I'm getting really aggravated with my Norcold 1200LRIM fridge. It's constantly going into the "no co" lockout, and when it does work, it's sort-of cold in the freezer and only lukewarm in the refriger...
I use a "fish eye", or "Bulls Eye" level, available at any RV supply. Just set it on the fridge level surface, works best, no running around looking at pasted on level indicators. BTC