3 Most Common Issues With Tankless Water Heaters


limescale on tankless water heater in Chandler, AZ

Tankless water heaters are known for their energy efficiency and ability to provide hot water on demand. However, like any appliance, they can encounter issues over time. Let’s explore the three most common problems with tankless water heaters and the solutions that will likely involve water heater repair in Chandler, AZ.

Here are the three most common issues that require tankless water heater repair:

1. Insufficient Hot Water

While an on-demand hot water supply is one of the main features of tankless water heaters, a malfunctioning tankless water heater will not make good on this aspect. This issue can occur for several reasons. It may be due to an undersized unit for your household’s hot water demand. A water heater replacement with a larger capacity unit may be necessary in such cases. Alternatively, an insufficient hot water supply could be caused by a dirty or malfunctioning heat exchanger, which can often be resolved with tankless water heater repair.

2. Flow Rate Problems

Tankless water heaters rely on a minimum flow rate to activate the heating element. If the flow rate is too low, the heater may not turn on, resulting in cold water. This can be a problem for low-demand fixtures like faucets. Point-of-use water heater installation or adjusting the minimum flow rate settings may help resolve this issue.

3. Mineral Buildup and Scaling

Mineral buildup and scaling are common issues in areas with hard water. Over time, minerals like calcium and magnesium can accumulate inside the tankless water heater’s heat exchanger, reducing its efficiency and lifespan. Regular maintenance, such as descaling, can help prevent this problem. However, in severe cases, you may need to consider tankless water heater replacement if scaling has caused irreparable damage.

While tankless water heaters offer many benefits, they can run into issues, and it’s essential to address these issues promptly and consult a professional for repair services. Gold Star Plumbing & Drain aims to ensure that your tankless water heater operates efficiently and provides a continuous hot water supply.

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