1. The small heater water tank is clogged
If the car heating system is not used for a long time, the heater may not be hot when used in winter. The main reason is that the small heater water tank is clogged. , after the small warm air water tank is clogged, hot water does not pass through the small water tank, resulting in no warm air. The clogged small warm air water tank may cause cold air to blow out. The reason for this phenomenon is that the car owner does not replace the antifreeze for a long time. caused.
If the air-conditioning ducts are not cleaned for a long time, the small heater water tank may become clogged. It is recommended that car owners do a comprehensive maintenance of the car's heater system before winter comes.
2. The heater control panel is damaged
The heater control panel is damaged just like the light bulb control switch at home is broken. When the car owner turns on the heater switch, the heater switch fails. The corresponding heating air supply signal is transmitted, resulting in the phenomenon that the heating air is not hot. If the heating air is not hot due to the heating air switch, the car owner needs to go to a professional repair shop or 4S shop for processing.
3. There is air in the water channel
There is air in the water channel, which leads to insufficient supply of hot air and abnormal warm air. The air in the water channel will not only make the warm air not hot, but also cause In severe cases, the engine may be overheated and cause other malfunctions, which require the car owner to handle in time. If the problem cannot be handled by oneself, it is recommended to seek professional maintenance personnel to handle the problem.
Extended information
Precautions for using heaters in winter
1. Do not turn on the heater while the car is running
Pass the heater when the car is heated The blower blows the waste heat from the engine into the car. When the engine is just started, the engine has not yet generated enough temperature. In this case, turning on the warm air not only has no effect, but also increases the discharge of the battery.
2. Do not idle with the heater on
When the car is idling, the engine's fuel combustion is insufficient. Not only may it cause an increase in carbon deposits in the car engine, but it may also produce excessive carbon monoxide. This can easily cause carbon monoxide contained in the warm air to enter the car.
3. Do not blow directly on the face
When driving in winter, some drivers may not pay much attention to the direction of the air outlet. Sometimes the air outlet may blow onto the face. This situation can easily cause the driver to become sleepy and have a great impact on the driver's driving.