Air conditioner not working

Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Scan for codes then see if there are any dtc's.
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Thursday, September 5th, 2019 AT 4:44 PM (Merged)
Tiny
BUBS58
  • MEMBER
  • 2 POSTS
  • 2006 KIA SEDONA
  • 3.0L
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 150,000 MILES
AC stopped working abruptly. No AC indicator light when pressing switch, no fan/blower, no compressor
Not fuses
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Thursday, September 5th, 2019 AT 4:44 PM (Merged)
Tiny
WRENCHTECH
  • MECHANIC
  • 20,761 POSTS
If you're absolutely sure there are no blown fuses anywhere, then it's probably the main control head itself.
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Thursday, September 5th, 2019 AT 4:44 PM (Merged)
Tiny
BUBS58
  • MEMBER
  • 2 POSTS
Hi Wrenchtech. Thank you for such a quick response. I only saw one fuse that I thought had anything to do with a/c and that was in the engine fuseblock. There was also an a/c compressor relay. Are there other fuses that I should check that would not be marked obviously(to me anyway) that they are related to this problem? What is a climate control head and how is it designated as a part to purchase at an auto parts store?
Thank you,
Dana
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Thursday, September 5th, 2019 AT 4:44 PM (Merged)
Tiny
WRENCHTECH
  • MECHANIC
  • 20,761 POSTS
You need to test every single fuse using a test light with the key on.

The control head is the unit where the controls are. That will most likely be a dealer only part.
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Thursday, September 5th, 2019 AT 4:44 PM (Merged)
Tiny
BNAB
  • MEMBER
  • 1 POST
  • 2006 KIA SEDONA
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 152,000 MILES
Hello,
My A/C wouldn't work and I was told it was the compressor. We put a new compressor on and a/c still don't work unless we jump it. We checked the fuses under the hood and relays but nothing unless I use a piece of wire where the a/c fuse suppose to be to jump/bypass it that way. How can I fix this issue? I did put a/c oil and freon in it that it allowed me to do but had to bypass it to get it to take it in.
Do you have any other suggestions.
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Thursday, September 5th, 2019 AT 4:44 PM (Merged)
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,709 POSTS
Have you checked the wiring between the switch and the compressor for continunity? Also, have you checked the cycle switch?
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Thursday, September 5th, 2019 AT 4:44 PM (Merged)
Tiny
COSTONE
  • MEMBER
  • 1 POST
  • 2005 KIA SEDONA
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 70,000 MILES
My AC was working fine in the morning then when I was heading home in the afternoon it just started blowing hot air. I had the freon levels checked and they are fine. Any ideas?

Thank You
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Thursday, September 5th, 2019 AT 4:44 PM (Merged)
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
When you turn the a/c on do you hear the clutch engage the compressor, if so-check if the air blend door is stuck on the heat position.
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Thursday, September 5th, 2019 AT 4:44 PM (Merged)
Tiny
LILLIAN WEEKS
  • MEMBER
  • 1 POST
  • 2005 KIA SEDONA
  • 3.5L
  • 165,000 MILES
Cooling fans and A/C fan not working. A/C blowing hot air. Have checked the fuses and moved every relay that was possible, still no luck.
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Thursday, September 5th, 2019 AT 4:44 PM (Merged)
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
See picture of cooling fan relays under hood. if relays are good then it may be fans are bad or ect for one fan or a wiring issue try putting twelve volts to fans to see if they work . it can be those as well then have it scanned for codes by a mechanic.
https://www.2carpros.com/articles/how-to-check-an-electrical-relay-and-wiring-control-circuit
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Thursday, September 5th, 2019 AT 4:44 PM (Merged)

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