Why is the Magotan's fan not spinning?

[SanPeter]

Reasons for the Magotan's fan not spinning: Coolant temperature not reaching the required level: Most automotive radiator fans operate with electronic temperature control, so the fan typically only starts spinning normally when the engine coolant reaches the required temperature. If the temperature is too low, the radiator fan won't rotate. Relay malfunction: If the coolant temperature meets requirements but the radiator fan still doesn't work, it could be an issue with the fan relay. A faulty relay can prevent the radiator fan from operating. Thermostat switch problem: If neither of the above issues is present, you should check the thermostat switch, as it can significantly affect the operation of the radiator fan and should therefore be inspected as well.

[Lamar]

I encountered this issue myself a while back, and later found out it was a blown fuse for the fan. If the car fan isn't spinning, the first thing to check is the fuse box, which is the black box in the engine bay. Open it up, look for the fuse marked with a fan icon, pull it out with pliers, and check if the metal strip in the middle is broken. If it's broken, just buy a replacement of the same spec at an auto parts store and swap it in. Also, the fan relay is prone to failure—it's that small square next to the fuse box. Pull it out and shake it to listen for any loose parts inside. Another possibility is a faulty coolant temperature sensor, which can misread the temperature and prevent the fan from working. This issue can range from minor to serious. Once, my fan stopped working, causing the temperature gauge to skyrocket, and I almost ended up with a seized engine. As soon as I noticed something was wrong, I pulled over immediately.

[GiannaLynn]

After all these years of repairing cars, I can say that when a Magotan's fan stops working, it's most likely an electrical issue—about 80% of the time. Common culprits include burnt relay contacts, blown fuses, or loose wiring connections. The fan motor itself rarely fails. The most dangerous scenario is when the fan doesn't spin during high temperatures, as this can cause the radiator to overheat and damage the engine. Here's a simple diagnostic method I recommend: Start the car cold and turn on the AC. The fan should spin simultaneously when the AC compressor engages—if it doesn’t, there’s likely a control system failure. Also, check if the fan blades are obstructed by debris like plastic bags, which is especially common during spring when poplar fluff is everywhere. Most importantly, never let the engine run at high temperatures for more than three minutes.

[AutumnLynn]

I previously experienced a fan stoppage with my Magotan as well. Upon inspection, it turned out to be an issue with the radiator temperature sensor, which is located near the radiator and responsible for sending temperature signals to the ECU. Wiring aging is also quite common, especially in the high-temperature environment of the engine compartment, where the insulation on wires can become brittle and short-circuit. Later, I used a multimeter to test the fan power supply line and found only 7 volts (normally it should be 12 volts). Following the clues, I discovered corrosion in the wiring harness. Remember to turn off the air conditioning immediately when the fan stops to reduce engine load. Once, a friend of mine ignored this issue and ended up spending over three thousand to replace an engine cylinder gasket.