Have you noticed water pooling around your Marathon water heater? A leak can be frustrating and worrying, especially when you rely on hot water daily. It’s a common issue that many homeowners face, and understanding what’s happening is the first step to resolving it.
In this article, you’ll learn about the potential causes of leaks around the heating element and how to address them effectively. Whether it’s a simple fix or something that needs professional attention, knowing what to look for can save you time and money. Let’s help you get your water heater back in top shape so you can enjoy uninterrupted hot water again.
Key Takeaways
- Common Leak Symptoms: Look for water pooling, a reduced hot water supply, corroded areas near the heating element, or unusual sounds to identify leaks early.
- Causes of Leaks: Leaks around the heating element can stem from corrosion, improper installation, or deterioration of gaskets over time.
- Regular Inspections: Conducting routine inspections can help maintain your Marathon water heater and prevent costly repairs by ensuring all components are in good condition.
- Diagnosis Tools: Use basic tools like a flashlight, wrench, screwdriver, bucket, and towel to effectively diagnose and manage leaks.
- Repair vs. Replace: If repairs become frequent or the unit shows significant rust or age (over 10 years), it may be more economical to replace the entire water heater.
- Professional Help: Consult experts for proper installation and repairs if you’re unsure about handling any issues to ensure optimal performance and safety.
Overview of Marathon Water Heaters
Marathon water heaters stand out for their durability and efficiency. These heaters feature a non-metallic design, ensuring resistance to corrosion that often affects traditional metal tanks. Known for their energy efficiency, Marathon models come with high insulation values, helping you reduce utility bills.
You can find Marathon water heaters in various sizes and configurations, including electric and gas models. Electric versions utilize a single or double element design, providing flexibility in installation. Most models also include advanced features like adjustable thermostats and multiple temperature settings.
Common issues arise when water leaks around the heating element. This leakage can happen due to faulty gaskets, improper installation, or deterioration over time. Identifying leaks early is crucial, as they can lead to more extensive damage.
To maintain optimal performance, regular inspections play an essential role. Checking the condition of the heating elements, ensuring proper sealing, and verifying the electrical connections ensure longevity. Addressing issues promptly keeps your water heater operating at its best and avoids costly repairs.
Common Issues with Water Heaters
Water heaters can experience various issues, impacting efficiency and reliability. Understanding these common problems helps you maintain optimal function and prevent costly repairs.
Understanding Water Heater Elements
Water heater elements provide the necessary heat for warming the water. Electric models typically contain two elements: the upper and lower elements. If the element fails, the heating process disrupts, leading to insufficient hot water. Identifying a faulty element is essential. You may notice unusual sounds, inconsistent temperatures, or the heater not working at all.
Symptoms of a Leaking Water Heater
Detecting a water heater leak early prevents significant damage. Look for these symptoms:
- Water Pooling: If you spot water pooling around the base, it signals a potential leak.
- Diminished Hot Water Supply: A sudden decrease in hot water can indicate a leak in the tank, allowing water to escape.
- Corrosion or Rust: Inspect the area around the heating element. Signs of corrosion can suggest a leak.
- Unusual Sounds: Listen for hissing or bubbling sounds, which might signify water escaping from the tank.
Timely action when noticing these symptoms can help maintain your water heater’s performance and longevity.
Causes of Marathon Water Heater Leaking Around Element
Understanding the causes of leaks around the heating element in your Marathon water heater is crucial for effective troubleshooting and repair. Here are the primary factors that contribute to this issue:
Corrosion and Wear
Corrosion and wear can lead to significant leaks around the heating element. Over time, minerals in the water can cause the metal components to deteriorate. You might observe signs of rust or discoloration near the element. Regularly inspect your unit for these signs, and consider investing in water softeners if hard water is an issue in your area.
Improper Installation
Improper installation often results in leaks around the element. If the heating element isn’t securely fitted or the proper seals aren’t used, leaks are likely. Verify that the installation aligns with the manufacturer’s guidelines. If you’re uncertain, consult with a professional to ensure everything is correctly installed and sealed to prevent future leaks.
Diagnosing the Leak
Identifying the source of a water leak around your Marathon water heater involves careful inspection and the right tools. Accurate diagnosis prevents further damage and helps in making timely repairs.
Tools Needed for Inspection
Gather the following tools before examining your water heater:
- Flashlight: A flashlight illuminates dark areas, helping you see behind and beneath components.
- Wrench: Use an adjustable wrench to check fittings and connections.
- Screwdriver: A screwdriver assists in removing access panels to inspect internal parts.
- Bucket: Place a bucket under the water heater to catch any dripping water during inspection.
- Towel: Keep a towel handy for quick clean-ups and to dry any wet areas.
Step-by-Step Leak Diagnosis
Follow these steps to diagnose leaks effectively:
- Turn Off Power: Ensure your water heater is powered down to avoid accidents during inspection.
- Check for Water Pooling: Inspect the area around the base for any signs of pooling water.
- Examine the Heating Element: Inspect the area where the heating element enters the tank. Look for signs of corrosion or wear around the gasket.
- Inspect Connections: Tighten any loose connections using a wrench. Check for any visible leaks from fittings or pipes.
- Evaluate the Pressure Relief Valve: Look for water dripping from the pressure relief valve, which could indicate a problem.
- Inspect the Tank: Examine the exterior of the tank for signs of rust or leaks. Pay attention to any corrosion points.
A thorough inspection helps pinpoint issues and enables you to take appropriate action to address leaks around your Marathon water heater.
Solutions to Address the Leak
Addressing a leak around your Marathon water heater involves specific steps to ensure proper repair or replacement. You’ll want to evaluate the situation carefully to determine the most effective solution.
Repairing the Element
Repairing the heating element can solve leaks with proper attention. Follow these steps:
- Turn Off Power: Always disconnect your water heater from the power source before starting any repairs.
- Drain the Tank: Use a hose to drain excess water from the tank. Position a bucket or drain pan to collect any remaining water.
- Inspect the Element: Look closely at the heating element’s gasket and connections. If you see signs of wear or damage, consider replacing the gasket right away.
- Replace the Gasket: Unscrew the element. Remove the old gasket and replace it with a new one, ensuring a snug fit to prevent leaks.
- Reassemble: Reattach the heating element securely. Double-check that all connections are tightened properly.
- Restore Power: Refill the tank with water, then reconnect the power to the unit. Monitor for leaks once the water reaches the normal temperature.
When to Replace Your Water Heater
Sometimes, repairs aren’t enough. If your Marathon water heater exhibits persistent problems, it may be time for a replacement. Here are signs to look out for:
- Age of the Unit: If your heater is over 10 years old and shows signs of wear, consider a replacement.
- Frequent Repairs: If you find yourself repairing the heating element or other components regularly, it’s often more economical to replace the entire unit.
- Significant Rust or Corrosion: Visible rust or corrosion on the tank’s exterior indicates deterioration. A large amount of rust suggests structural weakness.
- Inconsistent Hot Water Supply: If you’re frequently running out of hot water, your unit may no longer meet your household’s needs effectively.
- Higher Energy Bills: Increased utility bills can signal your water heater’s inefficiency. A new, energy-efficient model can help reduce costs.
Acting promptly on these signs can save you from further complications and maintain your hot water supply.
Conclusion
Dealing with a leak around your Marathon water heater can be a hassle but staying proactive makes all the difference. By understanding the potential causes and knowing how to diagnose and repair issues, you can keep your water heater running smoothly. Regular inspections are key to catching problems early and ensuring your unit remains efficient.
If you find yourself overwhelmed or unsure of the next steps, don’t hesitate to reach out to a professional. They can provide the expertise needed to get everything back in order. With a little attention and care, you can enjoy reliable hot water for years to come.
Frequently Asked Questions
What causes water pooling around my Marathon water heater?
Water pooling can occur due to leaks around the heating element, faulty gaskets, or improper installation. Mineral buildup and corrosion can also lead to deterioration, causing water to escape. Regular inspection is crucial to identify issues early.
How can I tell if my water heater has a leak?
Common signs of a leaking water heater include visible water pooling around the unit, diminished hot water supply, soft rust spots, and unusual noises like hissing or dripping. If you notice any of these, investigate promptly.
What should I do if I find a leak around the heating element?
If you discover a leak, first turn off the power to the unit. Inspect for any visible signs of wear or loose connections. You may need to replace gaskets or consult a professional if the problem persists.
How often should I inspect my Marathon water heater?
Regular inspections every 6 to 12 months are recommended. This helps identify early signs of wear, corrosion, or leaks, ensuring the unit operates efficiently and prolonging its lifespan.
When is it time to replace my water heater?
Consider replacing your water heater if it is over 10 years old, requires frequent repairs, shows significant rust or corrosion, provides inconsistent hot water, or increases your energy bills. Prompt action can prevent further issues.
Can hard water affect my Marathon water heater?
Yes, hard water can lead to mineral buildup, contributing to corrosion and potential leaks. Installing a water softener can mitigate these issues, helping maintain your water heater’s efficiency and longevity.
What tools do I need to inspect my water heater?
Essential tools for inspecting a water heater include a flashlight, wrench, screwdriver, bucket, and towel. These items will help you carefully check for leaks and other problems during your inspection.

Jake Newman is Appliance Mastery’s expert on refrigeration and cooling systems. With over a decade of experience in the appliance repair industry and certification from NASTeC, Jake is a trusted source of knowledge for homeowners who want to troubleshoot and repair their fridges, freezers, and air conditioning units.