My 2005 Vauxhall Vectra's heating system only works only setting number 4. The fan resistor was replaced by Vauxhall; stil not working. Fan motor was then replaced by a second mechanic - still not ...

The blower motor is the fan that pushes heated or cooled air through dashboard vents based on the climate system settings and the fan speed selected. Adjusting the fan speed sends a signal through a ...