Help with refridgerator repair

The refridgerator area is not keeping things cool. It is a bit cool but not what it needs to be to maintain healthy refridgeration. I looked up the schematic of the where the thermastat was located but I don’t want to replace that if that isn’t the problem. We replaced an oven/stove last year in November and I can’t afford to replace a fridge now. The freezer part works perfectly. I might need to clean the condenser coils more…but is so hard to get into the area. I will now take my vacuum cleaner and get in there. Any other ideas?

dperry:confused: