Your choice list:
Full replacement may not be needed.. You can replace JUST the cooling unit (The "Works" as it were) and if you do that, consider an Amish Cooling unit.. Many links about the forum on those.. Most forum members who have one (I do not have one so can not say) give them high quality marks. As i said, personally I can not comment since I do not have one.
Full Replacement
Norcold
Dometic
norcold Danfoss
Dometic Danfooss
Residential
In reading the forums and posts from folks myself included, who have them not really much to recommend Norcold over Dometic over Norcold.. The OEM cooling units, that is the working part of the thing, Appears they are much the same.. Norcold does have a different way of disposing of condensation than Dometic, not sure I'd say one is better than the other though.
Danfoss compressor units (Both Norcold and Dometic offer at least one) These are all electric (12/120 volt Fridges, Door closed they draw less than 50 watts and they work very well (Works out to about 3 amps) I have an Engel chest freezer-or-fridge (Depending on T-Stat) unit next to me as I type. LOVE IT.
Residential: These are 120 volt only compressor units, Many draw 100-1000 watts I would rather avoid them as they suck way too much power.
IF I ever do a full replacement of my Dometic.. i will likely go with a Danfoss compressor type.
