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Serving Maryland, Virginia,
and Washington, D.C.

Serving Maryland and Washington, D.C.

Serving Fairfax and Loudoun
Counties and the surrounding area

24 Hour Emergency Services, 7 Days a Week

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B&B Air Conditioning & Heating Service Blog

What Causes Leaks in Water Heaters?

water-heater-leaking

We often encounter various issues with water heaters, with leaks being among the most frequent concerns reported by homeowners. Understanding what causes these leaks can help you to identify the problem early and mitigate potential severe damage to your home. In this blog post, we’ll explore several reasons why water heaters may start leaking and emphasize the importance of promptly calling in professionals to address these issues with water heater repair.

Common Causes of Water Heater Leaks

Age and Corrosion

Most traditional tank-type water heaters are designed to last approximately 8 to 12 years. Over time, the internal tank can succumb to corrosion caused by constant water exposure and mineral deposits. This corrosion gradually weakens the tank, leading to the development of small cracks or holes that may allow water to escape. Observing leaks in an aging water heater often signals that it might be time to consider a replacement.

Faulty Temperature and Pressure Relief Valve (T&P Valve)

The temperature and pressure relief valve is a crucial safety component designed to release water if the pressure or temperature inside the tank becomes dangerously high, thereby preventing potential explosions. If this valve malfunctions or develops a poor seal, it may start to leak. Such leaks are a clear sign of excessive pressure or overheating within the tank, requiring immediate professional attention.

Loose Drain Valve

Situated at the bottom of the tank, the drain valve facilitates the flushing out of sediment buildup within the water heater. If this valve is not completely closed or becomes loose, it may begin to drip. Often, simply tightening the valve can stop the leak, but if the valve itself is defective, replacement might be necessary.

Excessive Pressure

In some cases, the water pressure within a home’s plumbing system may exceed what the water heater is designed to handle, usually around 40-60 pounds per square inch. High pressure can stress the water heater and associated plumbing, leading to leaks. Addressing this issue may involve installing a pressure-reducing valve or checking the system’s expansion tank.

Improper Installation

Incorrectly installed water heaters are prone to problems, including leaks. Ensuring that all connections are properly fitted and all components are installed according to the manufacturer’s specifications is crucial. Installation errors often involve issues like cross-threading or insufficient sealing at the inlet or outlet connections.

Sediment Buildup

Areas with hard water tend to experience rapid sediment accumulation at the bottom of the water heater tank. This sediment can cause uneven heating and eventually weaken the tank’s metal, leading to cracks and leaks. Performing regular maintenance, such as annual tank flushing, can help prevent sediment-related issues and extend the lifespan of the heater.

Don’t Delay Calling a Professional

Leaking water heaters can quickly escalate from a minor nuisance to a major catastrophe. Even small leaks can cause extensive damage to flooring, substructures, and overall home integrity. Moreover, postponing repair work can exacerbate the problem, potentially leading to a total system failure requiring more expensive replacements rather than simple repairs.

Please don’t overlook or delay addressing water heater leaks. Our team of experienced professionals is well-equipped to diagnose and resolve the cause of the leak, ensuring your home remains safe and your system operates efficiently. When it comes to water heater services in Fairfax, we’re the team to depend on.

Call B&B Air Conditioning & Heating Service: We are always there when you need us. 

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