All tank-based water heaters will have a temperature/pressure relief (TPR) valve. When your water heater creates high temperature and pressure inside its tank, the valve will release the pressure as per the requirement. However, in case it has to deal with a pressure higher than its capacity, it can get damaged.
For example, if your water heater’s automatic power-cut feature stops functioning, the unit will heat the water to an excessively high temperature, damaging the TPR valve; and the faulty valve then leaks water. In such a case, turn it off and call a professional to fix the issue with your water heater installation in La Mirada.