Q.2 Adjusting Temperatures?
If you feel that the water is too hot, you can lower its temperature by turning the thermostat counter-clockwise.
When you feel the water to be too cold, you can increase its temperature by turning the thermostat clockwise.
The indicator light will turn off if the heater attains the temperature adjusted by the thermostat. You can use steps 1 and 2 in case the temperature is not at the set point required by you.