A/C light blinks?
Thread Starter
Intermediate
Joined: Mar 2008
Posts: 44
Likes: 0
From: Eglin AFB FL
A/C light blinks?
When I try to turn on the A/C in the vette all that happens is the line light blinks a few times, goes back off, and the A/C never comes on. Anyone know whats up?
Burning Brakes
Joined: Sep 2007
Posts: 860
Likes: 3
I think there are a few reasons why it could do that. Check the owners manual first as I don't think all of the reasons mean problems. I think that it could do this if the system is not fully charged though - I am not sure if this condition would throw a code, but you may want to check for codes too...
Race Director
Joined: Aug 2003
Posts: 13,421
Likes: 8
From: Lake Mary Florida
Pull the codes, if your not familiar ask we can post procedures.
Was the AC very cold when operating before? My guess is it may not have been super cold and the system is probably low on 135A. I'm just guessing, we need the codes.
Was the AC very cold when operating before? My guess is it may not have been super cold and the system is probably low on 135A. I'm just guessing, we need the codes.
Last edited by Jet-Jock; Mar 20, 2009 at 08:50 PM.
Racer
Joined: Mar 2008
Posts: 333
Likes: 18
From: Maple Valley Washington
I may be waaaaay off here but mine has done that as well. How cold was it outside when you tried to turn the ac on? I remember trying to turn mine on when it was like 20 degrees outside and it would let me (I also have the dual zone climate control) But when it is warmer it lets me. Go figure.
Burning Brakes
Joined: Oct 2003
Posts: 1,106
Likes: 1
From: Foresters Falls(near Ottawa) Ont
I may be waaaaay off here but mine has done that as well. How cold was it outside when you tried to turn the ac on? I remember trying to turn mine on when it was like 20 degrees outside and it would let me (I also have the dual zone climate control) But when it is warmer it lets me. Go figure.
RonJ ...
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Race Director
Joined: Jul 2007
Posts: 18,681
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From: Reno is so close to Hell you can see Sparks , State Of Confusion
St. Jude Donor '12-'13-'14
Mine will do that if the temp outside is cold, If you read the owners manual it is in there.
A/C (Air Conditioning):
A/C (Air Conditioning):
This button turns
the air conditioning compressor off or on under most
conditions. The light on the A/C button will come on
when the compressor is operating in either the automatic
or manual mode. The air conditioning does not operate
at temperatures below approximately 35F to 40F
(2C to 4C). The light on the A/C button will flash if
pressed when air conditioning is not available. The air
conditioning cools and dehumidifies the air coming into
the vehicle. The air conditioning cannot be turned off in
defrost and defog, as it helps to remove moisture from
the vehicle. It also helps to keep the windows clear.conditions. The light on the A/C button will come on
when the compressor is operating in either the automatic
or manual mode. The air conditioning does not operate
at temperatures below approximately 35F to 40F
(2C to 4C). The light on the A/C button will flash if
pressed when air conditioning is not available. The air
conditioning cools and dehumidifies the air coming into
the vehicle. The air conditioning cannot be turned off in
defrost and defog, as it helps to remove moisture from
Tech Contributor
Joined: Dec 2003
Posts: 19,384
Likes: 87
From: Horncastle Lincolnshire, England
2023 C5 of the Year Finalist - Unmodified
What reading do you have on the outside air temperature display. Is the sensor giving a false reading making the AC think the temp is <35 degrees?
Thread Starter
Intermediate
Joined: Mar 2008
Posts: 44
Likes: 0
From: Eglin AFB FL
No it isn't very cold here, lol
Premium Supporting Vendor
Joined: Nov 2006
Posts: 30,317
Likes: 165
From: Reading PA
Here is your answer.
If you try to turn the AC on but the FAN SPEED is not on at least the 1st setting it blinks and then turns off.
It took me about 10 times in my Hummer to have this happen before I figured it out.
In other words, I was turning on the AC, but the fan speed was OFF, it would blink and then go off.
If you try to turn the AC on but the FAN SPEED is not on at least the 1st setting it blinks and then turns off.
It took me about 10 times in my Hummer to have this happen before I figured it out.
In other words, I was turning on the AC, but the fan speed was OFF, it would blink and then go off.
