I have just installed a new Dometic RM2351 fridge in my 21' Globetrotter, and fired it up this afternoon. I am getting an acrid, low level smell like plastic melting/cooking, but not burning. I have felt all adjacent surfaces, and there are no plastic parts that seem overheated. The possible exception is the internals of the 'chimney' where the boiler tube is heated. I can barely touch that on the exterior.
I have a 'spare' part, labeled as the 'flue cap' in Dometic's parts list (#54 on the page 8, Control & Burner Components). The link to the parts diagrams/lists is at http://www.gas-refrigerators.com/pdf/RM2351-parts.pdf
My assumption regarding the function of the flue cap is that it is intended to redirect/mix the hot fumes coming up the chimney with cooler surrounding air. I have installed the flue cap in a vertical position at the top of the chimney, similar in orientation to the pictures attached, but directing the hot fumes at the top of the chimney away from the fridge.
Can anyone confirm or clarify the function and installation of the flue cap, and the potential source of that smell... I certainly don't want my renovation work going up in smoke while I sleep (in my house)....
Thanks for the input!