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Discussion Starter · #1 ·
Ive searched the threads and see many folks have had issues with their a/c. Well my 2015 is only blowing hot air at the moment and I cant find the culprit. I am well out of warranty so I wanted to see if I can track down the issue. I attempted to add refrigerant but that doesn't seem to be the issue as my pressure is well with the green and not low. My blower motor was making weird noise for a while so I replaced that to no resolve as well. I did notice the cooling fans are not coming on at all even after driving with the AC on MAX. Could it be a bad relay? I did manually test the high and low fan relays and the fans come on when I apply direct power. The compressor is spinning. Any help would do.
 

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2015 Kia Cadenza - Snow White Pearl
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Maybe it’s the hot/cold blend door actuator? You have to take out the glove box and a plastic panel left side of the passenger footwell to see it in action. Try having the heat all the way up, then turn it down slowly and see if the actuator moves. It was one of the things I checked when I had my high pressure hose spring a leak. If you can’t figure it out, I recommend going to the dealer for an AC diagnostic. Firestone tried to overquote me for both hoses before I had the dealer look at it.
 

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Discussion Starter · #3 ·
Maybe it’s the hot/cold blend door actuator? You have to take out the glove box and a plastic panel left side of the passenger footwell to see it in action. Try having the heat all the way up, then turn it down slowly and see if the actuator moves. It was one of the things I checked when I had my high pressure hose spring a leak. If you can’t figure it out, I recommend going to the dealer for an AC diagnostic. Firestone tried to overquote me for both hoses before I had the dealer look at it.
Wish I would have known this while replacing the blower motor lol. Ill give it a try. I've asked around on facebook groups and a lot of folks stated their issue was with the High Pressure hose having a leak.
 
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