Why Your Water Heater Pilot Light Keeps Going Out

A water heater is a basic household appliance that provides hot water for showers, dishes, laundry, etc. However, there are times when your water heater may start making strange sounds, which can be alarming. If you’ve ever heard popping, rumbling, or hissing sounds coming from your water heater, you’re not alone. These water heater noises are not as unusual as you may imagine and can be caused by various problems. Let’s explore the common causes of these noises and what you can do about them.

Is It Normal for a Water Heater to Make Noise?

It is also worth knowing that not all forms of noise are abnormal. Water heaters often make noise during regular operation. The heating process and water circulation in the tank may produce various noises. An example is the popping or gurgling sound caused by bubbles rising to the surface when heated. There may be an audible humming or buzzing from the thermostat or the heating element, going on and off. Nevertheless, there are a few noises that may tell you that something is wrong.

Common Causes of Water Heater Noises

It is best that you know what caused the noise so you can determine whether it needs to be fixed. We are going to unravel the most common reasons for water heater noise.

1. Sediment Buildup in the Tank

One of the most frequent causes of popping, rumbling, or crackling sounds is sediment buildup in the tank. Over time, minerals and debris from hard water can settle at the bottom of the tank. As the water heats, steam bubbles from beneath the sediment. These bubbles pop, producing a popping or rumbling sound. To resolve this problem, the tank can be emptied to clear accumulated sediment. Maintenance, such as draining the tank at least once a year, can help avoid this issue.

2. Loose Heating Elements

Another typical cause of loud noises is loose heating elements. Unless the heating elements are secured correctly, they may vibrate and make a rumbling noise. To fix this, switch off the power supply to the water heater, take the access panel, and tighten the heating elements. Check for noise after tightening. It is preferable to call a professional if you do not know how to handle this.

3. High Water Pressure

Water pressure in your house can cause numerous water heater issues, such as a rattling noise. Excessively high pressure may cause the pipes to rattle, and the tank may expand and contract, producing a banging/rattling noise. A pressure-reducing valve could be installed to control pressure and prevent water heater damage. If you do not know the plumbing business, it is better to hire a professional to install this valve.

4. Air in the Tank

Sometimes, air trapped in the water heater can cause bubbling or gurgling noises. The cold-water inlet allows air to enter the tank, rising to the top, and producing a sound that resembles boiling water. To fix this, you may release the air in the tank by means of opening the pressure relief valve and allowing the water to pass out until the air escapes.

5. Leaking Pipes

Leaky pipes may also be a cause of odd noises that your water heater makes. Once the water leaks out of a hole, it may make hissing or whistling sounds. Whenever there are leaks, one should repair them immediately to avoid water damage. Whenever you see water around the tank or pipes, check whether the water heater is leaking, and call a professional plumber to repair it.

6. Expansion Tank Issues

An expansion tank is used to stabilize water pressure and prevent the tank from expanding and contracting with temperature changes. A faulty expansion tank may cause a popping or banging sound. Replacing the expansion tank is an easy repair, though it is essential to shut off the water supply and empty the tank before changing it.

7. Water Heater Tank Age

The inner parts of water heaters may start wearing down as they age, leading to a noisy operation. When your water heater is more than 10 years old, it’s time to change it. The older models are more vulnerable to sediment accumulation and other factors that can cause noise.

What to Do When Your Water Heater Makes Noises?

If you hear strange noises coming from your water heater, it’s essential to address the issue promptly. Start by identifying the source of the noise. If it’s a simple issue like sediment buildup, you can often resolve it by draining the tank. However, if the noise persists after performing basic maintenance, it may be time to call a professional water heater repair service in San Marcos, TX.

Here are some steps you can take when your water heater is making noise:

• Check loose heating components: Ensure all components are tight and working correctly.
• Install a pressure-reducing valve: This may help reduce high water pressure, which is contributing to the noise.
• Check for leaks: Inspect the pipes for leaks and fix them at the earliest opportunity.
• Change failed parts: If the expansion tank or other parts fail, they need to be replaced.

Final Thoughts

Weird water heater noises like rattling, banging, or hissing sounds may seem normal initially, but they are a sign of something drastic. When ignored for long periods, such sounds can cause continuous damage to your water heater, ultimately resulting in costly repairs or a complete replacement. With the proper care and right professional help, your water heater will continue to provide you with reliable hot water for years to come.

For expert water heater services and repairs, contact Woods Comfort Systems. We are your only trusted provider for water heater installation and maintenance in San Marcos, TX. Our HVAC and plumbing company is here to ensure your home remains comfortable and your appliances run smoothly.

Call us or schedule online and make your water heater quieter and more efficient now!