Why does my hot water heater keep overheating?
Why does my hot water heater keep overheating? Causes and Solutions for a Water Heater Overheating. If your water heater is making hot water too hot all of a sudden, it's likely the result of the temperature setting being too high, a malfunctioning thermostat, high mineral content, or the pressure relief valve is blocked. What happens if water heater is too hot? Minerals in the water may build up on the element's surface. When this happens, the element can overheat. The water in the tank will absorb that excessive heat, causing the water to come out of the tap at...