You rely on your water heater to produce hot water. When it’s too hot, it’s essential to take action and call a plumber for water heater repairs. Scalding water is not only dangerous to touch, but also indicates a problem with the appliance. These are three common reasons the water might overheat.

Why Is Your Water So Hot?

1. Damaged Thermostat

The most likely culprit is a faulty thermostat. The average household’s temperature is set to 120 degrees Fahrenheit. Sometimes manufacturers set them to 140 degrees, which could result in burning temperatures. However, when the problem occurs suddenly, it’s usually because the thermostat’s detector isn’t identifying the point when your water reaches the desired temperature. At that point, it’s supposed to shut off. When damaged, it continues to heat the water.

2. Mineral Buildup

Your plumber may recommend flushing the water heater if there’s a significant amount of mineral buildup at the base of the tank. This occurs when an excess of calcium and magnesium in the water accumulates over time.

As the appliance heats the water, it overheats the buildup and could lead to elevated temperatures. A buildup is more likely to develop if you have hard water in your home. If you do, flush the tank at least once a year and install a water softener.

3. Faulty Valve

The pressure relief valve is a safety mechanism designed to eliminate hot water when the temperature reaches 210 degrees or greater. It also relieves built-up pressure that can develop if the tank reaches over 150 pounds per square inch.

If the valve leaks or is damaged, it could pose a safety threat by causing pressure buildup in the tank and forcing water temperatures to remain elevated. Plumbers can perform a test to determine the valve’s efficiency. If it’s broken, they’ll turn off the appliance and replace the part.
 

If you’re concerned about scalding water in your home, turn to the professionals at Norblom Plumbing in St. Paul, MN. Proudly serving clients throughout the Twin Cities since 1923, this family-owned and -operated company offers quality water heater installation and repairs. Visit the website to learn more or call (612) 827-4033 to schedule an appointment with a plumber.