Despite High Repair Costs, Sealed-System Failures Drive 35 to 40 Percent of Refrigerator Expenses
https://urgent-appliance-repair-sacramento-expert.iamarrows.com/microwave-fire-risk-escalates-after-nine-years-of-daily-kitchen-exposure
The compressor is the most expensive refrigerator component to repair or replace, with sealed-system failures running $1,200 to $2,500 depending on unit age and rated capacity