my blower for heat wont work

[1995z71]

for some reason i cant understand why the blower wont work untill i turn the switch all the way up to high?, works fine in high but wont turn on before that? anyone know why?

[unplugged]

Most likely the low speed portion of the high/low relay. It will cost you around $15

Per AutoZone:The Relay - HiLow Blower is located: Front seating area, center, under dash, mounted on brace

Looks like this:

[1995z71]

thanks, that sounds like it would do it, i will take a look at it, thanks for the help