Chosen Solution

I would really like to use this vacuum on my hardwood floors, but I am not sure how I can adjust it from its carpet setting.

The power button actually has 3 settings: II, I, and 0. The 0 setting is for off, while the II and I settings both turn the vacuum on. The II setting is for carpet and the I setting is for bare floors, so adjust the power switch accordingly. The power button is located just behind the dust canister.

Do you close the red power suction on the side of the hose when vacuuming carpets

The power switch has 3 positions. The first one is off. It has a O on the switch. This turns off the vacuum cleaner. The second position is on. Suction only for hard floors. Looks like this I. Last position is suction AND roller brush on for carpeted floors. Looks like this ll.