Posts Tagged: blower motor runs all the time

Why the blower motor fan keeps running after the car is turned off

Why the blower motor fan keeps running with the key off If your car has a variable-speed fan, it uses a blower motor controller instead of a blower motor resistor. It’s a solid-state device that allows the motor to run and variable speeds. However, if the blower motor fan keeps running after you turn off the car, that’s a sign of a failed blower motor controller; it fails in the ON position. Those controllers used to be installed only on vehicles with automatic climate control with variable speed fans, but … Read More