Sub-Zero repair for built-in cold storage
Sub-Zero started in Madison, Wisconsin, in 1945, when Westye Bakke needed a steady cold spot for his son's insulin. We repair the brand's refrigerators, freezers and ice makers in houses and condos across Oahu.

Sub-Zero at a glance
Sources: Sub-Zero 75th anniversary press release; Sub-Zero residential limited warranty; CPSC 1994 recall notice
Sub-Zero lines and the prefixes that name them
The letters at the start of the model number tell you the family, and the family decides which manual, parts and reset steps apply.
| Family | Model prefixes | Earlier name | Kind of unit | What to send us |
|---|---|---|---|---|
| Classic | BI, CL | None listed | Full-size refrigerators and freezers | Model, serial and any flashing display word |
| Designer | IT, IC, ID, DET, DEC | Integrated | Full-size and drawer models | Which door or drawer has the problem |
| PRO | PRO3650, PRO4850, 648PRO | None listed | Large built-in units | Whether the fresh food or freezer side failed |
| Undercounter | UC-15I, 315I | None listed | Stand-alone ice makers | When the ice stopped and how the bin looks |
What does the plate tell a technician?
It gives the model and serial numbers, the build date, the total amp draw, and, on Sub-Zero units, the refrigerant type and charge. The plate moves from family to family. On over/under models look inside the refrigerator door near the top hinge; on side-by-sides it sits inside the freezer door. A clear phone photo of it does two jobs. It shows which warranty term the unit is still in, and it lets the right parts be checked before anyone opens a panel.
The Sub-Zero warranty, year by year
| Period or item | What is covered | Who pays the labor |
|---|---|---|
| First two years | The whole product, full coverage | Covered |
| Through year five | Sealed system, full parts and labor | Covered |
| Through year twelve | Compressor, condenser, evaporator, drier and connecting tubing, as parts | The owner |
| Stainless steel finish | Cosmetic defects for 60 days | Covered inside that window |
| Water filters, air cartridges | Spares sit outside the product warranty | The owner |
Can salt air mark Sub-Zero stainless?
Yes, and the maker says so itself. Sub-Zero's support pages say stainless resists rust without being immune, name high salinity as one condition that beats it, and admit that in coastal or tropical places some rust over time may not be preventable. Its outdoor undercounter model, the UC-24RO, goes through salt spray booth testing. Indoor kitchen units are not built or tested that way. A fridge or wine unit on an open lanai near the shore lives in a hard spot.
