Sub-Zero Refrigerator – Sealed System Repair in Santa Ana

Sealed System Repair in Progress

This photo captures a complex sealed system repair on a built-in Sub-Zero refrigerator. As you can see, the technician has fully exposed the upper compartment to access the sealed system components, including the compressor, evaporator coil, and refrigerant lines. These parts are critical to the refrigerator’s cooling process — and when they fail, it often results in temperature issues, frost buildup, or total loss of cooling.

In this case, the unit was no longer maintaining the proper temperature, and the customer reported warm air inside the fridge compartment. After thorough diagnostics, we determined the issue was with the sealed system — likely a leak in the evaporator or a failed compressor, both of which are common in older Sub-Zero models.

Repairs like this are not DIY-friendly. They involve precise handling of refrigerants, brazing copper lines, and ensuring the system is properly vacuumed and recharged to factory specifications. Sub-Zero refrigerators are high-end machines that require brand-specific knowledge, tools, and parts. That’s why our technicians are not just certified and insured — they’re also highly trained in Sub-Zero repair.

We always come prepared with fully stocked vans and original Sub-Zero parts, allowing us to complete most major repairs on the spot. In this particular case, we removed the damaged component, installed a new factory-authorized part, pressure-tested the system, and recharged it with the correct amount of refrigerant.

Once the job was done, the unit was restored to optimal performance — quietly running, holding temperature precisely, and once again preserving food the way a Sub-Zero should.

This repair is a perfect example of the kind of high-level work we handle at D&V Appliance Repair. Our goal is not just to fix the problem, but to extend the life of your investment and restore peace of mind. Every repair is backed by a full 5-year warranty on installed parts