--- title: "Sub-Zero EC06: the upper evaporator sensor is not reading" description: "What EC06 means on Sub-Zero EC06: the upper evaporator sensor is not readings, what to check before booking, and when it is not a failure at all." url: "https://winecoolerrepair.center/error-codes/sub-zero-ec06/" --- # Sub-Zero EC06: the upper evaporator sensor is not reading EC06 names the upper evaporator thermistor. ## What EC06 actually means. EC06 names the upper evaporator thermistor. That probe sits on the cooling coil rather than in the air, and the control uses it to judge how the coil is doing, including when to let frost melt off. Sub-Zero triggers the code on an open or short lasting 10 seconds or more, or on repeated erratic readings. Sub-Zero wine cooler display · also shown as EC 06, EC6 What to do when EC06 shows on the wine cooler ### Kind of code Temperature sensors The control has lost a believable reading from one of its thermistors: the probe in a zone, the one on the cold plate or coil, or on some models the one watching the room. With no trustworthy number, the cabinet either chills the bottles far below cellar temperature or lets a zone drift warm. A sensor sitting in frost, pinched behind a rack or unplugged during a move is ruled out before a new one is ordered. ### Usually leads to Wine cooler thermostat and sensor repair Testing and replacing the thermostat or the temperature sensors that tell a wine cooler when to cool, when the cabinet runs too cold, too warm or back and forth. ### 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 (UW) error code EC 06 Undercounter Wine (UW) models and Classic (formerly Built-In, BW) wine storage, which show two-digit EC codes. Designer wine columns and Designer undercounter units report the same kind of problem with three-part codes instead. ## Before you book, in this order. Each step comes from Sub-Zero's own guidance for EC06 on its wine coolers. Follow it to the end: the last card says whether this is a visit. 01 Look at the back wall of the upper section for frost or ice; a coil that is not clearing itself is a sign this probe matters right now. 02 Reset the breaker for 30 seconds and see whether EC06 comes back. 03 If it returns, or ice is building, book a visit and avoid chipping at any ice on the coil. ### Still there? It usually turns into [wine cooler thermostat and sensor repair](https://winecoolerrepair.center/services/wine-cooler-thermostat-and-sensor-repair/). Book with the code and the model number. ### What not to do EC06 is not about the air temperature the display shows, which comes from a different probe. A problem with the air probe in the upper section shows as EC05. ## What you may notice with it. The wine cooler problems EC06 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 - [**Frost or Ice on the Back Wall of a Wine Cooler**](https://winecoolerrepair.center/problems/frost-or-ice-on-the-back-wall/) - [**Wine Cooler Temperature Swings**](https://winecoolerrepair.center/problems/wine-cooler-temperature-swings/) - [**One Zone Warm in a Dual-Zone Wine Cooler**](https://winecoolerrepair.center/problems/one-zone-warm-in-a-dual-zone/) Problem ### Wine Cooler Error Code 7 causes, cheapest first Where EC06 usually leads ## Wine cooler thermostat and sensor repair. **Thermostat or zone temperature sensor · low to moderate.** Book a visit [What the job involves](https://winecoolerrepair.center/services/wine-cooler-thermostat-and-sensor-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/) [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/) [2](https://winecoolerrepair.center/error-codes/sub-zero-2/) [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) Temperature sensors on other makes [ASKO H1](https://winecoolerrepair.center/error-codes/asko-h1/) [Fisher & Paykel F3](https://winecoolerrepair.center/error-codes/fisher-and-paykel-f3/) [Marvel Eu](https://winecoolerrepair.center/error-codes/marvel-eu/) [Perlick P1F](https://winecoolerrepair.center/error-codes/perlick-p1f/) [U-Line Zone T Open](https://winecoolerrepair.center/error-codes/u-line-zone-t-open/) [Vinotemp E1](https://winecoolerrepair.center/error-codes/vinotemp-e1/) [All 17 codes of this kind](https://winecoolerrepair.center/error-codes/#family-sensor) 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 > Upper evaporator thermistor read open or shorted for 10 or more seconds, or repeatedly read erratic temperatures [Sub-Zero answer: Undercounter Wine (UW) error code EC 06](https://www.subzero-wolf.com/assistance/answers/sub-zero/undercounter-wine-storage/undercounter-wine-uw-storage-series-error-code-ec-06) [Sub-Zero answer: Classic wine storage (BW) error code EC 06](https://www.subzero-wolf.com/assistance/answers/sub-zero/classic-wine-storage/built-in-wine-bw-series-error-code-ec-06) [Sub-Zero answer: Undercounter Wine (UW) error code EC 06](https://www.subzero-wolf.com/assistance/answers/sub-zero/undercounter-wine-storage/undercounter-wine-uw-storage-series-error-code-ec-06) Every code on this site is taken from the manufacturer's documentation, never from a forum or a parts listing. Undercounter Wine (UW) models and Classic (formerly Built-In, BW) wine storage, which show two-digit EC codes. Designer wine columns and Designer undercounter units report the same kind of problem with three-part codes instead. ## Sub-Zero EC06 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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Look at the back wall of the upper section for frost or ice; a coil that is not clearing itself is a sign this probe matters right now. If it comes back, it needs a visit. ### Why would EC06 cause ice on the back wall of my Sub-Zero? The evaporator probe helps the control decide when the coil needs to warm up and shed frost. With a bad reading, that step can be skipped or cut short, and frost builds. ### What is the difference between EC05 and EC06? EC05 is the probe that measures the air around the upper bottles. EC06 is the probe clamped to the upper cooling coil. ### Is it safe to keep wine in the unit while EC06 is showing? Usually yes for a short time if the temperature stays near your setting. Check with a thermometer, and move the most valuable bottles somewhere cool and dark if the upper section starts to warm. --- **[Read on the site: Sub-Zero EC06: the upper evaporator sensor is not reading](https://winecoolerrepair.center/error-codes/sub-zero-ec06/)** **[Book a visit with WineCoolerRepair.center](https://winecoolerrepair.center/schedule/)**