Q: How level does my RV fridge have to be?
A: Based on specifications from Norcold Training Manual,
Off-Level Operating Limits
Side-to-Side: 3 degrees maximum tilt off from level.
Front-to-Back: 6 degrees maximum tilt off from level.
Most people have a level(or can get a free app) on their phone, I use this: https://www.amazon.com/gp/product/B07QVKZNRV