HVAC Problem
Thread Starter
Drifting
Joined: Oct 1999
Posts: 1,669
Likes: 98
From: Jacksonville FL
HVAC Problem
I have a '99 FRC w/ dual zone climate control and cannot figure out why I can't get the system to stay charged.
I have had it flushed and charged 3 times over the past 12 months and each time, the A/C starts blowing hot air on the driver's side by 3 weeks.
I've checked for leaks and don't see any signs.
Worst of all, when I hook up a pressure gauge, the system is fully charged, but the compressor won't turn on anymore. When I press the A/C button, it blinks three times and then shuts off.
I do not get any codes.
I have tried disconnecting the battery and replacing fuses.
I can't find any help using the search function.
What gives?
I have had it flushed and charged 3 times over the past 12 months and each time, the A/C starts blowing hot air on the driver's side by 3 weeks.
I've checked for leaks and don't see any signs.
Worst of all, when I hook up a pressure gauge, the system is fully charged, but the compressor won't turn on anymore. When I press the A/C button, it blinks three times and then shuts off.
I do not get any codes.
I have tried disconnecting the battery and replacing fuses.
I can't find any help using the search function.
What gives?
Race Director
Joined: Apr 2001
Posts: 19,329
Likes: 15
From: Saint Augustine, FL
Mid-TN Events Coordinator
St. Jude Donor '03-'04-'05-'06-'07-'08-'09-'10-'11-'12-'13-'14-'15-'16
I noticed from your profile you are in SC. If the outside temp is below 40 degrees, the compressor won't come on.
Also, if it shows charged with the compressor not running, it likely could be over filled. The level should be checked with the compressor running. Being overcharged will also cause the compressor not to come on.
PS - You have a nice fleet of vehicles there.
Also, if it shows charged with the compressor not running, it likely could be over filled. The level should be checked with the compressor running. Being overcharged will also cause the compressor not to come on.
PS - You have a nice fleet of vehicles there.
Thread Starter
Drifting
Joined: Oct 1999
Posts: 1,669
Likes: 98
From: Jacksonville FL
Originally Posted by JR_VETTE
I noticed from your profile you are in SC. If the outside temp is below 40 degrees, the compressor won't come on.
Also, if it shows charged with the compressor not running, it likely could be over filled. The level should be checked with the compressor running. Being overcharged will also cause the compressor not to come on.
PS - You have a nice fleet of vehicles there.
Also, if it shows charged with the compressor not running, it likely could be over filled. The level should be checked with the compressor running. Being overcharged will also cause the compressor not to come on.
PS - You have a nice fleet of vehicles there.
----
Mike
Melting Slicks
Joined: Aug 2006
Posts: 2,475
Likes: 97
From: KY/TN
St. Jude Donor '13-'14-'15-'16
Have someone sit inside the car and turn on and off the AC while you listen and monitor the AC compressor. Do you hear the clicking noise of the compressor clutch . If yes, then check to see if the compressor is turning. If no, then check for voltage at the clutch. It is possible that the clutch assembly is going bad.
Thread Starter
Drifting
Joined: Oct 1999
Posts: 1,669
Likes: 98
From: Jacksonville FL
Originally Posted by erick_e
Have someone sit inside the car and turn on and off the AC while you listen and monitor the AC compressor. Do you hear the clicking noise of the compressor clutch . If yes, then check to see if the compressor is turning. If no, then check for voltage at the clutch. It is possible that the clutch assembly is going bad.
----
Mike
Instructor
Joined: Feb 2006
Posts: 227
Likes: 2
From: Livingston TN
it's the switch on the suction line(low pressure) close to your coolant tank, pull plug off and stick a jumper wire between the two slots in the plug, this will engage you clutch providing if what eric-e is saying you have voltage at the plug on the front of the compressor, hope this helps
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Thread Starter
Drifting
Joined: Oct 1999
Posts: 1,669
Likes: 98
From: Jacksonville FL
Originally Posted by CARRJET
it's the switch on the suction line(low pressure) close to your coolant tank, pull plug off and stick a jumper wire between the two slots in the plug, this will engage you clutch providing if what eric-e is saying you have voltage at the plug on the front of the compressor, hope this helps
----
Mike
Thread Starter
Drifting
Joined: Oct 1999
Posts: 1,669
Likes: 98
From: Jacksonville FL
Originally Posted by CARRJET
it's the switch on the suction line(low pressure) close to your coolant tank, pull plug off and stick a jumper wire between the two slots in the plug, this will engage you clutch providing if what eric-e is saying you have voltage at the plug on the front of the compressor, hope this helps
Thanks.
----
Mike
