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Air conditioner not working

Tiny
WILDRICHIE69
  • MEMBER
  • 2006 KIA SEDONA
  • 100 MILES
Manual climate control not working at all. Manual climate control not working, no resp once from A/c, heater, fan, lights, checked fuses n relays all seem to be good, getting power to the circuit board, please help
Sunday, April 7th, 2013 AT 4:08 PM

51 Replies

Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
If the fan is not working, you need to check it and power supply to it. Try applying power directly to one terminal and grounding the other to test if it works.

Here is a guide to help us fix the problem

https://www.2carpros.com/articles/car-air-conditioner-not-working-or-is-weak

Please run down this guide and report back.
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Sunday, April 7th, 2013 AT 4:32 PM
Tiny
WILDRICHIE69
  • MEMBER
  • 3 POSTS
Been using trouble 12 volt tester checked all fuzes n the circuit board on manual controlled appeared to have power going to it but not working, fan, lights.
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Sunday, April 7th, 2013 AT 4:43 PM
Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
If the fan don't work, nothing is going to work. Test the fan first.
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Sunday, April 7th, 2013 AT 4:49 PM
Tiny
WILDRICHIE69
  • MEMBER
  • 3 POSTS
Thank you, disconnected the battery for a minute n when I connected it again the manual climate control worked again. All most like a cell phone that's having problems, take the battery out for a minute n put it back in. Lol
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Sunday, April 7th, 2013 AT 5:05 PM
Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
This is an indication the control panel might be on its way out.
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Sunday, April 7th, 2013 AT 5:08 PM
Tiny
J4DEPUTY
  • MEMBER
  • 1 POST
  • 2005 KIA SEDONA
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 12,000 MILES
I know I don't have a leak. But the a/c air is not getting cold. The engine is not overheating.
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Thursday, September 5th, 2019 AT 4:40 PM (Merged)
Tiny
BILLYMAC
  • MECHANIC
  • 2,204 POSTS
Hi if the air is not cold check the pressures low side should be between 30 and 40 high between 150 and 200. If the pressure is right and not cold then you have either a blend air door prob as in the heat is mixing with the a/c check and see if the line outside under the hood is cold when on if yes check the blend doors
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Thursday, September 5th, 2019 AT 4:40 PM (Merged)
Tiny
DAYCARE_98
  • MEMBER
  • 1 POST
  • 2005 KIA SEDONA
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 48,000 MILES
I took my van in because the air was cooling, then blowing hot air then cooling again. They replaced under warranty the compressor. The receipt said it was shorting out. I picked up my van and it appeared to blow cold air but it was at 7:30pm. The next day during the day, it was cool air but we had it on full blast and still sweating. I returned it to the dealer and they said the machine that pushed the freon in malfunctioned and the purge the system and refilled with freon. It is still not cooling to my satisfation. I did a reading with a air conditioning meter. I placed the thermometer end into the air vent and the coldest it got after driving 10 miles was 58 degrees. I came home and drove my parents car, did the same thing and within 5 miles the temp was already at 46 degrees. What should the temp be for a properly working system? We are bringing it back today.
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Thursday, September 5th, 2019 AT 4:40 PM (Merged)
Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
Hi daycare_98,

Thank you for the donation.

Most AC operates at about 46 degrees at the vents.

Hope you get the problem reolved soon.

Good luck.
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Thursday, September 5th, 2019 AT 4:40 PM (Merged)
Tiny
TCSKAGGS
  • MEMBER
  • 7 POSTS
  • 2005 KIA SEDONA
Air conditioning blows hot air one day it was idling running warmer than usual and then all of a sudden it blows hot air
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Thursday, September 5th, 2019 AT 4:40 PM (Merged)
Tiny
SATURNTECH9
  • MECHANIC
  • 30,869 POSTS
Does the a/c compressor turn on when you turn the a/c on?Are your electric cooling fans working under the hood?Have you ever cleaned the fins of your radiator and a/c condensor out?
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Thursday, September 5th, 2019 AT 4:40 PM (Merged)
Tiny
TCSKAGGS
  • MEMBER
  • 7 POSTS
Cooling fans are working. One of them wasnt working but found out it was just a connection issue. The compressor does not come on when I turn the a/c on. Everything is cleaned though.
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Thursday, September 5th, 2019 AT 4:40 PM (Merged)
Tiny
SATURNTECH9
  • MECHANIC
  • 30,869 POSTS
With the compressor not coming on first thing you need to check is the a/c pressures.
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Thursday, September 5th, 2019 AT 4:40 PM (Merged)
Tiny
TCSKAGGS
  • MEMBER
  • 7 POSTS
High pressure was good and the low pressure is retarded.
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Thursday, September 5th, 2019 AT 4:40 PM (Merged)
Tiny
SATURNTECH9
  • MECHANIC
  • 30,869 POSTS
If the a/c compressor is off the high and low pressures should be equal what were the pressure readings?
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Thursday, September 5th, 2019 AT 4:40 PM (Merged)
Tiny
TCSKAGGS
  • MEMBER
  • 7 POSTS
High pressure was 130 psi and the low pressure was retard
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Thursday, September 5th, 2019 AT 4:40 PM (Merged)
Tiny
2CP-ARCHIVES
  • MEMBER
  • 4,540 POSTS
  • 2005 KIA SEDONA
  • 180,000 MILES
I have a few problems all started at the same time. A/C does not blow cold air, when car is cold it makes a loud screeching sound when the defrost fan is turned up. Power steering is sometimes very hard (tough to turn steering wheel). Can any of this be related? Someone suggested the serpentine belt needed replacing? Also, I replaced my windshield recently and now the intermittent sensor doesn't work. I have the sensored wipers and have been through this before where the technician doesn't recalibrate the sensor. Is this why the intermittent setting isn't working now?
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Thursday, September 5th, 2019 AT 4:40 PM (Merged)
Tiny
SATURNTECH9
  • MECHANIC
  • 30,869 POSTS
Are these readings coming from a a/c machine that recovers and charges the a/c?
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Thursday, September 5th, 2019 AT 4:40 PM (Merged)
Tiny
DRCRANKNWRENCH
  • MECHANIC
  • 3,380 POSTS
You have several possible isssues going on. The hot A/C could be from an improper level of r-134a refrigerant. You need to have that checked by a repair shop and have the refrigerent pressure checked or just get it flushed and filled.
The loud screedhing could be the air door for the defrost not clsoing all they way and creating a small gap that squeals when air passes by. It might also be the blower motor going bad.
The power steering pump sounds like it is going bad. Check the fluid level and then grab the pulley and check for play. If there is play you need to replace the pump or if the fluid looks or smells burnt.
The intermitant snesor is generally set by a control board. You may have a problem with the control board or the multi-funtion switch for the wipers.
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Thursday, September 5th, 2019 AT 4:40 PM (Merged)
Tiny
TCSKAGGS
  • MEMBER
  • 7 POSTS
It was just an a/c gauge
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Thursday, September 5th, 2019 AT 4:40 PM (Merged)

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