The vehicle heating system is not hot, which is divided into two reasons, one is caused by the engine cooling system, and the other is caused by poor operation of the heating control mechanism.
In maintenance, we must first determine which cause it is, and then carry out corresponding maintenance.
The method of discrimination is simple. Look at the temperature of the two inlet pipes of the warm air small water tank. If both pipes are hot enough, there is something wrong with the air flow control mechanism. On the contrary, if both pipes are cold, or one is hot and the other is cold, it is a problem with the cooling system.
After the water tank in Xiao Nuan is blocked, hot water does not pass through the small water tank, which leads to the phenomenon that warm air cannot be generated. The blocked water tank in Xiao Nuan may blow out cold air, which is caused by the owner's long-term failure to replace antifreeze.
If the air conditioning pipe is not cleaned for a long time, the small heater tank will be easily blocked. It is suggested that car owners should conduct a comprehensive maintenance of the car's heating system before winter comes.
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