Hello, looking for some repair advice. I'm having issues with the fridge side not staying cold enough. I've narrowed it down to the compressor start relay, but looking at the parts diagram, I'm seeing two options:

Compressor Start&Relay WP2304885
or
Relay&Overload combination WPW10189190

I'm confused and not sure which I need? Or maybe I'm reading the parts diagram wrong?

Any experts able to help?

Thanks in advance.