Buick Rainier blower not blowing air despite replacing blower motor and resistor on Buick Rainier

Some Buick Rainier owners report experiencing issues with the blower not blowing air even after replacing the blower motor and resistor. These problems may stem from a defective blower motor that fails to respond properly, despite being newly installed. Additionally, some owners encounter electrical issues, such as damaged wiring or faulty connections, which can prevent the blower motor and resistor from functioning correctly. Other potential causes include a blown fuse, a malfunctioning relay, or a defective control module that impacts the blower motor's operation. If the blower motor remains non-functional, it is often necessary to replace the blower motor to restore airflow. If problems persist after these replacements, seeking a professional mechanic's diagnosis is advisable to uncover any underlying issues affecting the vehicle's airflow.