Why does my app say "Water too cold"?

This means that the temperature of the water leaving your water heater is colder than expected.

If you've used a lot of hot water, this indication will disappear on its own once the new water entering the heater has been heated.

If you haven't used a lot of hot water, it's important to check the reason for the drop. You can refer to the troubleshooting guide, right here: The water in my water heater is cold. What should I do?