--- title: "Sub-Zero EC08: the lower evaporator sensor is not reading" description: "What EC08 means on Sub-Zero EC08: the lower 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-ec08/" --- # Sub-Zero EC08: the lower evaporator sensor is not reading EC08 points at the lower evaporator thermistor, the coil probe for the lower section. ## What EC08 actually means. EC08 points at the lower evaporator thermistor, the coil probe for the lower section. The control uses it to manage that coil, so a bad reading can leave frost on the coil or make the lower section cool unevenly. Sub-Zero sets it after an open or short of 10 seconds or more, or repeated inconsistent readings. Sub-Zero wine cooler display · also shown as EC 08, EC8 What to do when EC08 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 08 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 EC08 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 lower section for frost or ice. 02 Reset the breaker for 30 seconds and see whether EC08 returns. 03 If it does, book a visit and let the technician see any ice before it is cleared. ### 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 EC08 does not report the lower air temperature; that probe reports as EC07. It is also not a sealed-system problem, which Sub-Zero shows as EC15. ## What you may notice with it. The wine cooler problems EC08 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/) - [**One Zone Warm in a Dual-Zone Wine Cooler**](https://winecoolerrepair.center/problems/one-zone-warm-in-a-dual-zone/) - [**Wine Cooler Temperature Swings**](https://winecoolerrepair.center/problems/wine-cooler-temperature-swings/) Problem ### Wine Cooler Error Code 7 causes, cheapest first Where EC08 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/) [EC06](https://winecoolerrepair.center/error-codes/sub-zero-ec06/) [EC07](https://winecoolerrepair.center/error-codes/sub-zero-ec07/) [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 > Lower evaporator thermistor read open or shorted for 10 or more seconds, or repeatedly read inconsistent temperatures [Sub-Zero answer: Undercounter Wine (UW) error code EC 08](https://www.subzero-wolf.com/assistance/answers/sub-zero/undercounter-wine-storage/undercounter-wine-uw-storage-series-error-code-ec-08) [Sub-Zero answer: Classic wine storage (BW) error code EC 08](https://www.subzero-wolf.com/assistance/answers/sub-zero/classic-wine-storage/built-in-wine-bw-series-error-code-ec-08) [Sub-Zero answer: Undercounter Wine (UW) error code EC 08](https://www.subzero-wolf.com/assistance/answers/sub-zero/undercounter-wine-storage/undercounter-wine-uw-storage-series-error-code-ec-08) 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 EC08 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 lower section for frost or ice. If it comes back, it needs a visit. ### Does EC08 mean my Sub-Zero needs a new cooling system? No. It names a probe on the coil, a much smaller repair than anything involving the sealed system. ### Why is there water under my Sub-Zero after EC08 appeared? Frost that built up on the lower coil can melt all at once when the unit finally clears it, and extra water can overflow the drain path. Wipe it up, stay clear of the outlet if water reaches it, and mention it when you book. ### Is EC08 shown on single-zone Sub-Zero wine units? Sub-Zero lists EC08 for its UW and BW wine lines, which cool upper and lower sections separately. The rating plate tells you which series you have. --- **[Read on the site: Sub-Zero EC08: the lower evaporator sensor is not reading](https://winecoolerrepair.center/error-codes/sub-zero-ec08/)** **[Book a visit with WineCoolerRepair.center](https://winecoolerrepair.center/schedule/)**