What's wrong with the slow heating of the car?

The heat energy of automobile warm air is cooling water. The reason for the slow temperature rise is that the engine has just started and the water temperature is not hot. As long as the water temperature rises to 90 degrees, the heating will be normal. If you use a heater, you don't need to turn on the AC switch. AC key is the refrigeration key of automobile air switch. Pressing this key will make the compressor work and start blowing cold air.

Precautions when turning on the heating Don't sleep in the car: Just like the principle of turning on the air conditioner, when the engine is working, if the fuel is not completely burned, it will produce high concentration of carbon monoxide. When the car is running, the air in the empty car can be convectively replaced by air conditioning equipment, so the concentration of carbon monoxide is very low.

Don't smoke in the car: when the heating is turned on, the car is a closed empty room, which is easy to breed bacteria. Smoking in the car is inherently harmful to health. Both first-hand smoke and second-hand smoke are smoked. In addition, amines and nicotine in the smoke will adhere to the surface of the evaporator. When the air switch is not commonly used and it rains, bacteria will spread wildly on the evaporator surface, and when the air switch is turned on again, it will cause vehicle air pollution.