The water temperature of the car is normal, but the air conditioner and heater don't work. What's the matter?

It is due to the damage of engine water circulation system parts, joint leakage or cylinder gasket leakage that the coolant is insufficient, so that only a small amount of coolant circulates in the warm air pipeline or not at all, resulting in the warm air is not hot.

Solution-just add coolant to ensure the normal water circulation system of the engine. If there are other problems, please solve them first, and then add coolant to the normal level.

(2) During the previous maintenance, the thermostat was not installed due to the high water temperature, or the thermostat was damaged in the normally open position, so that the engine water circulation was always in a state of large circulation. Coupled with the low outside temperature and good heat dissipation, it is difficult to raise the engine water temperature, so the warm air is not hot.

Solution-Add or replace a new thermostat.

Extended data:

maintain

Judging whether the air conditioning system is running well is actually very simple. If it is found that the air conditioning system is not well cooled, the air volume is small, or there is no cooling at all, it is necessary to check whether the components are operating normally and whether there is a lack of condensing agent. The condenser must be added according to the model in the vehicle manual.

All these can be done in specialty store. It is worth noting that the air conditioning filter should be replaced regularly. Generally, when driving in urban road conditions, it is necessary to replace the air conditioning filter element about 3000 kilometers. This can not only make the air intake system cleaner, but also avoid the decrease of refrigeration capacity caused by the blockage of air conditioning filter core.

In summer, the temperature difference between inside and outside the car is large. When entering the car, it is not advisable to adjust the air conditioning temperature too low immediately. You can use a lot of natural wind to blow away the hot air in the car first, then don't close all the windows, turn on the air conditioner, and wait until your body gets used to it, then adjust the air conditioner to the required temperature and close the windows. In this way, our bodies will not be uncomfortable because of the sudden drop in external temperature.

The temperature of the air conditioner is not as low as possible. The most comfortable temperature for human body is about 23 degrees Celsius. In the sunny afternoon in summer, the air conditioner should not be turned on too low, which can not only resist the scorching sun in summer, but also ensure that the ambient temperature of the human body is not too low, which leads to "air conditioning disease" and also responds to the call of the state for energy conservation, emission reduction, low carbon and environmental protection.

Passengers had better not smoke in the car when the air conditioner is turned on. Because the air in the car circulates in a relatively closed environment when the air conditioner is turned on, first, the smoke is not easy to escape, and second, the tiny particles in the smoke will attach to the air inlet filter screen of the air conditioner, resulting in long-term odor in the car.

Regular professional air conditioning system cleaning, sterilization and deodorization maintenance.