Dear Haley:
It is very easy:
When you repeatedly press the program button you will have the following preset temperature settings in sequence: 40°C , 60°C , 80°C , 100°C and 70°C, the first 4 temperature settings (40 , 60 , 80 , 100) are not (Keep Warm Mode) so you can use them if you don't need the (Keep Warm Mode) function.
But 70°C is a (Keep Warm Mode), when 70°C is displayed you can use (+) button to increase the 70°C by 5 degree increments till 95°C, or the button (-) to decrease the 70°C till 50°C, all these settings are (Keep Warm Mode) settings and you will see after the desired temperature is reached that the on/off button continue illuminating red (in stand-by) to repeatedly, from time to time, turns the system on and off to keep the desired temperature fixed, so if you don't need to keep the desired temperature fixed simply press the on/off button, or lift the kettle from its Power Base and put it back, to stop the (Keep Warm Mode) function and the button's red light will be also off, but the desired temperature setting will stay as it is in stand-by and if you need to reach it again press the on/off button to restart the heating process and when the set temperature is reached again it will be stopped automatically but it will be again in (Keep Warm Mode) unless you press the on/off button to stop this mode's function again.
Otherwise any setting will stay as it is unless you change it or you turn the power point button off and then on to restart.

Hello VF! You sweetheart! I think I have fixed it now. Thank you so much for your help. Much appreciate you taking the time to write out a detailed explanation. Very kind. <3

Dear Haley:
I who appreciates these generous compliments and kind gentle words. Actually I did nothing other than a should-be natural human behavior.
One of countless reasons why people live mutually in societies is to support their wellbeing by complement each other otherwise no single human on earth throughout the history can or could master all jobs, crafts, skills and also possess all of its material, tools and accessories to serve himself and dare to live autonomously. And for sure you yourself don't know, or actually you know, that you serve directly or indirectly, from where you live, numerous of people literally allover the world and receive their service directly or indirectly as well exactly at the same moment.
Receiving kind nice render words is another reason to live healthy and socially life.
Best happy times now and forwards I wish you and your beloved.

Dear udithaslr:
First what do mean by (not work)?
* When you plug the kettle's Power Base into a functioning power point, does the display illuminate with green digits showing the water temperature before heating or not?
*If the display illuminate and you press the on/off button, is the button illuminating with red light but the kettle doesn't start heating the water inside?
The answer is important to have an idea about what is happening and whether you can try a possible troubleshooting.
Otherwise generally you should try this: underneath the kettle in the center of its outer plastic bottom you see several concentric metal circles which serve as contact conductors when you turn the kettle clockwise or counterclockwise on its Power Base, and in the center of the Power Base there are also several concentric plastic circles where you can see between them cooper contact points and also one is protruding from the side of the outer circle, turn the power point Off and unplug the Power Base from it and try to clean all those metal circles and cooper contact points from any kind of dirt, electrical isolator such piece of plastic bag or cling wrap or even cooper oxide with ear cotton tip. Otherwise this kettle is really heavy duty and lasts long unless it is maybe used carelessly.

Dear Sarbmalhi:
This nice premium quality kettle (Bellini BTK615) is, before, usually sold in Target Stores and also in ebay but apparently not any more because Bellini company upgraded the model to a new fashionable Bellini Kettle - BDK20B but without digital display which means it doesn't have the same all features and functions as in this version, the new model is now also sold in Target Stores ($49) and in ebay at least ($69), as you can make your own Online search about that.