The warm air in my car is not hot. The master said that the heater tank was blocked. What should I do?

1, check the warm air in the car, and blow the heat from the warm air small water tank into the cab with a blower. If the air volume is insufficient or the distribution of cold and hot air is not good, the heat of the small water tank of the warm air cannot be radiated, and the temperature of the warm air cannot be increased. At this point, first check whether the filter element is dirty or blocked, clean it, and replace it in time if necessary.

2. Check the operation of each gear of the blower to ensure that each gear has sufficient speed. If the knob is set to the warm air position, the air volume is large enough and the wind direction is normal, and the cold air is blown out, check whether the cable of the hot and cold air control flap in the warm air box falls off, whether the warm air impeller is damaged, whether the flap falls off, etc. After troubleshooting, the warm air will get hot.

Extended data:

Other reasons that affect the warm air is not hot:

1, warm water valve failure

The warm water valve is actually an electric control valve, which is installed between the intake pipe of the warm air box and the small circulation pipeline of the engine. The opening of the valve is controlled by the air-conditioning computer, so as to control the refrigerant flow into the warm air box and achieve the purpose of controlling the warm air temperature of the air conditioner more accurately. After the hot water valve fails, the opening of the electronic control valve is no longer controlled by the computer, and it is in the state of normally open, normally closed or fixed position. At this time, there is no coolant flowing through the warm water tank or the flow rate is uncontrolled, so the warm air temperature of the air conditioner is naturally uncontrolled.

The thermostat is always on.

If the thermostat is always on, it will also cause the warm air to be not hot. After the thermostat is normally open, the coolant begins to circulate from the idle speed of the engine. If the water temperature is low for a long time in winter in the north, the air conditioning warm air is naturally not hot. It is obvious from the thermometer that the pointer is obviously lower than the normal scale. In addition, low water temperature for a long time will lead to high fuel consumption, increased wear and tear, and the engine will not work at the optimal temperature; When the water temperature is low for a long time, it needs to be maintained and checked immediately.

3. Insufficient antifreeze

The lack of antifreeze in the cooling system is the most common reason why the warm air is not hot. When designing the engine cooling system, engineers will give priority to engine heat dissipation, and then the warm air can work normally. When the coolant is insufficient, the coolant will circulate in the engine first. At this time, there is no "water" in the warm air circulation pipeline, and most of the warm air tank is gas. At this time, the air conditioning warm air is naturally not hot. After adding antifreeze, the warm air tank is filled with boiling coolant, and the warm air will naturally heat up.

Phoenix. Is the com- air conditioner heater broken in winter? It turns out that they are the culprit.