RP wrote:

It won't even cycle on in sub-freezing weather since the stat is set
somewhere between 36 to 42 deg...

It might, with an old refrigerator thermostat in the freezer and a Thermocube
in the fridge compartment that light a 100 W bulb in the fridge if the freezer
rises to 20 F (to keep frozen food frozen) or the fridge falls to 35 (to avoid
freezing the fridge contents.) Will this hurt the compressor?

Nick

http://www.countrysupply.com/products/sku-BEW19.html