Regular maintenance on your water heater is simple and will keep your heater working great, saving you money on plumbing calls. There are several things you need to check to ensure your heater is working correctly. Water heaters have a safety device that will open if the tank over pressurizes. If this valve is not working correctly the water heater can explode. You also need to check for any leaks or drips that may indicate something needs to be repaired. Sediment will build up inside the tank and clog the water lines. This needs to be cleaned out. You also need to be sure the thermostat is correct. You can drain out some water and see what the actual temperature is. If it’s not the same as the thermostat setting, it may need to be corrected to avoid scalding a bather.