There are no condensers in the freezer section. Actually, there is no
condenser in the refrigerator section, either.

I've been fixing refrigerators for several years, and never seen a
condenser freeze. I've seen em dirty, I've seen em hot. But never
frozen.


Ok, maybe I need a bit of a slap for incorrect term. Evaporator fan
perhaps. what ever it is called it moves air on the equivalent of the
A/C coil in a furnace. This set-up is; large compressor on a sliding
tray plumbed to a large coil (radiator?) above the freezer compartment,
cooling the entire box by moving air with the fan in question, freezer
section first, the migrating through a thermostat controlled vent into
the frig compartment. I've had frost free units that the fan was
running the entire time they were plugged in, not so good for open
containers of food, as it dried them out, but never a little bit of
frost, let alone ice. What I propose is to add a switch to the common
wire to run it constantly when needed. The circuit is 90% there, so
some model of the unit must have made some use of it.