What is the reason for the electric fan not working when the air conditioner is turned on in an old Polo?
1 Answers
There are several reasons why the fan does not rotate when the air conditioner is turned on in an old Polo, including poor motor lubrication, reduced starting capacitor capacity, and prolonged motor usage. Below are the detailed explanations: 1. Poor motor lubrication: The fan does not rotate because the motor lacks sufficient lubrication, preventing it from driving the fan blades after installation. 2. Reduced starting capacitor capacity: The capacitor capacity decreases, leading to a reduction in the motor's starting torque, making it unable to drive the load. 3. Prolonged motor usage: After prolonged use of the fan, the motor wears out. When the motor's shaft sleeve wears, it is prone to burning out. Extended use of the motor also increases its internal resistance, reducing its load-bearing capacity and preventing it from driving the fan blades.