You may have the upper thermostat set at a higher temp than the lower.
Brand new water heater not working.
Remove the top service cover to the top element and press the red reset button 3.
The lower should be set slightly higher than the upper so that the lower is the one doing the heating.
Some common problems for all hot water heaters are pressure relief valves leaking water heaters and the water heater drain valve.
Turn the power back on to the water heater 5.
To troubleshoot why your water heater does not get hot water.
If the fuse has burnt out or the circuit breaker has tripped that directly controls the electricity for your heater it will not work.
Panels off and push in the red reset buttons they may have popped out during installation put everything back together.
Turn off the power to the water heater in the service panel.
Turn off the power to the water heater.
Test the wires to confirm the power is off using a non contact voltage tester.
Put the top service cover back on.
Check the circuit breakers in your fuse box.
Only one of the 2.
Common electric water heater problems are replacing bad heating elements and checking electric water heater thermostats.
Check the heat setting on both.
If it trips again then the upper and lower stats should be replaced.
Turn off the power to the water heater then take off the two.