At the back of the refer, down at the bottom, there are two screws, one on each side that are screwed down into the wood base.
Side Note:.....Once you get the refer out, most builders used a 100 staples to install the wood floor for the Norcold. Another poster used a small jack under the floor to lift it up and break it lose. I used this technique on my Monaco and it worked great.
Don & Mary
2019 Newmar Dutch Star 4018 (Freightliner)
2019 Ford Raptor