Cleaning process of warm air tank:
First, open the sewer pipe clamp with carp pliers. In the process of cleaning the water tank, just connect the pipe and the water tank will not leak.
Second, unscrew the water inlet pipe of the warm air small water tank with carp pliers, and pull out the pipe after the clamp is opened, which is the key to get through the warm air small water tank.
3. Insert the nozzle of the high-pressure air pump into the water inlet pipe of the small warm air tank.
4. Turn on the air pump, and high-pressure air will blow into the whole circulating waterway, including the pipeline of the heater tank. Then high-pressure air enters and the dirty water remaining in the cylinder is blown out.
5. Add cleaning agent, then fill the water tank with tap water, start the vehicle for 30 minutes, and turn on the warm air.
6. Add water three times in this cycle. Before changing water each time, dredge the pipeline with high-pressure gas at an interval of about 10 minute, and the discharged water will become clear. Finally, add antifreeze.
On the basis of making sure that the warm air tank and the hot and cold changeover switch (there is no cable changeover switch in general cars) are not broken, then the biggest possibility of no warm air is that the pipeline of the warm air tank is blocked, the hot water can't reach the small water tank, and there is no hot air in the fan. The repair method is simple. The problem can be solved by blowing off the impurities blocking the pipeline with high-pressure air. There is no need to disassemble the center console and replace the water tank.