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You are in Phoenix. We also have a Tucson site.

You are in Phoenix. We also have a Tucson site.

What to Do When Your Heater Is Leaking Water: Causes and Solutions


leaking water heater

Finding out that your water heater is leaking water might feel daunting, but don't worry! Let's explore what it means and how you can handle it.

A leaking water heater can be caused by something minor or signal a more serious issue. This friendly guide is here to help you identify the cause, take immediate steps to address the problem and know when to call in the professionals.

Let's tackle this together!

Key Takeaways

  1. Leaking water heaters can be caused by various issues, such as loose connections, faulty valves, and sediment buildup.

  2. Identifying the source is crucial for determining whether repair or replacement is needed.

  3. High water pressure, corrosion from a deteriorated anode rod, and sediment accumulation are common causes of leaks, all of which require regular maintenance to prevent severe damage.

  4. How do you take immediate action if you have a leaking water heater?

Identifying the Source of the Leak

Identifying where your water heater leaks will help determine whether a simple repair or complete replacement is needed. Common areas to check include:

  • Top of the water heater

  • Bottom of the unit

  • Sides of water heater

  • Check for water pooling at the base or beneath the heater

  • If your heater shares space with an HVAC system, inspect the AC or furnace for leaks.

Understanding exactly where your water heater leaks helps determine what is happening with your unit, and a professional plumber at Parker & Sons can help find and confirm your findings.

What Do Leak Placements Indicate?

Top of the Heater:

  • Leaks at the top of the hot water heater usually indicate loose inlet and outlet connections or a faulty pressure relief valve. Inspect these connections for looseness or corrosion and tighten them with a pipe wrench if necessary.

These issues can often be traced back to a water heater leak. If the leak originates from the pressure relief valve, replacing it might be necessary.

Bottom of the Heater:

  • Bottom leaks often result from drain valve issues, internal tank problems, or sediment buildup. Check the drain valve for corrosion and tighten it if necessary. If the leak persists, replacing the valve may be required.

Ongoing leaks from the bottom may signal irreversible internal tank deterioration.

Sides of the Heater:

  • Side leaks typically stem from a faulty thermal relief valve or cracks in the tank. The temperature and pressure relief valve (T&P valve) releases steam or water to prevent excessive temperature or pressure.

If this valve is faulty, it may need to be tightened or replaced.

Common Causes of Water Heater Leaks

Although a furnace leaking water is a scary experience, not all leaks require a new unit. Let's learn more about the common causes of water heater leaks.

Knowing the causes of water heater tank leaks can help prevent them. Leaks often result from component failures, such as a damaged pressure relief valve, wear and tear, and corrosion from a depleted anode rod. Let's learn more...

Faulty Drain Valve:

  • A faulty drain valve often causes leaks from the bottom of the water heater. Over time, this valve can loosen, leading to leaks. Regular checks and tightening can prevent this issue.

High Water Pressure:

  • High water pressure can cause the tank to work harder. This strain can cause water leaking due to high water temperature, incoming water pressure, or steam buildup.

  • The temperature pressure relief valve helps prevent excessive pressure buildup inside the tank.

Corrosion and Rust:

  • Corrosion and rust significantly contribute to water heater leaks. A worn-out anode rod makes the tank susceptible to corrosion, causing small, often unnoticed leaks.

Hard water can accelerate this, leading to cracks in the tank. Routine maintenance helps prevent these problems.

Sediment Buildup:

  • Minerals in the water settle at the base, causing sediment buildup, which can lead to fractures and leaks. Sediment accumulation over time raises the risk of tank cracks and leaks.

Flushing the tank regularly helps prevent these issues.

How to Maintain My Unit?

Regular water heater maintenance is crucial to prevent leaks and ensure efficient operation.

Routinely:

  • Flush your hot water tank

  • Replace the anode rod

  • Consistent maintenance extends the lifespan of your water heater and helps maintain a reliable hot water supply.

For professional assistance, consider contacting Parker & Sons to maintain your water heater regularly, ensuring peace of mind and optimal performance.

Immediate Steps to Take When Your Heater Is Leaking

What do you do if the dreaded leak happens? Quick action can prevent further damage upon discovering a leaking water heater. Here are three simple steps!

1. Turn Off the Power Supply

For safety, turn off the power supply when your water heater leaks.

  • Electric Water Heater: Switch off the circuit breakers in the electrical panel.

  • Gas Water Heater: Find the gas valve supply near the bottom and turn it counterclockwise until it stops.

2. Shut Off the Water Supply

  • Close the cold water supply valve to stop further leakage. Turn off the water supply when you notice a leak to prevent further issues.

3. Clean Up Water Around the Heater

  • Clean up water around a leaking heater to prevent further damage. Use towels or a wet vacuum to remove standing water around the heater.

Next Steps: Troubleshooting and Fixing Common Issues

After addressing immediate concerns, the next step is troubleshooting and fixing common issues.

Professional plumbers can diagnose and fix the problem for severe leaks or complex issues to ensure safety and compliance.

Tightening Inlet and Outlet Connections

  • Loose connections often cause leaks and can be fixed by carefully tightening the fittings with a wrench. Regular checks and tightening connections can prevent future leaks and extend your heater’s life.

Replacing a Faulty Drain Valve

  • A leaking drain valve usually needs replacement rather than just tightening. To replace a defective drain valve, turn off the water supply, unscrew the old valve, and install a new one, ensuring it is tightly secured.

Flushing the Tank

Preventing Future Water Heater Leaks

Leaking from a water heater isn't inevitable! Regular maintenance and monitoring help prevent future water heater leaks. Routine checks and preventive maintenance are essential to preventing water heater leaks.

1. Regular Maintenance

Annual water heater flushing is essential to prevent sediment buildup and maintain efficiency. Setting your water heater to around 120 degrees Fahrenheit can prolong its lifespan.

2. Anode Rod Replacement

Replace anode rods every 2 to 3 years to prevent internal tank corrosion. Regular checks of the anode rod prevent excessive corrosion, helping to avoid leaks.

3. Installing a Water Heater Alarm System

A water heater alarm system provides real-time leak alerts, enabling prompt action. An alarm system complements regular maintenance by providing additional leak monitoring.

4. Condensate Drain Hose Issues

Debris in the condensate drain hose can block drainage, causing leaks. Regular checks of the condensate drain hose prevent water leaks and ensure proper heating system function.

5. Inducer Assembly Problems

The inducer assembly expels exhaust gases and is critical to the heater's function. Cracks or leaks in the inducer assembly can cause inefficient operation.

5. Condensate Pump Malfunctions

Inspect the condensate drain hose for clogs or damage, which can hinder function and cause leaks. Regularly clean the condensate drain hose to prevent clogs and replace damaged parts to maintain proper operation.

Have a Water Heater Problem? Call Parker & Sons

Now you know that promptly addressing a leaking water heater can save you from costly repairs and potential damage. And remember, a well-maintained water heater ensures a reliable hot water supply and peace of mind.

So whether it's a leak or just a simple inspection, Parker & Sons is here to help! Our team of experienced plumbers are ready to tackle whatever water heater issue you may have. Give us a call today!

Frequently Asked Questions

What are the first steps to take when I notice my water heater leaks?

Immediately turn off the power supply and shut off the water supply to prevent further damage. Next, clean up any standing water to avoid hazards and potential mold growth.

How can I prevent my water heater from leaking in the future?

To prevent your water heater from leaking in the future, perform regular maintenance by flushing the tank annually and replacing the anode rod every 2 to 3 years. This proactive approach will help ensure your water heater remains in good condition.

When should I seek professional help for a leaking water heater?

If your water heater is over 10 years old, frequently needs repairs, or has visible leaks, you should seek professional help. Addressing these issues promptly can prevent further damage and ensure your safety.

What causes high water pressure in a water heater?

High water pressure in a water heater is primarily caused by high incoming water pressure, elevated water temperature, or steam buildup. Addressing these factors is essential for safe operation.

How can an alarm system help with water heater leaks?

A water heater alarm system effectively provides real-time alerts for leaks, enabling you to take immediate action and prevent extensive damage. Such proactive measures are essential for safeguarding your property.

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