I'm really hoping someone can help. I've looked through several posts here but none of them are really specific enough. We just bought a new house. Don't have the budget left to replace the fridge right now.

It had been turned off for several years prior to us buying the house. Already found busted ice maker, waiting on parts. Today I finally realized that items on the fridge side aren't as cold as they should be.

The bottom of the fridge seems cooler than the top, but things up top are cool but not cold.

The display reads 36° but it definitely doesn't feel like it.

I found another post that talks about a test mode for the unit, but it doesn't really have great info. It shows pressing a combination of buttons but not which ones to press.

Can anyone guide me to a troubleshooting guide, or service manual?