--- title: "U-Line Amb Thrm Open: the room temperature sensor is not reading" description: "What Amb Thrm Open means on U-Line Amb Thrm Open: the room temperature sensor is not readings, what to check before booking, and when it is not a failure at…" url: "https://winecoolerrepair.center/error-codes/u-line-amb-thrm-open/" --- # U-Line Amb Thrm Open: the room temperature sensor is not reading U-Line 3000 Series units also measure the air in the room with an ambient thermistor. ## What Amb Thrm Open actually means. U-Line 3000 Series units also measure the air in the room with an ambient thermistor. Amb Thrm Open and Amb Thrm Short mean that circuit has failed. The wine zones can keep cooling, but the control loses the room reading it uses to adjust its behavior. U-Line wine cooler display · also shown as Amb Thrm Short What to do when Amb Thrm Open 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 U-Line U-Line wine cooler repair for undercounter cabinets that leak, frost up or stop holding a steady temperature. ### Source U-Line 3036WCWC User Guide & Service Manual (3000 Series) U-Line 3000 Series with the text display, such as the 3036WCWC 36-inch dual-zone wine unit. On dual-zone models the code is preceded by L or R for the left or right side; single-zone models show it without a letter. ## Before you book, in this order. Each step comes from U-Line's own guidance for Amb Thrm Open on its wine coolers. Follow it to the end: the last card says whether this is a visit. 01 Check that both zones are still near their settings with a thermometer. 02 Note whether the display says Open or Short. 03 Book a visit; U-Line gives no owner fix beyond contacting service. ### 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 Amb Thrm is not a zone sensor, so it does not by itself mean the wine is warm or cold. Zone sensors report as Zone T Open or Zone T Short. ## What you may notice with it. The wine cooler problems Amb Thrm Open 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 Temperature Swings**](https://winecoolerrepair.center/problems/wine-cooler-temperature-swings/) - [**Wine Cooler Running Constantly**](https://winecoolerrepair.center/problems/wine-cooler-running-constantly/) Problem ### Wine Cooler Error Code 7 causes, cheapest first Where Amb Thrm Open 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/) ## U-Line wine coolers. U-Line wine cooler repair for undercounter cabinets that leak, frost up or stop holding a steady temperature. [U-Line wine cooler repair](https://winecoolerrepair.center/brands/u-line/) More U-Line codes [dr](https://winecoolerrepair.center/error-codes/u-line-dr/) [Door Open 5M](https://winecoolerrepair.center/error-codes/u-line-door-open-5m/) [Temp Hi 6H+](https://winecoolerrepair.center/error-codes/u-line-temp-hi-6h/) [Temp Hi 12H+](https://winecoolerrepair.center/error-codes/u-line-temp-hi-12h/) [Temp Lo 6H+](https://winecoolerrepair.center/error-codes/u-line-temp-lo-6h/) [Zone T Open](https://winecoolerrepair.center/error-codes/u-line-zone-t-open/) [Zone T Short](https://winecoolerrepair.center/error-codes/u-line-zone-t-short/) [No Comm](https://winecoolerrepair.center/error-codes/u-line-no-comm/) [Showroom mode](https://winecoolerrepair.center/error-codes/u-line-showroom-mode/) 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/) [Sub-Zero EC05](https://winecoolerrepair.center/error-codes/sub-zero-ec05/) [Vinotemp E1](https://winecoolerrepair.center/error-codes/vinotemp-e1/) [All 19 codes of this kind](https://winecoolerrepair.center/error-codes/#family-sensor) U-Line 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. U-Line builds this ### Freestanding wine cooler A wine cooler that stands on its own in a dining room, a den or a basement, cooled either by a compressor or by a thermoelectric module, and vented at the back or the sides. U-Line 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 U-Line's own words > Ambient thermistor circuit open. [U-Line 3036WCWC User Guide & Service Manual (3000 Series)](https://www.u-line.com/userguide/pdf/index/sku/U-3036WCWCINT-00B/) [U-Line 3036WCWC User Guide & Service Manual (3000 Series)](https://www.u-line.com/userguide/pdf/index/sku/U-3036WCWCINT-00B/) [U-Line 3036WCWC User Guide & Service Manual (3000 Series)](https://www.u-line.com/userguide/pdf/index/sku/U-3036WCWCINT-00B/) Every code on this site is taken from the manufacturer's documentation, never from a forum or a parts listing. U-Line 3000 Series with the text display, such as the 3036WCWC 36-inch dual-zone wine unit. On dual-zone models the code is preceded by L or R for the left or right side; single-zone models show it without a letter. ## U-Line Amb Thrm Open 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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Check that both zones are still near their settings with a thermometer. If it comes back, it needs a visit. ### What does the ambient sensor do on a U-Line wine unit? It measures the room so the control knows what the unit is working against. It does not control a wine zone directly. ### Is it safe to keep using the unit with Amb Thrm Open? Generally yes, as long as the zones stay at temperature. Keep an eye on them until the sensor is replaced. ### Why would the room sensor fail? Most often a loose or damaged connection, and sometimes the probe itself. U-Line’s service steps check both. --- **[Read on the site: U-Line Amb Thrm Open: the room temperature sensor is not reading](https://winecoolerrepair.center/error-codes/u-line-amb-thrm-open/)** **[Book a visit with WineCoolerRepair.center](https://winecoolerrepair.center/schedule/)**