Why Is My Water Heater Making Noise?

Why Is My Water Heater Making Noise?…

When there were no water heaters, people had several ways heat water in a pot over an open flame, electric stove or a gas stove. To use the hot water for bathing or cleaning would require pouring it into a bathtub. This method of boiling the water takes some time and was quite risky to carry too. The water heater falls in the list of one of your home’s most reliable and crucial appliances. The water heater was created during a critical juncture in modern history. Due to this technology, we currently have faucets that provide hot water on demand and whenever we need.


Your water heater may produce some noise while it’s operating, which is to be expected. This is particularly true now since winter requires your water heater to work harder to supply you with warm water all day long. The sounds made by a water heater may not need your attention or any action on your side. Water heaters occasionally produce noises, and it’s quite normal. But some of those water heater noises are considered a sign of a major issue.

This professional guide can assist you in troubleshooting and resolving the issue. Something must have gone wrong with your water heater if you sense or hear any unusual noises from your water heater. There are several factors that might contribute to hot water heater noise.

When you hear your water heater making noise you should beware that it indicates the necessity for a simple repair. A few issues need significant attention. This professional guide will also assist you in troubleshooting and resolving the issue. These are a few things and types of noises you must look out for if noises from your water heater are becoming louder and frequent overtime.

Pipes With Air Stuck Inside

A different cause might result in loud pounding noises from boiler heating systems. Your home’s pipes may develop air entrapments. This can cause pressure shifts and noises. You can bleed the lines to solve this issue.

Ignition Problems

A buildup of gas inside the combustion chambers may result from issues with the ignition components, such as filthy igniters or a dirty burner. When you ignite the heating system, it might indicate a larger-than-normal explosion, which produces a very loud sound inside your furnace. If you hear a hammering noise, you should immediately consult a professional since this problem might be serious. Your ignition unit’s burner network may require cleaning.

Expanding Of Internal Ducts

Your ducting may become chilly and slightly contract in between heating cycles. A loud explosion may be heard when your furnace turns on because it may cause the metal ductwork to expand in reaction. Even though it could be alarming, this kind of pounding noise is common and may recur when the heater shuts off, and the metal ducts shrink once again.


Ball bearings are used to drive the blower fan in your furnace. These bearings may produce a metal-on-metal grinding sound if they are not sufficiently lubricated. Your furnace might need to be tuned up if you hear grinding and oiled properly. Professional HVAC experts can inspect, oil, and check the motor and blower for damage.


You could have anything loose in your system if you hear rattling or rumbling from the inside of a furnace. Sometimes the problem is as straightforward as a missing screw or an open access panel, while other times it might indicate damaged and misaligned furnace parts. If you check the exterior of your furnace and do not find any flexible panels, contact for repair and ask an HVAC professional to check your heating system for damage that is causing this rumbling sound.

How Can You Help To Resolve This Issue?

Although most water heaters make some noise, which is common. These noises indicate that something is diminishing the volume at the bottom of the tank and has to be fixed before it worsens and causes leaks. Before resolving the noise, you should first identify the noise and its cause to properly treat that water heater sound.

It’s crucial to act timely if you hear any of the noises mentioned below from your water heater. You may try a do-it-yourself fix if you’re handy and have some plumbing knowledge. However, it’s better to leave things to the experts when dealing with plumbing, hot water, and steam that come with water heaters are challenging to deal with if you are not experienced to do it.

If you have no plumbing knowledge, taking issues into your own hands is something you certainly don’t want to do. Water damage to your home and personal injuries are the most possible outcomes.

Is Your Water Heater Making A Humming Noise?

It may signify that some parts are loose if the water heater makes humming noises. These noises are produced by vibrations that take place within the water unit itself. Fortunately, this noise can be easily fixed, and anybody can do it.

Ensuring the water heater is off will allow you to check that each component is secure. Before you fix it on your own by tightening screws and another element, it’s important to ensure that the water heater was turned off a few hours ago and has cooled down completely. Otherwise, the water inside can be scalding, and you might get burned very rapidly if there are any leaks or outpours.

How Do You Fix a Hammering Water Heater?

It’s weird to hear a pounding noise coming from the water heater. Water rushing too rapidly through shutdown valves is a common cause of this. Although it isn’t a serious problem, this water heater noise may be very disruptive. These pounding or hammering noises can also be brought on by sediment accumulation because steam bubbles cannot rise to the surface. These sounds are also brought on by the sediment traveling up and down the water tank.

The remedy in this situation is an additional component that can assist in reducing noise. You can purchase a water hammer arrestor at your neighborhood hardware shop to lessen the shock when water stops flowing because shutdown valves are closing quickly. Installing a water hammer arrestor, which contains the noise, is not very difficult.

What To Do If Your Water Heater Makes A Hissing Noise?

Hissing noises are significantly noticeable in electric water heaters. They are frequently attributable to sediment accumulation in the tank’s base, which may be prevented by cleansing and emptying the water heater once a year.

These noises appear when silt has covered the bottom heating element. However, the only sign of this issue isn’t usually annoying noises. You might face a raise in your electricity bill due to the water heater struggling to heat the same amount of water with a much lesser capacity to generate heat.

A gas water heater’s internal condensation creates a sizzling sound as it falls onto the burners and causes sizzling noises. Condensation building up in the tank may indicate a water heater leak. To make your water heaters work in perfect condition, a licensed plumber should be contacted.

How Do You Fix a Screeching Water Heater?

The scariest sound a water heater can produce by far. We link pressure problems with yelling or screeching noises. In this instance, the issue is presumably caused by the water line and water heater valves.

Water is pushed to squeeze through these valves when they can’t fully open, producing pressure that results in recognizable high-pitched noise. To correct this noise, a qualified plumber will probably be required. They may assist with the valve inspection to ensure the valves are fully functional.

How Do You Fix a Ticking Water Heater?

Water heater ticking sounds in and around the water tank can be brought on by variations in water pressure, efficiency-enhancing heat trap nipples, and slack pipe straps. The majority of these reasons, which is fantastic news, don’t pose problems that need to be fixed.

As long as the water pressure fluctuations are not frequent and sudden, this won’t hurt the system. Like efficiency-enhancing heat trap nipples enhance the water heater’s functioning, albeit if the ticking noise is particularly inconvenient, these components may be exchanged for non-heat trap nipples.

Although loose pipe straps aren’t a significant concern, it is a good idea to tighten or replace the pipe straps to solve this issue. This will end the ticking noise and keep the pipes from moving. Alternately, turning down the heat a few degrees may lessen pipe expansion and put an end to ticking noises.

What To Do If These Don’t Fix Your Hot Water Heater?

Even though certain noise-related problems with a water heater don’t require complicated fixes, not every homeowner feels confident handling a water heater. Hot water heaters may burn flesh because they have multiple areas that are very hot to the touch.

However, a specialist can carefully examine and manage the various parts of the water heater, paying close attention to how they connect to the plumbing, gas, and electrical systems and being familiar with how to address common noises produced by both a water heater and a water heater replacement.

An expert can determine the best course of action to take if anything changes and new conditions, such as puddling and water buildup.

Call one of Accomplish’s trusted plumbers if your water heater emits odd noises. To give you peace of mind, everything will be back in working condition.






Request Quotation