Why does the Chery Tiggo fan keep running?

[McZachary]

There are three possible reasons why the Chery Tiggo fan keeps running: faulty temperature control switch, faulty air conditioning switch, and faulty fan relay and wiring. Faulty temperature control switch: When the vehicle's temperature control switch fails, the computer cannot recognize the temperature level and can only continuously run the fan to achieve cooling. Faulty air conditioning switch: When the air conditioning switch fails, it cannot properly turn off the air conditioning fan, causing the fan to keep running continuously. Faulty fan relay and wiring: If the fan relay is damaged or there is an issue with the wiring, the power-off command cannot be executed, resulting in the fan maintaining its running state.

[MaliaAnn]

Seeing this question reminds me of my past experience. The most common reason for a fan running continuously is either the temperature sensor in the cooling system misjudging the temperature as too high or the fan relay sticking, causing the circuit to remain on. It's not difficult to check: after parking and waiting for the car to cool down, first check if the coolant level is within the standard range—if it's low, you'll need to add specialized antifreeze. Then, try unplugging and replugging the fan relay to see if the fan resumes normal operation. If the problem persists, it might be a sensor malfunction or a short circuit in the electrical wiring. A fan that won't stop not only wastes battery power and increases fuel consumption but also risks overheating the engine and damaging other components. I remember one time I neglected it, and the fan kept running until the motor burned out, costing a lot to rebuild the entire cooling system. I recommend addressing the issue early—check basic things like fluid levels and relays yourself, but for a thorough fix, it's safer to have a professional auto shop inspect the electrical circuits and coolant temperature system. Regular maintenance, such as cleaning debris from the radiator, can prevent such problems.

[StElliot]

The fan running continuously really worries me about safety, especially for novice drivers. Causes include coolant leaks or temperature sensor failures, which can make the fan mistakenly think the car is overheating and keep working. Over time, the engine may exceed safe temperature limits, posing greater risks when driving on highways in summer. When checking, pay attention to the coolant temperature gauge reading: under normal conditions, the fan should operate intermittently; continuous operation indicates a control issue. Novices shouldn't tamper with the electrical circuits—start with simple checks like inspecting the radiator for dust blockage after parking and ensuring the fan blades are clean and unobstructed. A continuously running fan can drain the battery life—I once experienced constant fan noise and had difficulty starting the car the next day. Avoid delaying repairs, as complete failure of sensors or relays could lead to higher replacement costs. Routine maintenance, such as changing coolant quarterly, can reduce risks. However, to address this common issue in the Chery Tiggo, prompt professional repair is the wisest choice—safety is far more important than saving money.

[McJoanna]

The fan not stopping is usually caused by several key points: the temperature sensor sending incorrect signals, aging and sticking of the fan relay, or coolant leakage in the cooling system. A simple troubleshooting method: check if the water temperature gauge is normal when the car is parked and cold. The fan should only start when the temperature rises; otherwise, the relay is likely faulty. The relay is in a small box and can be easily unplugged and tested to see the effect. If that doesn't work, the sensor or a short circuit in the wiring requires professional handling. A continuously running fan consumes power quickly and may lead to battery discharge or even engine overheating. I recommend that the owner avoid major DIY repairs and only perform basic checks before sending the car for professional repair as soon as possible to prevent chain-reaction failure costs.

[IsabellaRose]

Last time, my friend's Tiggo had the fan constantly running due to a faulty temperature sensor, which made the fan mistakenly think it was overheating and kept working. After delaying for a week, the problem worsened: the engine overheated alarm went off, and when replacing the sensor, they also found a stuck relay. The out-of-control fan was accompanied by increased noise and higher fuel consumption. To diagnose the issue, first check if the coolant temperature gauge shows reasonable readings—normal values should have the fan starting and stopping in an orderly manner; continuous rotation should raise alarms. Ensure the plug connections are secure and eliminate any dust blockages. Timely repairs can save money and hassle. Afterwards, the fan's proper operation restored driving comfort significantly.

[EverettLee]

To prevent the fan from running continuously, regular maintenance of the cooling system is crucial. I make it a habit to check the coolant condition and radiator cleanliness every six months, and replace the fan relay every few years to prevent aging. Chery models are prone to sensor or circuit failures like this, where the fan keeps running not only consumes electricity but also accelerates component wear. Pay attention to daily water temperature changes; turning on the AC in high temperatures may cause the fan to run more, which is normal, but if it doesn't stop, the related systems need to be checked. Ensuring the electronic control unit receives correct signals is key. Learning basic DIY skills like checking fluid levels helps identify issues. In the long run, minor maintenance saves money and avoids major repair costs.