The iKettle 3rd generation can hold a maximum of 1.8 litres of water.

Inside the kettle body, there is a blue max fill line.

If you overfill the kettle the app will say overfilled.

If you need to get in touch, Smarter Support is open Monday to Friday 9am - 5:00pm GMT and can be contacted via the 'Contact Us' section on our website by clicking the following link: Contact Us