Signs Your Tankless Water Heater Needs Repairs

A tankless water heater, also referred to as a constant-flow water heater or demand water heater, heats water as it pours out of the faucet. It doesn't store hot water like a conventional (tank-type) water heater does. Usually, you don't have to worry much about your tankless water heater – it's far more common for homeowners to call a plumber for help with failed or leaky conventional water heaters. But there are warning signs and symptoms that may indicate your tankless water heater needs repairs:

There’s no hot water coming out of the tap

Most tankless water heaters will stop producing hot water if the incoming cold-water supply contains debris, such as sediment, rust, sand, or even minerals from hard water. This can happen with many years of constant use, and an iron pipe will prevent your tankless heater from producing hot water. If your hot water has stopped flowing, or you no longer have a strong water flow, it's time to repair your tankless water heater. 

Your tankless unit is making odd noises

If you hear a loud knocking noise coming from your tankless water heater any time while it's heating water, it could be a sign of a malfunction, and the whole unit may need to be repaired or replaced. There are a variety of reasons why a tankless water heater might be noisy. The most common causes include a low-pressure drop across the unit, improper installation, and variable water pressure issues.

Your tankless unit is leaking water

Unlike traditional storage-tank water heaters, tankless water heaters do not store hot water for your household’s consumption. Thus, if you notice that your tankless unit starts leaking water, that is a sign of a big problem. Leaky tankless water heaters waste energy and money. 

Call a professional tankless water heater repair

A broken water heater can cause anxiety for any homeowner. Water heaters should be inspected yearly to ensure they are working properly. And if the unthinkable happens, you want to find an experienced professional who can work quickly to get your system up and running again. Call a trusted plumbing professional in your local area today!


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