Hello my aircon is not working now, it worked fine last year was ice cold and worked all summer long, i put it on today the green light came on but it didn't make the normal noise? normaly you can here a little fridge type noise, but nothing today, does it need refilling? if so where is the fill point? on my SPAM it was above theradiatorand i used a can from halfords but unsure on the kia sedona?? any help mostappreciated..