How to demist EC7 18 when the air conditioner is turned off?

1. The glass surface inside the car is foggy.

At this time, the temperature outside the car will be lower than that inside the car, and correspondingly, the temperature of the front windshield will be lower than that inside the car, so that the water vapor inside the car condenses on the glass and adheres to the surface of the glass, causing the window to turn white. This usually happens in rainy days or winter.

For models with manual air conditioning, you can choose the defogging mode of the front window, adjust the wind speed to the maximum, then turn on the air conditioning switch, and then adjust the temperature to the minimum, and the fog on the glass will disappear in a short time.

The reason for the fog is that the temperature inside the car is higher than that outside the car, and the cold water drops condense on the glass surface. So as long as the temperature inside the car is lowered, the effect of defogging can be achieved.

In order to reduce the temperature of the inner surface of the glass and blow away the water vapor on the glass surface more quickly, it is necessary to press the defogging key of the front window when defogging. When pressed, the air volume at the air outlet on the central control panel will be reduced, and most of the air volume will be blown out through the air outlet at the lower part of the front windshield.

When the weather is cold, although air conditioning can also be used to remove fog, it is difficult for people in the car. So we can also use air conditioning to warm the fog.

Manual air conditioning models can turn up the temperature and the air volume to the maximum, then turn on the defogging function of the front window, and wait for a few minutes to eliminate the fog.

Air conditioning refrigeration can indeed remove fog, but if the temperature is low, air conditioning refrigeration can be used to remove fog. Therefore, in the face of low outside temperature, we can use air conditioning warm air to demist.

However, the disadvantage of using warm air to remove fog is that when the warm air is just turned on, there will be more white fog on the glass inside the car, which will take some time to take effect. Of course, different models produce different warm air speeds. Using this method, you can only stop the car honestly and wait for a period of time to dry the air in the car before you can continue driving. In addition, the heating in the car makes the car too warm, which easily leads to the driver's drowsiness and traffic accidents.

2. The outer surface of the glass is fogged.

This situation is just the opposite of the fog on the inside glass, but the fog on the outside glass. It is because the temperature inside the car is lower than that outside the car, which leads to the condensation of water vapor outside the window. Usually this happens in summer, when the air conditioner is on in the car and the air outlet is blowing against the glass. After a long time, the glass temperature is much lower than the outside temperature. At this time, the water vapor with higher temperature outside the car will condense on its surface when it meets the glass with lower temperature.

In our daily life, there is a layer of fog on our front windshield for no reason? In fact, because they didn't have the defogging function of closing the front window, cold air kept blowing against the glass. After a long time, the temperature of the glass becomes lower than the external environment, and natural water vapor condenses on the surface of the glass. The solution is simple. Whether it is automatic or manual air conditioning, just close the air outlet of the front window.

If fog still appears on the surface of the front window after the defogging function of the front window is turned off, it means that there is something wrong with the wind direction baffle of your car air conditioner, and the wind direction cannot be accurately controlled, so you should take it to the repair shop for inspection.

●? The door glass is foggy.

Usually, if the front windshield is foggy, the windows of both doors will also be foggy. But don't be afraid, the manufacturer has come up with countermeasures.

1. The glass surface inside the car is foggy.

In this case, the principle of glass fogging is the same as that of the front windshield, because water vapor condenses when it meets cold to produce small water droplets.

As for the operation mode, it is the same as the operation method of fogging the front windshield. Friends with manual air conditioning can also adjust the wind speed to the maximum, turn on the A/C air conditioning switch, adjust the temperature to the minimum, and finally press the defogging button on the front window, and then quietly watch the fog on the door glass disperse. Automatic air conditioning, just turn on the automatic air conditioning switch, adjust the temperature to the lowest, and press the defogging key on the front window.

After pressing the front window defogging key, in addition to the air supply outlet under the front windshield, the air supply outlets of the side windows on both sides will also air out at the same time. In this way, the cold air of the air conditioner can be directly blown on the door glass.

Some cars have no side window air outlets on both sides of the central control panel. In this case, the air outlet of the air conditioner can only swing to the window glass manually. If this method is used, the defogging function of the front window must be turned off first, so as to avoid that the air volume at the air outlet of the central control panel is too small and the defogging effect cannot be achieved.

Some cars have no side window air outlets on both sides of the central control panel. In this case, the air outlet of the air conditioner can only swing to the window glass manually. If this method is used, the defogging function of the front window must be turned off first, so as to avoid that the air volume at the air outlet of the central control panel is too small and the defogging effect cannot be achieved.

The openings on both sides of the door and the central controller are used to supply air to the air outlet on the door. Therefore, be careful not to block the connection ports of these two ventilation pipes with foreign objects, and at the same time, check whether the rubber at the edge of the connection port is aging, so as to avoid the phenomenon of no air supply or air leakage.

The operation mode is the same as the common side window defogging, that is, the manual air conditioner will adjust the wind speed to the maximum, turn on the air conditioner switch, adjust the temperature to the minimum, and finally press the front window defogging key. Automatic air conditioner Turn on the automatic air conditioner switch, adjust the temperature to the lowest, and press the defogging key on the front window.

2. The outer surface of the glass is fogged.

This situation is consistent with the cause of fog on the front window.

●? abstract

Fogging on vehicle glass is very common, and it is very easy to cause traffic accidents due to lack of sight. The reason why the front windshield and door glass produce fog is because water vapor condenses when it is cold. Using the refrigeration function of automobile air conditioner to reduce the temperature inside the car and the temperature difference between inside and outside can achieve the effect of defogging. In addition to refrigeration, we can also use air conditioning to heat and blow dry the water vapor in the car to achieve the effect of defogging. Reasonable use of air conditioning system can effectively reduce traffic accidents caused by glass fogging.