Keep Your System Running Efficiently
Tankless, or on-demand, water heaters are cutting-edge appliances designed to provide an endless supply of hot water while conserving energy by only heating water when needed. These systems are more efficient than traditional tank-based heaters, but they are also one of the most complex plumbing devices in the home. Regular maintenance is the key to ensuring optimal performance, extending the unit’s lifespan, and preventing costly repairs.
In this guide, we’ll cover the most important maintenance tasks for your tankless water heater, helping you keep your system in top shape year-round.
Note that these are general guidelines, always consult the manufacturer's instructions and maintenance schedule and follow all safety instructions.
1. Flush Your Tankless Water Heater to Remove Limescale
Over time, tankless water heaters accumulate mineral deposits, particularly limescale, on the heating chamber. This buildup can reduce efficiency, leading to longer heating times and higher energy bills. Regularly flushing your system—typically once a year—helps remove these deposits and keep the water heater running smoothly.
Here’s a general outline of the process, though it's important to consult your manufacturer’s manual for specific instructions:
- Turn off the power to the water heater.
- Attach a hose to the water heater’s flush valve.
- Use a descaling solution, typically white vinegar, to flush the system. Run the solution through the unit to break down the mineral buildup.
- After the flush, rinse the system with clean water to ensure no descaling solution remains.
Professional help is recommended if you're unsure of how to perform this task, as incorrect flushing can damage the unit.
2. Clean the In-Line Screen Filter to Prevent Clogs
Another important maintenance task is cleaning the in-line screen filter. This filter traps debris and sediment, preventing it from entering the water heater and causing damage. If the filter becomes clogged, it can reduce water flow and put stress on the unit.
Follow these steps to clean the filter:
- Turn off the incoming water supply to the unit.
- Locate the in-line screen filter on the cold water inlet.
- Unscrew the plug to remove the filter.
- Rinse the filter thoroughly under running water to remove any debris.
- Reinstall the filter and securely fasten the plug.
Regularly cleaning the screen filter, ideally during your annual maintenance routine, helps prevent blockages and maintains water flow efficiency.
3. Check for Leaks and Monitor Performance
Even with regular flushing and filter cleaning, it’s important to inspect your tankless water heater periodically for signs of wear or potential issues. Check for any visible leaks around the connections or the unit itself, and listen for unusual noises during operation, which could indicate a problem.
If your water heater is taking longer than usual to heat water, or you notice fluctuations in water temperature, it may be time to schedule a professional plumber. Catching small issues early can prevent more serious (and expensive) problems down the road.
Professional Tankless Water Heater Maintenance in Chicagoland
Maintaining a tankless water heater requires attention to detail and technical know-how, but the effort pays off by extending the life of your unit and ensuring it operates efficiently. For homeowners in the Chicagoland area, MR Plumbing Heating Air Electrical offers expert maintenance services to keep your tankless water heater in optimal condition.
Need help with your tankless water heater maintenance? Whether it's flushing the system or troubleshooting an issue, our licensed plumbers have the experience and expertise to handle it all. Contact MR Plumbing Heating Air Electrical today to schedule a maintenance service or for assistance with any of your plumbing needs.
