Why Is My Water Heater Making Noise? Causes & Fixes
If you’re hearing strange gurgling, popping, or clanking noises from your water heater, you’re not alone. A noisy water heater can be unsettling, but it often points to common issues that can be easily resolved.
What Causes Water Heaters To Make Noises?
To understand what causes a noisy water heater, it’s important to have a basic understanding of how water heaters work. In simple terms, the appliance contains a large tank filled with water that’s heated by either a gas burner or electric heating element.
When you turn on the hot water tap in your sink or shower, cold water from your pipes enters the bottom of the tank while hot water exits through a pipe at the top. This constant flow of water replenishes the tank and maintains a steady temperature. Sometimes, changes in the function of your water heater can lead to odd noises that shouldn’t be ignored.
Common Causes of a Noisy Water Heater
Sediment Buildup (Popping & Crackling Noises)
One of the most common causes of weird noises in your water heater is the buildup of sediment at the bottom of the tank. This buildup can cause popping or crackling sounds as the water bubbles up through the sediment layer.
Fix: Flushing your water heater annually can help prevent sediment buildup and extend its lifespan.
Expanding Metal (Ticking or Tapping Noises)
A ticking or tapping noise often results from the expansion and contraction of the water heater’s metal components as they heat up and cool down. This is usually harmless but can sometimes indicate loose components.
Fix: If the noise persists, a plumber can inspect the system to ensure everything is secure.
High Water Pressure (Whistling or Hissing Sounds)
If you hear whistling or hissing, your water heater’s pressure relief valve may be releasing excess pressure. High pressure in your tank can be dangerous and should be addressed immediately.
Fix: Check the pressure relief valve. If you suspect high pressure, contact a professional to inspect your system.
Water Heater Age
As water heaters age (typically after 10+ years), internal components can wear out, leading to unusual sounds. If your unit is older and frequently making noise, it may be time for a replacement.
Fix: Consider upgrading to a newer, energy-efficient water heater or a tankless model.
Additional Water Heater Maintenance Tips
Noises aren’t the only signs that something could be wrong with your water heater.
Whether you’ve already heard some strange sounds or just want to ensure your water heater is in good condition, consider these tips from our plumbers:
- Keep an eye out for any leaks or puddles around your water heater, as this could indicate a problem that needs immediate attention.
- Insulate your water heater to prevent heat loss and reduce the strain on its components, which can also help reduce noise levels.
- Consider investing in a newer model of water heater with advanced features such as a self-cleaning mechanism to prevent sediment buildup.
- Be proactive about maintaining your water heater to help prevent strange noises and ensure its longevity.
- Upgrade to a tankless water heater for greater energy efficiency and no tank-related concerns.
Schedule a Professional To Evaluate Your Water Heater
If your water heater is making unusual noises, it’s a sign that something isn’t right. Whether it’s due to sediment buildup, high water pressure, or a faulty heating element, it’s crucial not to ignore these signs.
If you’re in central Florida, Orlando, or Winter Haven, contact Iceberg Home Services. Our dedicated team of professionals is always ready to help you with our top-quality water heater services.
Call Iceberg Home Services to schedule a water heater service today.
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