Replacement climate control unit problems

[bcbickers]

Good day Everyone,

The lights are out on my stock climate control unit, and the knobs are jumpy, so I need a new one. I couldn't find an OEM part (GM part number 10367042), so I bought a unit on eBay. It is listed as an improved design with p/n 599-211XD. Graphics font doesn't quite match, but I need a climate control so...YOLO. After install, I ran into a couple of problems: the automatic function doesn't work and the blower motor is really, really low. This affects both the front and rear A/C units. The only way I could get things to sort of work correctly is to set the fan on full and temp down to 60*. When I put the old one back in, everything went back to normal. Any ideas? Did I get a bad unit or perhaps a cheap knock-off?

 

[bubbz22]

That P/N should be the Dorman replacement unit. I need to replace mine as well(lights out and buttons rubbed off) and was looking at the Dorman. I saw a Tech Note on the Dorman site about dip switches on the back. Does yours have them and do you have them set correctly?

https://static.dormanproducts.com/document/599-211xd_tech-note_v3.pdf

 

[Fless]

If you still have your original climate control unit, would you be interested in sending it to me to see if I could fix the lights and clean the controls? Just wanted to play around with one to see what can be done. I've replaced the lights in mine and cleaned the controls and it works great.

What did you do to your NBS GMT800 Tahoe/Yukon Today?

Why not buy a used one? 15-20 yr old plastic likely to break

www.tahoeyukonforum.com