Appliances with Documented Refrigerant Charge Data Repair Most Reliably Without Major Intervention

https://crankmaster2.gumroad.com/p/beyond-the-50-percent-threshold-lies-true-replacement-economics-for-failing-units

Refrigerant-based appliances—primarily refrigerators and air conditioning units—are easiest to repair when sealed-system specifications and rated charge data are available and intact