Air,heater control switch question
Thread Starter
Pro
Joined: Oct 2004
Posts: 664
Likes: 0
From: nanticoke pa.
Air,heater control switch question
New to C3. Took in for air problem and the mechanic said there was no power to compresser and the fan blows hot air even when on cold and fan in off position.Switch problem?
Race Director
Joined: May 2006
Posts: 16,528
Likes: 53
From: Dayton, Ohio
The fan is designed to blow on low in the off position. If the vacuum shutoff valve on top of the heater core case is leaking or is maladjusted the heater coolant valve will allow hot coolant to flow through the heater.
There are 2 switches before the compressor to check , the low pressure switch and the thermo switch.
There are 2 switches before the compressor to check , the low pressure switch and the thermo switch.
Racer
Joined: Feb 2007
Posts: 271
Likes: 25
From: Buena Vista Colorado
vish2000 wrote:
Here's a link to a current thread in the C3 Tech/Performance section that may help:
http://forums.corvetteforum.com/c3-t...978-vette.html
...the fan blows hot air even when on cold...
http://forums.corvetteforum.com/c3-t...978-vette.html
