Here's more info that explains the situation. This fridge is an extra
one I use for my brewing hobby. Occasionally I need to ferment beer in
this and it should be over 40 degrees. I have an external thermostat
that I plug the fridge in to, which in turn plugs into the wall.
Apparently it's a bad idea to keep the fridge plugged into this device
for long periods of time even if it is set to keep the fridge at 40 F.
It causes problems with the fridges ability to defrost itself properly.
When I (finally) unplugged the fridge, something inside of it which had
frosted over (not the freezer) melted and water was everywhere. Good
thing it was in an unfinished basement.
Anyway, after plugging it back in directly to the wall it works fine.
Apparently I should only use the external temp controller when I really
need to adjust the refrigerators temperature to something other than
Thanks for your suggestions!
Now I need to find time to brew again.