JB....I sand just a little where the rust is then use appliance spray paint.
This article will help: https://homeguides.sfgate.com/rid-rust-home-appliances-74963.html
I called the local appliance repair subzero wolf repair and they recommended me to buy their cleaning agent and gave some useful recommendations
Usually chemistry takes almost all rust and you just have to wipe. Be careful not to remove all paint from the appliance