Check the ice cream in your freezer to see if it's stiff. If it's not
stiff, it could be that the fridge cold control is malfunctioning, and
it's not keeping the fridge as cold as it should be.
Every old fridge will smell if you unplug it and let it warm up. I
really don't know if that's because of food that has been spilled in the
fridge that got into places where it couldn't be cleaned up, or simply
because of frost that forms in the fridge walls when it's operating and
then supports the growth of mildew when it melts.
If this fridge is operating and it's stinking, then we're in uncharted
territory because I've never come across that before.
If the fridge is shut off and it's stinking, the best deodorant I know
of for smelly unplugged fridges is a product called "Ozium" which you
can buy at any appliance parts store. You just open the fridge and
freezer doors and spray a shot of Ozium into each, and then close the
Other than that, my only suggestion is to take everything out of the
fridge, put on some rubber gloves and clean the entire interior of the
fridge with bleach straight out of the jug. Wear old clothes when doing
this kind of work.
I would also take the cover in the freezer compartment off and see if
there's been any food spilled so that it's sitting on the evaporator pan
under the evaporator coil. If so, clean that up.
Also, see if you can remove any air vents either on the freezer floor or
fresh food compartment ceiling and see if there's any spilled food in
the section between the fresh food compartment and freezer.
Other than that, then I think the only other recourse would to be turn
the fridge cold control to keep the fridge colder.