427R Wine Cooler Sealed System Rebuild

When we started out in this business we did what all the other companies do and avoided the most problematic of the Sub-zero refrigerator models. Why get into servicing the wine coolers? Tens of different size screws, overheating issues and brittleness in the mechanical shelf, copper evaporators with no room to solder. These machines were a nightmare, especially the under the counter units that constantly failed. The best way to go about repairing these units was to just give them a gas charge and run away hoping it wouldn't leak out all of the gas. Fast forward fifteen years and the old wine coolers from the early 2000s are still here, often built into a bar or kitchen, with no feasible replacement model available to fit the wood panels that were retrofitted to their fronts some 20 years ago. We only service Sub-Zero units, so I guess it was time to master them, really dive in deep and present the customer with the option to fully rebuild them.
Detailed instructions below!
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Thank you for posting these videos.
I try to fix my own sub-zero refrigerators and find this channel extremely helpful and informative.
I have 3 fridges and a wine chiller that has needed service at one or another.
This channel has saved me many times.
Thank you