Tankless Water Heater Maintenance: Keep Your Hot Water Flowing

A tankless water heater is an excellent investment—providing endless hot water, saving energy, and taking up less space than traditional models. But like any home appliance, it requires regular care to run at peak performance. Without proper maintenance, even the most efficient tankless system can lose efficiency, develop costly problems, or fail prematurely. In this guide, we’ll explain why tankless water heater maintenance matters, what it involves, and how HAT Plumbing, Heating & Air helps homeowners across DFW protect their investment.

1. Why Tankless Water Heater Maintenance Matters

• Prevents Scale Buildup – Hard water minerals can accumulate inside the heat exchanger, reducing efficiency and water flow.
• Extends System Life – Routine flushing and cleaning prevent wear and tear.
• Maintains Efficiency – Keeps your system running at optimal energy performance, lowering utility bills.
• Prevents Unexpected Breakdowns – Maintenance helps identify and address issues before they become emergencies.

2. How Often Should Maintenance Be Done?

For most homes, annual maintenance is recommended. In areas with hard water, it may be necessary every 6–9 months. Skipping service for several years can lead to costly repairs or the need for an early replacement.

3. What’s Included in Professional Tankless Maintenance

At HAT Plumbing, Heating & Air, our tankless water heater maintenance service includes:

• Flushing the System – Removes mineral deposits and scale buildup from the heat exchanger.
• Cleaning the Inlet Filter – Ensures no debris restricts water flow.
• Inspecting the Venting System – Prevents blockages and ensures safe operation.
• Checking Gas or Electrical Components – Confirms safe, efficient function.
• Testing Water Pressure & Temperature Settings – Ensures consistent, comfortable hot water.

4. Signs Your Tankless Water Heater Needs Service Now

• Reduced hot water flow or fluctuating temperatures
• Error codes on the display panel
• Unusual noises during operation
• Water with an odd smell or taste
• Increased energy bills without higher usage

5. DIY vs. Professional Maintenance

While you can clean the inlet filter and check basic settings yourself, a professional technician has the tools, training, and experience to:

• Perform a complete descaling safely
• Diagnose hidden problems
• Protect your system’s warranty coverage
• Ensure proper safety and performance checks

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