Re: WHirlpool ARC7050 (850170515001)
Sorry, I’m not a fridge engineer either, (but way back, I was a medical equipment service-engineer as well! 😛 -Air Shields)
As the freezer seems “too cold”-you can probably discount loss of gass(refrigerant)
you’re likely to find there’s a system of ducts,flap-valves and fan(s) to pump the cold air around.
AFAIK, the freezer has priority….and as it’s too cold, but the cooling isn’t diverted to the fridge section, the freezer must “think” it’s not cold enough.
I’d guess there is a thermistor controlling it ,rather than a thermostat. scan the dozens of posts on the otherthread on this make (can’t miss it it’s the biggest! )….then you’ll have a pretty good idea of how it’s put together and how it works!