If you need 30 gallons of hot water and you have a 40 gallon tank you re fine.
Electric hot water heater issues.
How electric water heaters work electric water heaters use either 120 or 240 volt power 240 volts is more common to energize metal heating elements that protrude into the water heater tank through the side wall.
Typical settings are 140 to 160 degf.
If the electric water heater output water is too hot you can adjust the thermostat to a lower setting.
Start by ruling out power.
An electric hot water heater is actually not a complicated device.
When there s no hot water the problem can stem from lack of power a faulty electric thermostat or a faulty upper electric heating element.
Electric water heaters are high voltage 240 volt appliances that are dangerous to work with when the power is on.
Before checking any electrical parts of a water heater shut off the power to the heater s circuit by turning off the appropriate breaker in your home s service panel breaker box.
Some of the typical problems that occur are common to both types but other issues are unique to electric water heaters.
If your hot water usage is more than 75 of the water heater s capacity consider installing a bigger water heater.
That helps when.
The water could be hot enough to cause burns or it could lead to pressure issues inside the hot water tank.
Beware that any temperature above 120 degf.
Is scalding and a mixing valve may be needed for safety.
Thanks for providing the most common issues if water heater and hot water system.
Several types of electric water heater issues can cause problems with water temperature.
Symptoms can range from no hot water to inadequate hot water to water that s too hot.
Another thing that i ve noticed is that it create disturbing sounds inside.