If you’re experiencing this problem, it’s possible that one or both of your water heater’s thermostats is set too high. To check the thermostat settings, turn off the power to the water heater, remove the access panel, insulation, and plastic safety guard from each heating element without touching any wires or electrical terminals , and test .Common Water Heater Problems. Featured. It may be as simple as adjusting the desired water temperature on the thermostat for the particular heating element..Troubleshooting an Overheating Electric Water Heater Scalding water from a tap presents a serious problem for homeowners. The water could be enough to cause burns, or it could lead to pressure issues inside the water tank..Troubleshooting the Thermostat on a Water Heater If you are planning to fix the water heater yourself, here are the steps to guide you through .