How to Tell if You Need to Repair or Replace Your Tankless Water Heater


Ever find yourself in the midst of a gloriously warm shower, only to be rudely interrupted by a sudden stream of cold water? If this scenario sounds familiar, you might face some troubles with your tankless water heater. But the question remains: should you repair or replace it altogether? This guide aims to help you arrive at an informed decision. It will walk you through the telltale signs that your heater needs attention and discuss when a simple tankless water heater repair or replacement might be your best bet.

Age and Efficiency

A tankless water heater typically has a lifespan of around 20 years. If yours is older than that, it might be time to replace it with something more efficient. You can also check the rating on your current model: if it’s below Energy Star standards, then you stand to benefit from an upgrade.

Hot Water Production

Low hot water production isn’t always a sign of a faulty heater but could indicate problems. If cold water continues to mix with your hot water, you might need to repair or replace your tankless water heater, depending on the severity of the issue.


Any visible signs of rust and corrosion can point toward major problems with the pipes and tank in your heating unit. If rust is present, you should get it checked out as soon as possible – in some cases, a replacement might be necessary.


As with any other appliance, your tankless water heater will experience gradual wear and tear over time. If you notice a decrease in performance, such as higher utility costs or longer wait times for hot water, you should consider a repair or replacement.


If you hear strange noises from the heater, like creaking or gurgling sounds, it could be a sign of an underlying issue. You should have the unit checked out to determine if repair or replacement is necessary.


A leak from the tankless water heater could be due to a faulty part or pipe. In any case, you need to have it looked at as soon as possible – depending on the extent of the damage, repair or replacement might be required.

No matter which option you might choose, it’s important to have a professional assess the situation first. A qualified technician will be able to diagnose the problem and ensure that your heater is up-to-date with all safety standards. With the right maintenance and care, your tankless water heater can last many years – so don’t delay seeking professional help. Call the pros today!

Comments are closed.