The car air conditioner heater doesn't work, is it broken?

The air heater of automobile air conditioner is not ventilated, the air duct is blocked or the filter element of air conditioner evaporation box is blocked. The warm air of the car blows the heat of the small warm air box into the cab through the blower. If the air volume is insufficient or the distribution of cold and hot air is not good, the heat of the small warm air box cannot be dissipated, and the temperature of the warm air will not rise. At this point, check whether the filter is dirty or blocked, clean it, and replace it in time if necessary. The thermostat is often opened or opened too early, which makes the cooling system circulate too early and the outside temperature is very low. Especially when the car is driving, cold air will quickly cool the antifreeze, and the engine water temperature will not rise and the warm air will not be hot.

1. This is normal. For many novice users, don't worry too much, because entrepreneurship needs to be warmed up. The greater the power of the air conditioner, the faster the air can be heated. Then, see if anyone has used it, and change heating to cooling. Generally speaking, air conditioning can prevent cold air when heating, that is, prevent supercooled air from blowing out. After the air conditioner is turned on, the heating has been running normally. When the temperature reaches about 30 degrees, hot air will be sent out to avoid the uncomfortable feeling of cold air blowing out.

2. When the air conditioner does not produce warm air, first of all, it depends on whether there is wind in the air conditioning system. If there is no wind, then the problem should be the air conditioning fan or switch. If it is windy but not hot, then the problem lies in the water tank or the water tank pipeline. In order to find out the specific reasons, we must make an accurate judgment according to the performance of the heating system. Both the air conditioning control panel and the temperature switch are in warm air mode. The air conditioning warm air switch of low-end cars is in manual mode, and the high-end cars are in automatic temperature control mode. If the air conditioner warm air control switch is not set to warm air mode, the air coming out may be cold air.

3. Comparing the internal circulation air volume with the external circulation air volume, it is found that the internal circulation air volume is in normal use, which may be that the air conditioning filter screen is blocked in time, and whether the internal circulation air volume is the same may involve the falling off of the internal duct and the timely maintenance of the air conditioning duct fan. It may be that the lines are in good contact. Check the direction adjustment of blower circuit and safety air outlet in time. When adjusting, select all air outlets, try to blow out air or crosswind, and check the internal air duct. The above is that the car air conditioner heater doesn't work. Is it broken?