Keeping Your Tankless Water Heater Efficient: Maintenance Do's and Don'ts

Tankless water heaters have gained popularity due to their energy efficiency, compact size, and ability to provide hot water on demand. However, like any appliance, they require regular maintenance to ensure optimal performance and longevity. By following a few key do's and don'ts, you can keep your tankless water heater in Tyler Texas running efficiently for years to come.

Tankless water heater in Tyler Texas up close

The Importance of Tankless Water Heater Maintenance

Unlike traditional models, tankless heaters provide hot water on demand, heating water directly as it flows through the unit. This efficiency means any maintenance issues can quickly affect your hot water supply. Regular upkeep, such as descaling and cleaning filters, ensures your tankless water heater operates smoothly and efficiently, providing reliable hot water whenever you need it.

Do's of Tankless Water Heater Maintenance

1. Do Regularly Inspect for Leaks

Why: Early detection of leaks can prevent major damage and repairs.  

How:

  • Visual Inspection: Look around the unit and connections for any signs of water leakage.
  • Listen for Drips: Sometimes, you may hear a drip, even if you don’t see one. Follow the sound to its source.
  • Frequency: Perform a quick check every month.

Leaks can be caused by various factors, including loose connections, corrosion, or high water pressure. Identifying and fixing these issues early can save you from extensive damage and expensive repairs. If you notice any signs of leakage, it's best to call a professional to assess and repair the issue.

2. Do Clean the Inlet Filter

Why: The inlet filter prevents debris from entering your water heater, ensuring proper water flow and heating efficiency.

How:

  • Turn Off the Heater: Ensure the power and water supply are off.
  • Locate the Filter: The filter is usually located at the cold water inlet.
  • Remove and Clean: Take out the filter and clean it under running water. If it’s particularly dirty, use a soft brush to remove debris.
  • Reinstall: Once clean, reinstall the filter and turn the water supply back on.
  • Frequency: Check and clean the filter every six months.

A clogged filter can restrict water flow, reducing efficiency and potential damage to the heating elements. Regular cleaning of the inlet filter is a simple task that can improve the performance and lifespan of your tankless water heater.  

3. Do Schedule Annual Professional Maintenance

Why: Professionals can thoroughly inspect and maintain your tankless water heater, addressing any issues you might miss.

What’s Included:

  • Thorough Inspection: Checking all components, including the heat exchanger, burner, and venting system.
  • Performing Necessary Repairs: Addressing any worn-out parts or potential issues.
  • Ensuring Safety: Ensuring all safety mechanisms are functioning correctly, reducing the risk of accidents.

Annual professional maintenance is crucial for keeping your tankless water heater in top condition. Technicians have the expertise to identify and fix problems that may not be apparent to homeowners. Regular professional maintenance not only ensures efficient operation but also extends the lifespan of your unit.

4. Do Use a Water Softener if You Have Hard Water

Why: Hard water can cause mineral build-up, reducing the efficiency of your heater.

How: Install a water softener to reduce the mineral content in your water, which can decrease the frequency of descaling needed.

Hard water contains high levels of minerals like calcium and magnesium, which can accumulate in your tankless water heater and clog the heating elements. A water softener can significantly reduce these mineral deposits, enhancing the efficiency and longevity of your unit.

5. Do Flush the System Regularly

Why: Flushing helps remove sediment and mineral build-up, ensuring efficient operation.

How: While this can be a DIY task, it is often best left to professionals to ensure it's done correctly and safely. Flushing should be done every 6-12 months for households with hard water. In areas with softer water, once every 1-2 years may suffice.

Flushing the system involves running a descaling solution through the unit to dissolve and remove mineral deposits. This process helps maintain the efficiency of the heating elements and prevents blockages that can reduce water flow and heating performance.  

6. Do Check the Venting System Regularly  

Why: Proper venting is crucial for the safe operation of your tankless water heater in Tyler, Texas. Blockages can lead to dangerous carbon monoxide build-up.

How:

  • Visual Inspection: Regularly check the exterior vent for obstructions, such as bird nests or debris.
  • Professional Inspection: Have a professional inspect the venting system annually to ensure there are no leaks or damage.  

Blocked or damaged vents can prevent proper exhaust of combustion gases, posing a serious safety risk. Regular inspections can ensure that your venting system is clear and functioning correctly.

a Tankless water heater in Tyler Texas

Don'ts of Tankless Water Heater Maintenance  

1. Don't Ignore Error Codes

Why: Error codes can indicate significant issues that need immediate attention.

Action: If your water heater displays error codes, refer to the manual for guidance and call a professional if needed.

Modern tankless water heaters are equipped with diagnostic systems that display error codes when something goes wrong. Ignoring these codes can lead to more severe problems and potential system failure. Always address error codes promptly to ensure your unit operates safely and efficiently.

2. Don't Attempt Major Repairs Yourself  

Why: Major repairs require professional expertise to ensure safety and proper functioning.

Action: Always call a professional for any significant issues, such as persistent leaks, unusual noises, or frequent error codes.

While homeowners can handle some maintenance tasks, major repairs should always be left to professionals. Attempting to fix complex issues without the proper knowledge and tools can result in further damage and safety risks.

3. Don't Set the Temperature Too High

Why: Setting the temperature too high can cause excessive wear on the unit and increase the risk of scalding.

Action: Keep the temperature at a moderate level, typically around 120°F (49°C), to balance safety and efficiency.

High-temperature settings can cause undue stress on your tankless water heater, leading to faster wear and potential failure. Additionally, excessively hot water increases the risk of scalding. A moderate temperature setting ensures both safety and optimal performance.

4. Don't Overload the System

Why: Tankless water heaters have a maximum flow rate. Trying to run too many hot water appliances simultaneously can exceed this rate, resulting in a drop in temperature and efficiency.

Action: Be mindful of your water usage and avoid running multiple hot water fixtures at the same time. If you frequently need more hot water, consider upgrading to a unit with a higher capacity.  

5. Don't Use Harsh Chemicals for Cleaning

Why: Harsh chemicals can damage the internal components of your tankless water heater.

Action: Always use cleaning solutions that are recommended by the manufacturer or specifically designed for tankless water heaters. If you're unsure, consult a professional for advice.

Using harsh or abrasive cleaners can corrode the internal components of your tankless water heater, leading to inefficiency and potential failure. Opt for gentle, manufacturer-approved cleaning agents to ensure the longevity and proper functioning of your unit.  

6. Don't Ignore the Installation Location

Why: The location of your tankless water heater can impact its efficiency and safety. Installing it in a cramped or poorly ventilated area can cause operational issues.

Action: Ensure that your tankless water heater is installed in a location that allows for adequate ventilation and access for maintenance. If you're considering relocating your unit, consult a professional to ensure it's done correctly.

woman checking her Tankless water heater in Tyler Texas

Keep Your Tankless Water Heater in Tyler, Texas, Running Efficiently!

Maintaining your tankless water heater is essential for ensuring it operates efficiently and safely. Whether you need routine maintenance, professional descaling, or a thorough inspection, Bannister Plumbing is here to help. Our team of experienced technicians is dedicated to providing top-notch service and ensuring your water heater stays in prime condition.

Don't wait until a minor issue becomes a major problem. Contact us today!