What is the reason for the Chevrolet Sail electric fan not working?
2 Answers
Possible causes include a blown fuse or a faulty relay. Here is more information about the electric fan: 1. Working principle: The electric fan in a car is controlled by a thermostat. When the coolant temperature rises to the upper limit, the thermostat turns on the power, and the fan starts working. When the temperature drops to the lower limit, the thermostat cuts off the power, and the fan stops. 2. Reasons for the fan not working: (1) Poor lubrication of the motor. (2) Overheating of the motor, leading to reduced load capacity and lower effective power output. (3) The starting capacitor's capacity decreases, resulting in insufficient starting torque to drive the load.
My old Sail also had the electric fan stop working once. After some troubleshooting, I found out it was a blown fuse. Open the fuse box on the left side of the engine bay, use needle-nose pliers to pull out the fuse corresponding to the cooling fan and check if the thin wire inside is broken—if it is, you'll need to replace it. If the fuse is fine, it's probably a bad relay. Those are the small black cubes behind the fuse box—ask a mechanic to tap them and listen for a clicking sound. Don’t risk driving in this summer heat; if the temperature gauge starts rising, pull over and shut off the engine immediately. Otherwise, you could overheat and damage the engine, which is way more troublesome. Last time I drove two kilometers with high temps and ended up spending nearly two grand on a new radiator—total waste.
