Thermostat wire color

[NYCANCamper]

I am in the process of changing out the analog thermostat to digital, something I've done before in my TT. However, while stripping a wire it pulled out from the factory connectors. I have no idea which connector it came from. I scoped inside the wall and don't see a loose wire connector.

The seven factory connectors are white to red, white to blue, white to grey, red/white to red, blue to yellow, green to green and blue to red. I can't tell where the blue wire disconnected from.

Here's some photos. Any help is appreciated.

[2naEagle]

Maybe this will help. Looks like the blue goes with the white and blue which is 12 volt negative.

[IMG][/IMG]

[IMG][/IMG]

[2naEagle]

[norty1]

When I did mine this is what I had:

Thermostat --- - Factory Wire

Yellow--------------------Red

Green--------------------Green

Grey---------------------White

Blue-------------------BIG White & Blue

Red----------------------White with thin red tracer

White--------------------White ( this is for heat)

[NYCANCamper]

Thanks everyone, you saved my upcoming Memorial Day vacation. I was able to reattach the blue wire as suggested, it's all working. There was zero slack in the wiring making the connections tough. Then I had to cram all the wiring, connectors and wire nuts back into the tiny crevice. Thanks again.