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 warm air tank will not be radiated, which will also cause the temperature of the warm air not to come up. At this time, 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, and each gear must reach sufficient speed. If the knob is set to the warm air position, the air volume is large enough, the wind direction is normal, and the cold air blows away. Check whether the outgoing line of the cold and hot air control panel of the control panel is disconnected, whether the heater impeller is damaged and whether the cover plate is disconnected. After troubleshooting, the warm air will become hot.
Does it cost gas to turn on the heater?
In theory, heating warm air does not cost oil. When the warm air is turned on, the heat of the coolant in the engine is used to raise the temperature and circulate it to the small water tank. When the blower works, it blows the heat from the small water tank into the car. The load is relatively small. The fuel consumption is slightly different from that of vehicles without heating, but it can be basically ignored.