Heater blower
 

Hi all ive just picked up a 2004/54 xc90 d5 the heaters don't work ive checked fuses etc nothing is blown my heated seats still work etc just got no air coming through the vents ive checked all settings and speeds but still doesn't work. Ive ordered a new blower fan and resistor anyway but is there any other things to check? Relay? Other fuses etc thanks