Cooling failure often points to dirty coils, faulty fans, low refrigerant, a bad thermostat

https://knoxsmct733.theglensecret.com/how-to-know-if-your-fridge-trouble-needs-a-professional-1

Cooling failure often points to dirty coils, faulty fans, low refrigerant, a bad thermostat, or a failing compressor—each with different repair costs.