AC blows warm

Tiny
GUINESS100
  • MEMBER
  • 2012 DODGE RAM
  • 5.7L
  • V8
  • 4WD
  • AUTOMATIC
  • 85,000 MILES
Hello,
My AC blows warm at all travel speeds. Compressor spins, electric condenser fan only works if jumped to 12 volts, fuses look good. Does the condenser fan circuit control the AC cooling operation? What should I check next?
Thanks for your help.
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Monday, February 1st, 2016 AT 1:36 PM

27 Replies

Tiny
WRENCHER1
  • MEMBER
Hello,

It sounds like the car is low on charge this video will help you fix the problem.

https://youtu.be/ON2dYcmXIAw

Please let us know if you need anything else to get the problem fixed.

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Monday, February 1st, 2016 AT 1:42 PM
Tiny
WILLY1997
  • MEMBER
  • 2010 DODGE RAM
  • 6.7L
  • 6 CYL
  • TURBO
  • 4WD
  • AUTOMATIC
  • 125,000 MILES
Heat blows on passenger side and rear but not driver side, just blows cold air, also makes a noise on passenger side under dash.
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Wednesday, July 1st, 2020 AT 12:03 PM (Merged)
Tiny
WRENCHER1
  • MEMBER
Do you have separate left and right temp controls?
What kind of noise are you hearing?
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Wednesday, July 1st, 2020 AT 12:03 PM (Merged)
Tiny
WILLY1997
  • MEMBER
Yes separate temp control. It's a weird clicking noise kinda loud.
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Wednesday, July 1st, 2020 AT 12:03 PM (Merged)
Tiny
WRENCHER1
  • MEMBER
It sounds like you have a stripped out blend door actuator for the driver's side. That is the electric motor that control the heat air door.

You can access it by removing the glove box.

Here is a picture

https://www.2carpros.com/images/external/150329758.jpg
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Wednesday, July 1st, 2020 AT 12:03 PM (Merged)
Tiny
WILLY1997
  • MEMBER
Thanks
I'll check it out in morning and let you know what I find.
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Wednesday, July 1st, 2020 AT 12:03 PM (Merged)
Tiny
WILLY1997
  • MEMBER
You were right. Thanks a lot. Got it fixed now.
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Wednesday, July 1st, 2020 AT 12:03 PM (Merged)
Tiny
WRENCHER1
  • MEMBER
Glad to hear it. Come back again.
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Wednesday, July 1st, 2020 AT 12:03 PM (Merged)
Tiny
FEARLESS3030
  • MEMBER
  • 2006 DODGE RAM
  • 5.7L
  • V8
  • 4WD
  • AUTOMATIC
  • 141,454 MILES
Blows cold air when driving and blows hot air when stopped. Also, I can see smoke or steam coming from vent smells bad also.
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Wednesday, July 1st, 2020 AT 12:29 PM (Merged)
Tiny
SATURNTECH9
  • MEMBER
Is it s sweet smell coming from the vents? Also have you checked to make sure your air conditioner condenser fan is working correctly?
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Wednesday, July 1st, 2020 AT 12:29 PM (Merged)
Tiny
FEARLESS3030
  • MEMBER
No, I have not honestly I would not even know where to look. Lol. It is not sweet smell more musty nasty smell. The heater blows hot on passenger side not so hot on drivers and windows fog over when you use heater instantly every time.
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Wednesday, July 1st, 2020 AT 12:29 PM (Merged)
Tiny
SATURNTECH9
  • MEMBER
Look up under dash for wet spots you could have a heater core leaks sounds like it. Also the air conditioner condenser is in front of the radiator closest to the grill. When you open the hood the electric fan is right there for the air conditioner condenser. With the air conditioner on see if that fan turns on at some point.
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Wednesday, July 1st, 2020 AT 12:29 PM (Merged)
Tiny
FEARLESS3030
  • MEMBER
Awesome! Will do thanks for the help.
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Wednesday, July 1st, 2020 AT 12:29 PM (Merged)
Tiny
NITTY75
  • MEMBER
  • 2008 DODGE RAM
  • 135,415 MILES
Air conditioner/heat will not come on. I turn the knob on the control panel to on and I get nothing. Use to tap dash and it would come on. When it came on it would blow fine then would get lower as I drive along like as if I turned it down until it would not blow at all. When it blew low I could hear a fan like it was struggling to turn. What could this problem be? Please help it is getting hot in here!
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Wednesday, July 1st, 2020 AT 12:39 PM (Merged)
Tiny
KEN
  • ADMIN
Hello,

This sounds like you have a blower motor that is going out, Here is a guide and a diagram that will help you get the problem fixed.

https://www.2carpros.com/articles/blower-fan-motor-works-on-high-speed-only

Please run this test and get back to us so we can continue helping you.

Cheers, Ken

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Wednesday, July 1st, 2020 AT 12:39 PM (Merged)
Tiny
NITTY75
  • MEMBER
Thanks for this information! Will let you know of the results. Thanks again!
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Wednesday, July 1st, 2020 AT 12:39 PM (Merged)
Tiny
BARBARA BENAVIDES
  • MEMBER
  • 2007 DODGE RAM
  • 3.7L
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 114,000 MILES
My a/c doesn't blow cold I checked it out and the low side suction line freezes up I changed out the low side line with orfice tube and I also changed out the dryer. Do you know what my problem could be?
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Wednesday, July 1st, 2020 AT 12:39 PM (Merged)
Tiny
HMAC300
  • EXPERT
It could be a temp actuator but until the a/c system was performance checked you are shooting in the dark. It proably needs to be evacuated, and recharged because there is moisture in the system.
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Wednesday, July 1st, 2020 AT 12:39 PM (Merged)
Tiny
GAILSTAFFORD1919
  • MEMBER
  • 2005 DODGE RAM
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 69,000 MILES
My air condition button in my 2005 dodge ram truck is constantly blinking and the air is blowing hot. What could be the problem? 2 mechanics have checked and can't find the problem.1 mechanic had me to replace the A/C high/low pressure gauge/switch. That didn't solve the problem.
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Wednesday, July 1st, 2020 AT 12:39 PM (Merged)
Tiny
WRENCHER1
  • MEMBER
The light is blinking because the computer shut the system down and and stored a trouble code. You will need a shop with a professional scan tool that can read the Powertrain Control Module and the A/C data input data.
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Wednesday, July 1st, 2020 AT 12:39 PM (Merged)

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