating elements of the water heater or cause a dangerous leak.

It is essential to seek help as soon as you notice any sounds and performance issues. It’s perfectly possible to rinse and drain a water heater yourself, but you can also call the professional to help to get the job done smoothly.

The typical flushing process involves:

  • Turn the heater off
  • Turn the cold water lever off
  • Connect a hose to the valve and turn on a hot water tap inside the house.
  • Let the water flow through the drain valve, and you will start to see dirty water coming out of the hose.
  • Rinse the water heater by opening and closing the cold water supply lever several times.
  • Keep the device off for ten minutes.

Smile HVAC Will Fix Your Water Heater

We hope this helped you make your water heater go back to normal again. You applied all these tips, and your water heater is still annoying you with gurgling sounds? Smile HVAC is here to help!

We will make sure there is no more noise, and that you can finally sleep soundly. The whole Smile HVAC team thanks you for your interest. If you wish to have additional information on this subject concerning the installation or repair of your water heater, or any other HVAC issue, you can contact us at: (+1) 437-777-4555 or contact us online.