Air conditioner not working

Tiny
ZACKMAN
  • MEMBER
4 things come to mind.

1. AC compressor relay
2. AC refrigerant temperature switch
3. Dual pressure switch
4. Compressor ECU pin voltage.
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Tuesday, August 6th, 2019 AT 2:52 PM (Merged)
Tiny
DRBUZZ0
  • MEMBER
I am sure you are right. I have experience on the electrical side of things, and I was really hoping it would turn out to be a problem with the control interface or a relay somewhere. If it were that, I think I could fix it, but it looks now like it is likely with the A/C system itself.

I am severely underemployed at the moment, so I am not sure that seeing a pro on this will be an option. I may have to wait until spring.

At the moment, if I cannot fix it, it is not getting fixed.

Sorry, that is just the long and short of the economic situation I find myself in.
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Tuesday, August 6th, 2019 AT 2:52 PM (Merged)
Tiny
WRENCHER1
  • MEMBER
If you really understand the electrical, you should at least be able to determine what is preventing it from engaging. I gave you all the diagrams that you need.
Just do not mess with the gas system without help and do not go applying power to something unless you really know what your doing. Those relays are controlled by grounding quad drivers in the PCM and if you mistakenly pump power into them, you will be buying a PCM.
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Tuesday, August 6th, 2019 AT 2:52 PM (Merged)
Tiny
DRBUZZ0
  • MEMBER
The problem is that the compressor relay is not getting any power on the common pin. When I turn on the air conditioning, the relay coil is energized and the relay closes (as it should). The no pin connects to the common pin.

The common pin (point 64 in the second diagram) is out. I assume it should be at +12, but it is not.

The obvious problem would be that the fuse labeled 12 is blown. However, as far as I can tell, all the fuses in the PDC are good, unless there is a fuse hidden somewhere.
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Tuesday, August 6th, 2019 AT 2:52 PM (Merged)
Tiny
WRENCHER1
  • MEMBER


https://www.2carpros.com/forum/automotive_pictures/561653_Fuses_01_Sebring_1.jpg

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Tuesday, August 6th, 2019 AT 2:52 PM (Merged)
Tiny
DRBUZZ0
  • MEMBER
Well darn! I would have not thought to look at that fuse because it is labeled as being for the radiator fan, I guess it is for both. On closes inspection, the fuse is fine, but when I removed it, the contact points had some corrosion on them.

A quick brush-up with some contact cleaner and reseat the fuse and the air conditioning now kicks on and I can ride cool.

Thanks a million! I thought it was an electrical problem. I did not expect it to be such a simple one.
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Tuesday, August 6th, 2019 AT 2:52 PM (Merged)
Tiny
PETESKI60
  • MEMBER
  • 2001 CHRYSLER SEBRING
  • 8,000 MILES
High pressure keeps climbing low side
clutch wont engage
jumped term 30+87 on a/c relay
clutch engaged blowing cold air
high side gauge starts to climb
and fluctuate
low side starts climbing also
last compressor did same
till it safety high pressure blow
put on another after evacuating
vaccumed 3/4 hr
same problems
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Tuesday, August 6th, 2019 AT 2:52 PM (Merged)
Tiny
WRENCHER1
  • MEMBER
Glad to hear you got it resolved. Feedback is appreciated.
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Tuesday, August 6th, 2019 AT 2:52 PM (Merged)
Tiny
ASEMASTER6371
  • EXPERT
Make sure the cooling fans operates.

Fluctuating high side usually indicates bad reed valves in the compressor.

Was the compressor new or used? Did you change the dryer? Did you change the H valve?

Roy
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Tuesday, August 6th, 2019 AT 2:52 PM (Merged)
Tiny
PETESKI60
  • MEMBER
Hi roy
it was a used a/c comp I installed
and I did not change dryer
and valve
the fans did come on when
i bypassed a/c relay
i, ll change those 2 parts with
new ones
and get back too you
thx roy
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Tuesday, August 6th, 2019 AT 2:52 PM (Merged)
Tiny
ASEMASTER6371
  • EXPERT
Good luck. Make sure you install the exact amount of freon

Roy
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Tuesday, August 6th, 2019 AT 2:52 PM (Merged)
Tiny
1967DALE
  • MEMBER
  • 2001 CHRYSLER SEBRING
  • 6 CYL
  • FWD
  • MANUAL
  • 67,431 MILES
The drivers side gets water under the mats in the front and back. We thought it might be from the rain or washing the car. Have tried running water on the car to check for leaks from windows and sun roof but nothing. What seems to happen is when you run the air for awhile it starts to get damp under the mats and if not paying attention to it you can get a puddle, which has happened. Does anyone have a idea what might be plugged up, where to look or what else we might try? All information would be appreciated.
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Tuesday, August 6th, 2019 AT 2:52 PM (Merged)
Tiny
ZACKMAN
  • MEMBER
Check your AC drain. It may be plugged up. It should be behind and under the dash. Check from under the car. You should see a small drain tube.
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Tuesday, August 6th, 2019 AT 2:52 PM (Merged)
Tiny
NURSEDONNA
  • MEMBER
  • 2001 CHRYSLER SEBRING
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 81,450 MILES
My a/c works fine and blows nice cold air - MOST of the time. But suddenly it will begin blowing warm air. It will do that for awhile then go back to cold air. Freon is fine. Any ideas?
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Tuesday, August 6th, 2019 AT 2:52 PM (Merged)
Tiny
RACEFAN966
  • EXPERT
I would check the blend door motor. If this has Automatic A/C then I would also look at the climite control system temp sensor and such.
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Tuesday, August 6th, 2019 AT 2:52 PM (Merged)
Tiny
GENE ORTON
  • MEMBER
  • 2000 CHRYSLER SEBRING
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 80,000 MILES
Heater does not blow hot air
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Tuesday, August 6th, 2019 AT 2:52 PM (Merged)
Tiny
JDL
  • EXPERT
Does the engine reach normal operating temp? Are the heater hoses hot?
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Tuesday, August 6th, 2019 AT 2:53 PM (Merged)
Tiny
GENE ORTON
  • MEMBER
Yes, the vehicle reaches normal operating temp. But it blows out luke warm air.
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Tuesday, August 6th, 2019 AT 2:53 PM (Merged)
Tiny
JDL
  • EXPERT
Are the heater hoses hot? One possibility is a heater core restriction.
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Tuesday, August 6th, 2019 AT 2:53 PM (Merged)

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