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Air conditioning not working!?

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Old Apr 13, 2006 | 06:17 PM
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Default Air conditioning not working!?

Tried to use the A/C for the first time this year since it's been on the road and it is spewing out outside temperature air. What could the cause of the air conditioning failure be?

Thanks,

Nick
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Old Apr 13, 2006 | 07:34 PM
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Low R134a ?
When you push the A/c button does the green light light up and stay on ? or doe sit flash?

Have you tried to pull any codes and determine if there is a current one for the HVAC system?

Rich
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Old Apr 13, 2006 | 07:38 PM
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Originally Posted by rws.1
Low R134a ?
When you push the A/c button does the green light light up and stay on ? or doe sit flash?

Have you tried to pull any codes and determine if there is a current one for the HVAC system?

Rich
No, no codes at all. Where is this green light at?
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Old Apr 13, 2006 | 08:20 PM
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Nikolai, I have the dual electronic unit. On mine it is the second botton from the left marked A/C with a snowflake on it. In the center of the snowflake is a green diode that normally is lit when the A/C is on....
IF it flashes the R134a is low.. IF it is not on it is usually an electical issue... try the fuse first
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Old Apr 13, 2006 | 08:34 PM
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Originally Posted by rws.1
Nikolai, I have the dual electronic unit. On mine it is the second botton from the left marked A/C with a snowflake on it. In the center of the snowflake is a green diode that normally is lit when the A/C is on....
IF it flashes the R134a is low.. IF it is not on it is usually an electical issue... try the fuse first
How do you recharge the R134a?
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Old Apr 14, 2006 | 02:12 AM
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Originally Posted by nikolai
Tried to use the A/C for the first time this year since it's been on the road and it is spewing out outside temperature air. What could the cause of the air conditioning failure be?

Thanks,

Nick
Before you recharge...check to see that the A/C belt is doing its job. Is the compressor pulley turning properly? Can you hear the A/C clutch engage/disengage as it cycles? Is the A/C condensor fowled with trash?

I will try to do many repairs to my C5, but messing with the innards of the A/C system is one I leave for the dealer, or other competent tech.

HTH
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