12 crv2.4 air conditioner ac does not display whether the air conditioner is on or off.

The reason may be that the AC switch is broken and the contact is poor, so the AC light will naturally not light up. Or the fuse of the air conditioner is blown, which is located in the fuse box in the engine compartment. You can check whether there is something wrong with the insurance. After the fuse is blown, it won't work without the power terminal. If there is no problem, it is best to go to a 4s shop or a repair shop to find a professional to check and repair.

Matters needing attention in the use of automobile air conditioner

1, don't turn on the heating and air conditioning immediately when the car is hot in the morning, and then turn on the air conditioning when the water temperature in the engine water tank rises;

Don't set the air conditioning temperature too high. Excessive temperature for a long time will cause drowsiness and affect driving. In addition, don't let warm air blow directly on your face.

3. If the window begins to fog after the warm air is turned on, it is necessary to increase the speed of the warm air and blow for a while, so that the fog will disappear and will not appear repeatedly;

4. Change the air after a long-distance driving, and the air circulation in the closed space is not smooth. If it takes a long time, it will also cause people in the car to breathe poorly;

5. Turn off the air conditioner before parking and turn on the external circulating natural wind, which can clean the air duct of the air conditioning system and prevent bacteria from breeding.