Soak chickpeas in water overnight, covered.
The next day, peel the carrots from the peel and cut into slices.
Put chickpeas, carrots and 1 1/4 l water in pressure cooker, heat on 2nd ring, 10 minutes on minimum temperature, then turn off kitchen heat and leave closed stove for about 1 hour more.
Just before serving, open the cooking pot, add 1 teaspoon of salt and 1 dash of olive oil and serve the soup.