Tankless water heaters are slim, energy-efficient devices that give you hot water whenever needed. They get rid of the need for storage tanks and make sure you always have hot water for a variety of jobs. But what happens when your trusted tankless water heater starts acting strange? Below, we’ll show you the five most important signs that a unit is having trouble.

1. Fluctuating Water Temperatures

One of the most noticeable signs of a failing tankless water heater is fluctuating water temperatures. Imagine stepping into a shower, only to be greeted by a sudden blast of cold water, followed by scalding hot water. This inconsistency can be not only frustrating but also a potential safety hazard. A malfunctioning tankless water heater might produce inconsistent or cold water, indicating underlying problems.

Fluctuations in water temperature can stem from issues like faulty temperature sensors or mineral buildup within the heater’s components. Minerals like calcium and magnesium can accumulate over time, affecting the heater’s ability to regulate water temperature properly. Regular maintenance and periodic descaling can help prevent this issue and ensure consistent water temperatures.

2. Reduced Water Flow

Another symptom of a failing tankless water heater is reduced water flow. If you notice that your once-powerful water stream has turned into a weak trickle, your tankless water heater might be struggling. Mineral buildup or blockages within the heater can restrict water flow through its pipes, diminishing the overall water pressure.

To fix low water flow, keeping up with your tankless water heater’s upkeep is important. Mineral buildup can be stopped by flushing the system and cleaning the parts. This keeps the water flowing easily. Regular repair not only keeps your appliance running well but also makes it last longer.

3. Error Codes on the Display

Modern tankless water heaters have advanced control systems that can display error codes when something isn’t functioning properly. Common error codes might indicate ignition failure, sensor malfunctions, or gas supply problems. These error codes are your heater’s way of communicating that something requires attention.

When you encounter error codes on the display of your tankless water heater, it’s wise to consult the user manual first. In some cases, you can troubleshoot and resolve minor issues on your own. However, if the problem persists or you need clarification on the cause of the error, it’s best to contact a professional technician specializing in tankless water heater repairs.

4. “Cold Water Sandwich”

Have you ever experienced a sudden shift from hot to cold to hot water during a shower? This phenomenon is known as the “cold water sandwich.” It’s a clear indication that your tankless water heater isn’t functioning optimally. The cold water sandwich occurs due to delays in heating water as it passes through the heater, resulting in a mixture of hot and cold water.

Delays in heating can be caused by various factors, including the heater’s design, flow rate, and temperature settings. Addressing this issue might involve adjusting the settings or considering an upgraded model with improved heating response time.

5. Unexpected Shutdowns

The most concerning symptom of a failing tankless water heater is unexpected shutdowns. If your heater shuts down on its own, it could be overheating, system errors, or safety mechanisms kicking in. An unexpected shutdown disrupts your hot water supply and indicates potential risks within the heater.

When your tankless water heater shuts down unexpectedly, taking immediate action is crucial. Ignoring this symptom can lead to further damage or even safety hazards. Contacting a technician to diagnose and repair the issue ensures your heater operates safely and efficiently.

Schedule Tankless Water Heater Services With Preferred Home Services

Whether you’re dealing with a malfunctioning tankless water heater, needing repairs, or considering a replacement, we’ve got you covered. We understand the inconvenience of a failing tankless water heater, so we offer same-day services to address your concerns swiftly. Our technicians are skilled, licensed, and insured, guaranteeing a professional and worry-free experience.

Call (864) 206-5620 and experience the benefits of a fully functional and efficient tankless water heater in Greenville, SC.