Your water heater is an essential part of your daily routine, ensuring you have hot water for everything from showers to washing dishes. Like any other appliance, it requires regular maintenance to function efficiently and last for years. Neglecting this upkeep can result in costly repairs, reduced efficiency, and an early replacement. In this blog, we’ll break down the importance of preventive maintenance for your water heater, the steps involved in proper care, and the recommended practices to keep your system running smoothly.

At Pristine Plumbing, we understand the importance of maintaining your water heater to ensure it operates optimally. This guide will help homeowners, small business owners, property managers, and contractors understand how to maintain their water heaters and why it’s crucial to do so regularly.

What is Preventive Maintenance for a Water Heater?

Preventive maintenance is a proactive approach to ensure that your water heater operates efficiently, remains reliable, and avoids unexpected failures. The goal of preventive maintenance is to identify small issues before they become big problems. This includes tasks like cleaning, inspection, and minor repairs that help maintain the unit’s performance.

Unlike reactive maintenance, which addresses problems after they occur, preventive maintenance ensures that your water heater is less likely to encounter issues, saving you time and money on expensive repairs. By performing regular maintenance, you can extend the life of your water heater, improve energy efficiency, and maintain a steady supply of hot water.

Why Is Preventive Maintenance Important?

Regular maintenance is critical for several reasons:

  1. Increased Efficiency: A well-maintained water heater works more efficiently, reducing the amount of energy it needs to heat water. This can lead to lower energy bills and a more environmentally friendly household. 
  2. Prolonged Lifespan: With the right maintenance, your water heater can last significantly longer. Most water heaters have an average lifespan of 10-15 years, but regular care can help you get the most out of your investment. 
  3. Avoiding Emergency Repairs: Preventive maintenance helps identify potential issues early, so you can address them before they cause significant damage. This minimizes the risk of emergency plumbing problems like leaks or complete breakdowns. 
  4. Improved Safety: Regular maintenance can help ensure that your water heater operates safely. If you have a gas-powered unit, routine checks can prevent dangerous gas leaks or malfunctions. 
  5. Maintaining Water Quality: By flushing the tank and cleaning the system regularly, you help maintain clean, fresh water, preventing rust or sediment buildup from affecting the quality of your water. 

How Often Should You Perform Preventive Maintenance?

For most homes and businesses, a professional water heater inspection and maintenance should be performed once a year. This includes flushing the tank, inspecting the heating elements, and checking for any signs of wear or damage.

However, the frequency of maintenance may vary depending on several factors, including:

  1. Water Quality: If you live in an area with hard water, you may need to flush your water heater more frequently, perhaps every six months. Hard water can cause mineral buildup inside the tank, which can reduce efficiency and damage the unit over time. 
  2. Type of Water Heater: Tank-style water heaters may need more frequent attention than tankless models, as sediment tends to accumulate more easily in tanks. For tankless heaters, maintenance often involves descaling, which may need to be done annually or more frequently depending on water hardness. 
  3. Age of the Water Heater: Older water heaters may require more frequent inspections to catch potential issues before they become serious problems. As your water heater gets older, it may need additional care to keep it functioning properly. 
  4. Manufacturer Recommendations: Always check your water heater’s manual for the manufacturer’s recommended maintenance schedule. Some models may require more frequent service based on their design and technology. 

Recommended Preventive Maintenance for Your Water Heater

Now that you understand the importance of maintenance, let’s go over the key tasks involved in keeping your water heater in good shape:

1. Flushing the Tank

Sediment buildup is one of the most common problems with water heaters, especially in areas with hard water. Sediment, such as calcium and magnesium, can settle at the bottom of the tank, causing your unit to work harder to heat the water. This can lead to inefficiency and even premature failure of the heating elements.

How to Flush Your Tank:

  1. Turn off the power supply (electric) or gas supply (gas water heater). 
  2. Shut off the cold water supply valve. 
  3. Attach a garden hose to the drain valve at the bottom of the tank. 
  4. Place the other end of the hose in a suitable drainage area. 
  5. Open the drain valve and allow the water to drain out. 
  6. After the tank is empty, briefly open the cold water valve to flush out remaining sediment. 
  7. Close the valve, remove the hose, and turn the cold water supply back on. 
  8. Restore power or gas to the water heater. 

Frequency: Flushing the tank once a year is recommended. If you have hard water, you may need to flush it more often.

2. Inspecting the Anode Rod

The anode rod plays a crucial role in protecting your water heater from corrosion. It works by attracting corrosive elements in the water, preventing them from damaging the tank. Over time, the anode rod deteriorates and needs to be replaced.

How to Inspect the Anode Rod:

  1. Turn off the power or gas supply and the cold water supply. 
  2. Remove the anode rod from the top of the tank (this may require removing the top panel or loosening a bolt). 
  3. Inspect the rod for signs of corrosion or wear. If it’s less than 50% intact, it’s time to replace it. 
  4. If the rod is in good condition, reinstall it. 

Frequency: It’s a good idea to inspect the anode rod every 1-2 years. If you have hard water, the rod may wear down more quickly and need to be replaced more often.

3. Checking the Temperature Setting

The thermostat controls the water temperature inside the tank. If it’s set too high, your water heater will use more energy to heat the water, and if it’s set too low, you might not have enough hot water for your needs. The recommended temperature for your water heater is around 120°F (49°C).

How to Adjust the Thermostat:

  1. Locate the thermostat on the water heater. 
  2. Use a flathead screwdriver to adjust the temperature dial to 120°F (or the manufacturer’s recommended setting). 
  3. If your water heater has two thermostats (in the case of electric models), make sure both are set to the same temperature. 

Frequency: Check the temperature setting annually to ensure it’s still set to the ideal level.

4. Testing the Pressure Relief Valve

The temperature and pressure relief valve (T&P valve) is a safety feature designed to prevent excessive pressure from building up inside the tank. It’s important to test the valve annually to ensure it’s functioning correctly.

How to Test the T&P Valve:

  1. Place a bucket or pan under the valve’s discharge pipe. 
  2. Lift the lever on the valve and allow some water to flow out. 
  3. Release the lever and check if the valve closes properly. 

If the valve doesn’t release water or continues to leak after being tested, it may need to be replaced.

Frequency: Test the T&P valve every year.

5. Checking for Leaks

Leaking water around your water heater is a serious issue that should be addressed immediately. Leaks can cause water damage to your home and lead to the failure of your water heater.

How to Check for Leaks:

  1. Inspect the area around the tank, including the drain valve, heating elements, and pipes. 
  2. Look for any signs of water pooling around the base of the unit. 
  3. Check the venting system (for gas models) for any blockages or damage. 

Frequency: Inspect for leaks during your annual water heater maintenance or if you notice any unusual sounds or smells coming from the unit.

When to Call a Professional

While regular maintenance can be performed by homeowners, there are times when it’s best to call a professional plumber. If you notice any of the following, it’s time to contact an expert:

  • Strange Noises: If you hear loud rumbling, popping, or hissing sounds, it could indicate a serious issue like sediment buildup or a malfunctioning heating element. 
  • Water Discoloration: If your hot water is rusty or discolored, it could mean that the anode rod is worn out or the tank is corroding. 
  • Water Heater Leaks: If your water heater is leaking, it’s crucial to have it inspected immediately to prevent further damage. 
  • No Hot Water: If your water heater isn’t producing hot water, it could be a sign of a thermostat or heating element issue. 

A professional plumber can accurately diagnose the problem and recommend the appropriate solution.

Conclusion

Preventive maintenance is essential for keeping your water heater running efficiently and prolonging its lifespan. By performing simple tasks like flushing the tank, inspecting the anode rod, adjusting the temperature, and testing the pressure relief valve, you can keep your water heater in optimal condition for years to come.

At Pristine Plumbing, we offer comprehensive water heater maintenance, repair, and installation services for homeowners and businesses in the Treasure Valley. If you’re unsure about how to maintain your water heater or need a professional inspection, don’t hesitate to contact us today!