C5 Drivers side air temp control
Thread Starter
7th Gear
Joined: Aug 2019
Posts: 7
Likes: 0
C5 Drivers side air temp control
I started having issues when my 2000 C5 cabin fan stopped working. When I grounded the control wire from the control head the fan works on full speed. That problem is temporarily solved with a switch. Then I noticed that the drivers side air is considerably warmer than the passenger side when temps are set to lowest setting on auto. I checked the HVAC 99 codes and found that the right side was showing out of range and open feedback. I ordered two new temp door actuators and installed them today. The codes now are gone but the drivers side is still warmer when on the lowest setting. I'm pretty sure that the reason the fan stopped working has to do with a problem on one of the boards in the control head and now I'm thinking there could be multiple issues with control head not adjusting the temp low enough. The display still works and all of the other zone controls work. Unless someone has a better idea I guess Ill just dig deep and buy a new control head and hope that take care of it. Any advice would be awesome.
Thanks
Thanks
Melting Slicks
Joined: Jul 2004
Posts: 3,294
Likes: 480
From: Brea CA
Check your Freon level. Have a shop put a set of gauges on it to verify that the Freon charge is correct.
The HVAC controllers rarely go out other that the display and lights.
As to your fan issue, the speed controller mounted next to is probably has failed. I would replace that before replacing the HVAC controller.
Gary
The HVAC controllers rarely go out other that the display and lights.
As to your fan issue, the speed controller mounted next to is probably has failed. I would replace that before replacing the HVAC controller.
Gary
Thread Starter
7th Gear
Joined: Aug 2019
Posts: 7
Likes: 0
Check your Freon level. Have a shop put a set of gauges on it to verify that the Freon charge is correct.
The HVAC controllers rarely go out other that the display and lights.
As to your fan issue, the speed controller mounted next to is probably has failed. I would replace that before replacing the HVAC controller.
Gary
The HVAC controllers rarely go out other that the display and lights.
As to your fan issue, the speed controller mounted next to is probably has failed. I would replace that before replacing the HVAC controller.
Gary
Rusty
Thread Starter
7th Gear
Joined: Aug 2019
Posts: 7
Likes: 0
Check your Freon level. Have a shop put a set of gauges on it to verify that the Freon charge is correct.
The HVAC controllers rarely go out other that the display and lights.
As to your fan issue, the speed controller mounted next to is probably has failed. I would replace that before replacing the HVAC controller.
Gary
The HVAC controllers rarely go out other that the display and lights.
As to your fan issue, the speed controller mounted next to is probably has failed. I would replace that before replacing the HVAC controller.
Gary
Rusty
