Strange sounds coming from your water heater can be more than just a nuisance. They’re often a warning sign that something is wrong. If your water heater is rumbling, popping, banging, or shrieking, don’t ignore it. These noises can point to issues that, if left untreated, may reduce the unit’s efficiency, shorten its lifespan, or even lead to a sudden breakdown.
Here’s a breakdown of what those sounds could mean and why you should call in a professional right away for water heater repair in Oro Valley, AZ if you hear them.
Common Water Heater Noises and What They Mean
- Rumbling or Popping Sounds: One of the most common noises homeowners hear is a rumbling or popping sound, particularly as the water heater warms up. This usually means sediment has built up at the bottom of the tank. Over time, minerals in the water (especially in hard water areas) settle and form a thick layer of sediment. As water gets trapped under this sediment and begins to boil, it creates a popping or rumbling sound. This not only lowers efficiency, forcing your heater to work harder, but it can also cause the tank to overheat or deteriorate prematurely.
- Sizzling or Hissing: If you hear a sizzling or hissing noise, it could indicate a leak. When water leaks onto a hot surface, it sizzles and evaporates. Even small leaks can lead to water damage and mold issues, so it’s crucial to investigate this sound immediately.
- Banging or Knocking (Water Hammer): A loud knocking or banging noise, often heard when the unit shuts off or a valve is closed quickly, may be due to what’s known as a water hammer. This occurs when water abruptly stops or changes direction, creating shock waves in the pipes. While this isn’t always specifically a water heater problem, it can cause wear and tear on pipes and connections. A plumber needs to address this.
- High-Pitched Whining or Screeching: A high-pitched noise usually points to a valve that’s partially closed or a problem with water flow. In electric water heaters, it may also be related to a failing heating element. Either way, it indicates something is restricting the system’s normal function and requires professional attention.
- Ticking or Tapping: These subtle noises can come from the heat trap inlets or the expansion and contraction of pipes. While not always dangerous, they can be annoying and should be evaluated during regular maintenance to ensure no underlying problems exist.
Don’t Wait for the Noise to Get Worse
While some noises might seem minor, they can quickly lead to major problems, such as overheating, leaks, or even complete water heater failure. Acting quickly can help you avoid higher repair costs, water damage, or the inconvenience of an unexpected cold shower.
If your water heater is making unusual noises, don’t wait to find out the hard way what’s wrong. Contact our expert team for a prompt inspection and water heater repair. We’ll diagnose the problem and get your system back to safe, quiet, and efficient operation. Peace of mind—and hot water—are just a call away.
Contact Picture Rocks Cooling, Heating & Plumbing today with any questions or to schedule an appointment with our professionals.