Suburban (2399A) SF-42Q Ducted Furnace, if your Suburban SF-42Q is needing to be replaced be sure to watch this video and find out more information on where you can get one with full manufactures warranty and not buy one that is known as a scratch and dent product. Dont overpay as well. and remember it should only take a good rv technician 1 to 2 hours tops to change a Suburban (2399A) SF-42Q Ducted Furnace. Here is a link where you can buy with confidence. http://amzn.to/2f2H3Ot
How I fixed the NT16 SEQ Suburban propane furnace in my KZ Spree Escape E16RBT camping trailer.