saab 9-3 fan blower not working

[skoulias]

hello i have problem with saab 9-3 aero 2003 tha fan/ blower not working after when change the battery can any help me?

[Wolfpack]

did it work before you replaced the battery? It's something no one would check before a battery change

[skoulias]

yes they work everything OK before change battery

[Mrubbert]

What have you checked ?
Any faultfinding strategy ?
To get good answer you need to fill up info.
Try saab forums.
Buy a book.
Open window :)

[kevfield]

Hi i have come across this fault a few time,s and it was the blower motor speed regulator, that is located on the passanger side blower motor housing... hope this helps

Thanks kev

[vares]

Power MOS-FET is dead in blower speed regulator.