5 Possible Reasons Why Your Water Heater is Making Noises

It’s not uncommon for your water heater to make a certain amount of noise while it’s running. Water heater sounds can be pretty innocuous, and may require no attention or action on your part. However, there are some noises water heaters make that indicate a serious problem.

Let’s explore five possible reasons your water heater may be making these noises.

1. Sediment Build-Up

One of the most common culprits behind a noisy water heater is sediment accumulation. Over time, minerals from hard water settle at the bottom of the tank, creating a layer of sediment. When water is heated, these sediments can harden, leading to popping, rumbling, or crackling sounds as water forces its way through the build-up. Regularly flushing your water heater can prevent sediment from settling, thus maintaining its efficiency and quiet operation.

2. Heating Element Issues

In electric water heaters, the heating element can sometimes become coated with sediment or scale, causing it to overheat and make a sizzling or hissing sound. This situation not only affects the efficiency of your water heating process but can also shorten the lifespan of the element. A professional cleaning or replacement by one of our NATE-certified technicians can solve this issue, ensuring your system operates smoothly.

3. Water Pressure Fluctuations

Excessive or fluctuating water pressure in your plumbing system can lead to banging or knocking sounds from your water heater. This phenomenon, often referred to as “water hammer,” occurs when the flow of water is suddenly stopped, sending shockwaves through the pipes. Installing a pressure-reducing valve or an expansion tank can mitigate these symptoms, safeguarding your pipes and your peace of mind.

4. Loose Plumbing Connections

Loose pipes can also be a source of noise, causing a rattling sound as water flows through them. This is usually a simpler fix, involving tightening the connections and ensuring all components are securely fastened. Our team at Indoor Air Quality, Inc., emphasizes the importance of thorough inspections and precision in adjustments to maintain system integrity.

5. Gas Valve Vibrations

For those with gas water heaters, a faulty or improperly adjusted gas valve can lead to vibrations or humming as gas flows into the heater. It’s critical for safety and efficiency reasons to have such issues assessed by professionals who can accurately diagnose and adjust your system to optimal settings.

Need Help? Contact Indoor Air Quality, Inc. 

In all these scenarios, Indoor Air Quality, Inc. stands ready to assist. Our dedication to customer satisfaction, backed by our extensive experience and commitment to ongoing education in the HVAC field, ensures your water heater issues are resolved promptly and effectively. By choosing us, you’re not just hiring a service; you’re choosing peace of mind.

Since 2001, Indoor Air Quality, Inc. has provided heating and cooling services to homeowners in the Denver Metro Area (service area). Check out our customer testimonials, contact us, or use our online contact form for more information and a free quote.