Problems with the Astra 1.8 automatic vehicle

Good afternoon, I have a problem with a Chevrolet Astra 1.8 automatic. Sometimes when I turn off the car, the electro -ventilator stays on and does not go out, so the entire battery is consumed, they told me to change the electro -ventilator's overmark. Someone could tell me where this is located in the Relay Panel, because in the car manual he does not say it.

greetings