What are the reasons for the radiator fan of the Baojun 730 not working?
2 Answers
If the engine has reached actual high temperature but the fan fails to activate, it indicates a malfunction in the cooling system. Below is an introduction to the cooling system: 1. Primary function: The main role of the cooling system is to dissipate heat into the air to prevent engine overheating, but the cooling system also serves other important purposes. The engine in a car operates most efficiently at an appropriately high temperature. 2. Secondary function: If the engine becomes too cold, it accelerates component wear, reducing engine efficiency and increasing pollutant emissions. Therefore, another crucial function of the cooling system is to quickly bring the engine up to temperature and maintain it at a constant level.
I've been repairing cars for many years and have dealt with numerous cases of the Baojun 730 radiator fan not working. The main causes are blown fuses, aging fan motors, or faulty temperature sensors. The fuse is located in the fuse box in a position marked 'fan'—simply replace it. The fan motor may seize or stop working entirely after years of wear and tear; listen for unusual noises during inspection. If the temperature sensor fails, the computer won't recognize the radiator overheating and won't supply power to the fan. Additionally, the relay controls the current flow—if it fails, the fan won't receive a signal to start. Loose, corroded, or short-circuited wiring can also cause issues. Neglecting these repairs can lead to engine temperature spikes, white smoke, and even severe engine damage. I recommend having the fan system tested during routine maintenance—don't wait for a major failure. Before long trips, monitor the temperature gauge and pull over to check if it shows abnormalities.
