What are the reasons why Wuling Hongguang does not produce hot air?
2 Answers
The reasons why Wuling Hongguang does not produce hot air are that the thermostat is always open or opens too early, or there is air resistance in the cooling system. The following are the specific reasons: Thermostat always open or opens too early: This causes the cooling system to enter the large circulation prematurely. When the external temperature is very low, especially when the car is running, the cold air quickly cools the antifreeze, preventing the engine water temperature from rising, and the warm air will not heat up. Air resistance in the cooling system: If there is air resistance in the engine cooling system, it will lead to poor circulation of the cooling system, resulting in high water temperature and the fault of warm air not heating up. If there is always air in the cooling system, it is caused by a damaged cylinder gasket allowing air into the cooling system. If the inlet pipe of the small heater radiator is very hot while the outlet pipe is relatively cool, this situation indicates that the small heater radiator is blocked and should be replaced.
As a seasoned driver who has been driving the Wuling Hongguang for several years, I've encountered the issue of the AC not blowing hot air. Common causes could be insufficient or leaking coolant, as the heating system relies entirely on its circulation to transfer heat; if the thermostat gets stuck, the engine may overcool, preventing hot air from coming out. It's also necessary to check if the heater control valve is damaged or if the heater core is clogged with debris, affecting the output of warm air. Simple DIY solutions: first, check the level in the overflow tank and top up the antifreeze if it's low, then verify if the temperature setting was mistakenly adjusted to cold air; if there's no noticeable improvement, take it to a professional shop for inspection immediately—don't risk driving in the cold winter, as it poses significant safety hazards. Regular maintenance, including cleaning the AC system, can help prevent such issues.
