Air Conditioner

Tiny
MCAVINEE
  • MEMBER
  • 2010 CHRYSLER TOWN AND COUNTRY
  • 3.3L
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 90,000 MILES
Our air conditioner was working fine this morning and by afternoon was blowing hot air. With the hood up I cannot hear the compressor kicking on. Checked the guage and tried adding charge and the gauge is all the way to the right in red. Any ideas? Thanks
Tuesday, August 2nd, 2016 AT 5:03 PM

8 Replies

Tiny
SATURNTECH9
  • MECHANIC
  • 30,869 POSTS
You could be overcharged now because the charge could have been correct before you started adding charge. So was the radiator and air conditioner condenser fans running with the air conditioner on?
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Tuesday, August 2nd, 2016 AT 5:22 PM
Tiny
MCAVINEE
  • MEMBER
  • 69 POSTS
No, I noticed that the radiator fan was not running. I checked the fuses.
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Tuesday, August 2nd, 2016 AT 6:39 PM
Tiny
SATURNTECH9
  • MECHANIC
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Don't you have two fans one for the radiator and one for the condenser?
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Tuesday, August 2nd, 2016 AT 6:42 PM
Tiny
SATURNTECH9
  • MECHANIC
  • 30,869 POSTS
If you do not get enough air pulled through the air conditioner wont work right. Was the air conditioner working when driving high speeds before you tried adding air conditioner charge?
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Tuesday, August 2nd, 2016 AT 6:43 PM
Tiny
MCAVINEE
  • MEMBER
  • 69 POSTS
Yes, I was driving down the highway all morning and it was cool. By Afternoon it was all hot air. The fans should kick on when I turn off the engine to cool things down correct?
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Tuesday, August 2nd, 2016 AT 6:49 PM
Tiny
SATURNTECH9
  • MECHANIC
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The fans do not always stay on after the engine is turned off. It all depends on the engine coolant temperature when the engine is turned off.
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Tuesday, August 2nd, 2016 AT 7:19 PM
Tiny
MCAVINEE
  • MEMBER
  • 69 POSTS
I cannot hear the compressor kick on either. So strange, so sudden. Thanks for your information.
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Wednesday, August 3rd, 2016 AT 2:33 AM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 54,137 POSTS
Hi,

If I may, I would do a vacuum down and recharge of the system to remove any contamination. If you have excessive moisture it will cause the pressures to go way up.

Here is a guide to help you

https://www.2carpros.com/articles/re-charge-an-air-conditioner-system

Best, Ken

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Wednesday, August 10th, 2016 AT 11:30 AM

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