Post by relliott on Aug 11, 2023 13:47:35 GMT -5
Recently, we noticed that the aft air conditioner on our 2019 DG 356rlt was not blowing cold air.
The fan works fine but the compressor is not coming on.
I've done some troubleshooting and have validated that the compressor is good, and the start and run capacitors are good.
I have also validated that there is not power getting to the compressor.
After some more checking, I have discovered that the yellow wire going to the AC control panel has no power, when it it should have 12v DC.
I have found the other end of this yellow wire down in the front pass through on the ceiling where it comes out of one of the little module boxes. When I select the air AC to come on, I hear a little "click" from the module, and I do have 12v DC on the yellow wire to the inop AC.
So, It looks to me, like I have a break in that yellow wire somewhere between the fwd pass through ceiling and the aft AC unit on the roof.
I have no idea how this cable is routed, or how I would go about figuring out how to find and fix the issue.
I have no idea how this cable is routed, or how I would go about figuring out how to find and fix the issue.
I'm going to rout an external wire of my own from the pass through up to the connection on the a/c control panel to verify that the compressor comes on, but if/when that works, does anyone have any thoughts of how to trace this wire and find where the issue is?
I'm going to pull the aft pass through wall today, since the routing goes that direction, but after that I'm stumped. We are leaving on Monday for 3 weeks on the Oregon and Washington coasts, so I can probably get by without the 2nd ac working, but I'll need to fix this eventually.
Thanks for any Help, Rick
