Help with Noisy Dometic A/C Units

[gadget]

Hello,

I have a 2004 Newmar Dutch Star. I had 2 new Dometic Penguin 15k units installed and they are way too noisy. I did bring it to a different authorized Dometic dealer to check it out...they did agree that they were making too much noise. Dometic told them that they would change them out but they will still be the same...that it is that way since they had to change from the older freon to the newer gas and compressor. They are new and I do not want to mess around on the roof more than I have to.

Does anyone know of this problem? They are new and still have 3 year warranty, and just to change new for new if they would be the same...oh well

hope some of you are aware of this...

Thank you.