Im looking for a HVAC/R guy than help find and repair a coolant leak. Daiquiri machine

I have a margarita machine at home. There is a small leak that’s needs repair. The big service companies don’t want to take the time to fix the problem. They just want to charge the machine and send me on my way. I spoke with the manufacturer’s service manager and was told how to fix the problem but I need someone with experience to help. Any recommendations in Baton Rouge area?

I pulled a lot of the foam off the coil where there was a big buildup of oil residue that set off the sniffer tool. The leak seems to be in an area that is accessible without taking the evaporator assembly out. That was the complaint of the service companies, they didn’t want to mess around with the coils because it was hard to get too and enclosed with foam.