What are the reasons for the radiator fan of the Baojun 730 not working?
4 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.
I've been driving my Baojun 730 for almost three years, and last month I encountered a situation where the fan wasn't working, which really scared me. At that time, during hot weather, the water temperature was high while driving, but the fan showed no signs of activity. After taking it to the repair shop, they found out the fan temperature sensor was broken. The mechanic mentioned that a blown fuse is a common issue and that checking the fuse box location is something you can do yourself; however, replacing a faulty fan motor requires professional tools; issues with the relay or electrical circuits also need to be checked. If not repaired in time, the engine could overheat, leading to serious problems, or even breaking down on the road. I also learned to use a Bluetooth OBD tool with my phone to read fault codes for auxiliary diagnosis. Now, I've made it a habit to check the radiator and fan status every month, prioritizing safe driving. Small problems can trigger a chain reaction; spending a little time to solve them early saves both money and worry.
I've been repairing cars for decades before retirement, and issues like the radiator fan not working are quite common in models such as the Baojun 730. Key causes include blown fuses, stuck fan blades or a faulty motor, and malfunctioning control relay coils. Poor contact due to oxidized or rusted wiring connections is also frequent. If the fan doesn't operate, poor radiator cooling increases engine load and accelerates aging. I recommend owners regularly check coolant levels, clean dust buildup around the fan, and use a tool to test the fan's operation if necessary. Addressing issues early prevents roadside troubles, and simple maintenance can significantly extend the vehicle's lifespan.
