What is the role of blower resistor?
The role of the blower resistor is to adjust the air volume and temperature.
Blower resistor through different resistance values to limit the current to the fan, so as to achieve the different speed of the fan, control the speed of wind speed. This working principle makes the blower resistor's main function is to adjust the air volume and temperature. Specifically, blower resistors work by mechanically switching the resistor resistance, or electronically changing the fan speed through the air conditioning system, and the change in resistance limits the current passing through the motor, which determines the speed at which the blower operates. Therefore, the blower resistor not only regulates the size of the air volume, but also affects the temperature of the air outlet by controlling the current, so as to achieve the adjustment of the temperature in the car.
In addition, the blower resistor is usually located on the right rear side of the gas pedal, between the firewall and the bellows. This design allows the blower resistor to work at the same time that there is wind to cool it, helping to keep it working properly. In order to keep the blower working normally, the air conditioning speed regulating resistor needs to be installed in the air duct, so that when the blower is working, there will be wind to cool the resistor, thus prolonging its service life .
Blower resistance is always burning what is the reason?
Blower resistance always burning may have the following reasons:
1. Compressor or control circuit short circuit, or condenser motor, compressor electromagnetic clutch, evaporator motor failure; 2. Car air conditioning fan fuse does not meet the requirements, the current value is small, the air conditioning system short circuit, the compressor load is too large, the blower resistance will always break; 3. Too much current leads to bad heat dissipation, too much internal resistance of the fan, too much flow resistance current leads to loosening, and the service life of the resistor is shortened. It is recommended to replace the blower. If your car's blower resistance is always burning, you can consider checking the above aspects to find out the problem and repair or replace it in time. In addition, in order to ensure the normal operation of the blower, it is recommended to clean and maintain it regularly to avoid the accumulation of dust and impurities, which affects its heat dissipation effect.
In the automobile air conditioning system, the blower is one of the very important components, which is responsible for the cool air or hot air to the car. If the blower fails, the air conditioning system will not work normally, affecting the driving comfort. Therefore, when the blower resistance is always burning, it needs to be dealt with in time. It is recommended to repair and replace the car in a professional car repair shop to ensure the normal operation of the car air conditioning system. At the same time, in order to avoid the recurrence of similar problems, we should regularly maintain and maintain the car, keep the car parts in good condition, and improve the service life and safety of the car.
If your car's blower resistance is always burning, it is recommended that you first check the various parts of the car's air conditioning system, especially the part related to the blower. First of all, you can check whether the compressor and control circuit are working normally and whether there is a short circuit. If there is a problem, it needs to be fixed in time.
Secondly, you can check whether the fan fuse meets the requirements and whether the current value is normal. If the current value is too small, the air conditioning system is short circuit, the compressor load is too large, the blower resistance will always break, and it needs to be replaced in time. Finally, you can check whether the service life of the resistor has been long and whether it needs to be replaced. In short, timely detection of problems and maintenance or replacement can ensure the normal work of the car air conditioning system and improve driving comfort and safety.
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