Irelands child wrote:
Please! Where is all that plastic and Styrofoam? I've had the cover off the OEM 15K Dometic Brisk Air to clean it and the cover off the new 100 pound Penguin 13.5K just to see what's inside - and the only 'plastic' is the cover. Would I prefer another brand? Maybe, but Carrier no longer makes them for an RV.
My 15K Dometic Brisk Air (I think 59516 model but not sure) is in fact mostly plastic and foam. Covers are all plastic and all the liners inside and out are made of cast foam. Only the frame is metal. I actually think it's a good design. The foam is an excellent insulator and the plastic/foam combination makes the unit light and strong at the same time.
To the OP, I think I would just replace the unit. I've seen them for under $500. I have no idea what it would cost to replace just the compressor but I bet it would not be cheap even with you doing all the work yourself. I think your unit is a 13.5K and I'd probably go ahead and put in a 15K for a few extra bucks.
I assume you have tested the start capacitor as they do fail often.