If this is a Frigoboat freezer with an aluminum
evaporator plate, then it will have a mechanical thermostat in a blue housing, and this is for a freezer only. You can purchase
mechanical thermostat, in a white housing, from a Frigoboat dealer, or try adjusting the range to see if you can tweak it to be a refrigerator
control. To do this, remove the mechanism from the housing, and look into the interior
of the assembly where you'll see a small torx-head screw. Turning that one way or the other will alter the range, but I can't recall
which way is which, so you have to do it by trial and error. Make sure the system is de-powered when you do this.
If you do manage to tweak your t/stat, or install a replacement one, you may have some problems with condensation
, as the evaporator plate will now be over-sized and unable to maintain a coating of frost and will simply sweat. If this proves to be a nuisance, covering some of the evaporator surface area with stick-on insulation
from a hardware
store will improve matters.
Hope this helps.