--- title: "Sub-Zero error 2 or 3 on an undercounter wine unit: a control setup problem" description: "What 2 means on Sub-Zero error 2 or 3 on an undercounter wine unit: a control setup problems, what to check before booking, and when it is not a failure at all." url: "https://winecoolerrepair.center/error-codes/sub-zero-2/" --- # Sub-Zero error 2 or 3 on an undercounter wine unit: a control setup problem On Sub-Zero undercounter wine storage, codes 2 and 3 point at the control’s factory software setup rather than at a sensor, fan or the cooling system. ## What 2 actually means. On Sub-Zero undercounter wine storage, codes 2 and 3 point at the control’s factory software setup rather than at a sensor, fan or the cooling system. Sub-Zero’s only suggestion is a breaker reset; if the code survives that, it offers no further owner advice. Sub-Zero wine cooler display · also shown as 02, EC 02, 3, 03, EC 03 What to do when 2 shows on the wine cooler ### Kind of code Control board and display The electronics that read the sensors and switch the cooling, the fans and the lights have reported a problem with themselves or lost touch with the display. A loose ribbon cable, moisture that reached the touch strip or a brief power surge is checked before a board is condemned. Boards and displays are usually specific to one model, so the number on the label matters here more than anywhere. ### Usually leads to Wine cooler control board and display repair Repairing the electronic control and the touch display that run a wine cooler, from a blank screen or a code to keys that will not respond or a cabinet that will not start. ### Shows up as Wine Cooler Error Code A wine cooler error code appears as letters and digits on the display, a flashing temperature, dashes where a number should be or a blinking symbol, sometimes with an alarm tone and sometimes while the cabinet stays perfectly cool. ### Make Sub-Zero Sub-Zero wine coolers repaired in place, with the collection kept closed and dark until the visit. ### Source Sub-Zero answer: Undercounter Wine Storage error code 2 Undercounter wine storage (UW-24 and related models) that show a single number on the display. ## Before you book, in this order. Each step comes from Sub-Zero's own guidance for 2 on its wine coolers. Follow it to the end: the last card says whether this is a visit. 01 Switch the breaker off for 30 seconds, then back on, and retest the unit. 02 Note whether the code was 2 or 3 and whether it returned after the reset. 03 If it comes back, book a visit; the control needs to be checked or set up again. ### Still there? It usually turns into [wine cooler control board and display repair](https://winecoolerrepair.center/services/wine-cooler-control-board-and-display-repair/). Book with the code and the model number. ### What not to do Codes 2 and 3 do not report a temperature problem, even if they appear at the same time as one. They are not the two-digit EC sensor codes such as EC05. ## What you may notice with it. The wine cooler problems 2 tends to arrive with. Answer these at the wine cooler before anyone is booked. [All problems](https://winecoolerrepair.center/problems/) Before you call ### [Wine Cooler Error Code](https://winecoolerrepair.center/problems/wine-cooler-error-code/) [All 7 causes, cheapest first](https://winecoolerrepair.center/problems/wine-cooler-error-code/) It also comes with - [**Wine Cooler Display Not Working**](https://winecoolerrepair.center/problems/wine-cooler-display-not-working/) - [**Wine Cooler Not Turning On**](https://winecoolerrepair.center/problems/wine-cooler-not-turning-on/) Problem ### Wine Cooler Error Code 7 causes, cheapest first Where 2 usually leads ## Wine cooler control board and display repair. **Main control board, display board or door switch · moderate to highest.** Book a visit [What the job involves](https://winecoolerrepair.center/services/wine-cooler-control-board-and-display-repair/) ## Sub-Zero wine coolers. Sub-Zero wine coolers repaired in place, with the collection kept closed and dark until the visit. [Sub-Zero wine cooler repair](https://winecoolerrepair.center/brands/sub-zero/) More Sub-Zero codes [EC05](https://winecoolerrepair.center/error-codes/sub-zero-ec05/) [EC06](https://winecoolerrepair.center/error-codes/sub-zero-ec06/) [EC07](https://winecoolerrepair.center/error-codes/sub-zero-ec07/) [EC08](https://winecoolerrepair.center/error-codes/sub-zero-ec08/) [EC10](https://winecoolerrepair.center/error-codes/sub-zero-ec10/) [EC11](https://winecoolerrepair.center/error-codes/sub-zero-ec11/) [EC12](https://winecoolerrepair.center/error-codes/sub-zero-ec12/) [EC13](https://winecoolerrepair.center/error-codes/sub-zero-ec13/) [EC15](https://winecoolerrepair.center/error-codes/sub-zero-ec15/) [40 1 09](https://winecoolerrepair.center/error-codes/sub-zero-40-1-09/) [40 1 40](https://winecoolerrepair.center/error-codes/sub-zero-40-1-40/) [95 1 00](https://winecoolerrepair.center/error-codes/sub-zero-95-1-00/) [All 15 Sub-Zero codes](https://winecoolerrepair.center/error-codes/#codes-sub-zero) Control board and display on other makes [ASKO E0](https://winecoolerrepair.center/error-codes/asko-e0/) [Bertazzoni Error Code...](https://winecoolerrepair.center/error-codes/bertazzoni-error-code/) [Dacor Filter indicator blinking red](https://winecoolerrepair.center/error-codes/dacor-filter-blinking-red/) [Fisher & Paykel F1](https://winecoolerrepair.center/error-codes/fisher-and-paykel-f1/) [Fulgor Milano Error Code...](https://winecoolerrepair.center/error-codes/fulgor-milano-error-code/) [Gaggenau Self-test result](https://winecoolerrepair.center/error-codes/gaggenau-self-test-result/) [Liebherr Error](https://winecoolerrepair.center/error-codes/liebherr-error/) [Miele F1 to F3, S1 to S9](https://winecoolerrepair.center/error-codes/miele-f1-f3-s1-s9/) [All 23 codes of this kind](https://winecoolerrepair.center/error-codes/#family-board) Sub-Zero builds this ### Undercounter wine cooler A wine cooler about the height of a base cabinet, built in under the counter of a kitchen, a bar or a butler's pantry, with a glass door, sliding racks and a vented toe grille at the floor. Sub-Zero builds this ### Wine column A full-height built-in wine cabinet, 18 to 30 inches wide, set flush into tall cabinetry or paired with a matching column, with a glass or panel door and dozens to well over a hundred bottles inside. Sub-Zero builds this ### Dual-zone wine cooler A wine cooler with two separately set compartments, upper and lower or side by side, so reds and whites or a storage zone and a serving zone each keep their own temperature. ## In Sub-Zero's own words > Factory Programming Error [Sub-Zero answer: Undercounter Wine Storage error code 2](https://www.subzero-wolf.com/assistance/answers/sub-zero/undercounter-wine-storage/undercounter-wine-storage-error-code-2) [Sub-Zero answer: Undercounter Wine Storage error code 2](https://www.subzero-wolf.com/assistance/answers/sub-zero/undercounter-wine-storage/undercounter-wine-storage-error-code-2) [Sub-Zero answer: Undercounter Wine Storage error code 3](https://www.subzero-wolf.com/assistance/answers/sub-zero/undercounter-wine-storage/undercounter-wine-storage-error-code-3) Every code on this site is taken from the manufacturer's documentation, never from a forum or a parts listing. Undercounter wine storage (UW-24 and related models) that show a single number on the display. ## Sub-Zero 2 wine cooler repair, where we come out. The same visit in every metro below: the code, the model number, and a diagnosis before any part is ordered. 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Switch the breaker off for 30 seconds, then back on, and retest the unit. If it comes back, it needs a visit. ### Is error 2 on my Sub-Zero undercounter the same as EC 02? Yes. Sub-Zero’s own page lists the display as showing 02 or EC 02 for the same setup problem. ### Can a power surge cause error 2 or 3? Sub-Zero does not name a cause beyond the factory setup error. A reset rules out a one-time glitch; a code that returns needs the control looked at. ### Will the unit keep cooling with error 3? Sub-Zero does not say. Check the temperature with a thermometer, and treat the unit as unreliable until the control is checked. --- **[Read on the site: Sub-Zero error 2 or 3 on an undercounter wine unit: a control setup problem](https://winecoolerrepair.center/error-codes/sub-zero-2/)** **[Book a visit with WineCoolerRepair.center](https://winecoolerrepair.center/schedule/)**