--- title: "U-Line No Comm: the display has stopped talking to the control" description: "What No Comm means on U-Line No Comm: the display has stopped talking to the controls, what to check before booking, and when it is not a failure at all." url: "https://winecoolerrepair.center/error-codes/u-line-no-comm/" --- # U-Line No Comm: the display has stopped talking to the control No Comm means the display on the door and the main control board are no longer communicating. ## What No Comm actually means. No Comm means the display on the door and the main control board are no longer communicating. U-Line asks owners to disconnect and reconnect power; if that does not help, its service table points at the display and its data cable, which may mean replacing the whole door. U-Line wine cooler display What to do when No Comm 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 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 No Comm on its wine coolers. Follow it to the end: the last card says whether this is a visit. 01 Unplug the unit or switch off its breaker, wait a minute, and restore power. 02 If No Comm returns, check the wine temperature with a thermometer, since you cannot rely on the display. 03 Book a visit if the message persists. ### 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 No Comm is not a cooling problem; the unit may still be cooling normally. It is also not a zone sensor code. ## What you may notice with it. The wine cooler problems No Comm 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 Temperature Swings**](https://winecoolerrepair.center/problems/wine-cooler-temperature-swings/) Problem ### Wine Cooler Error Code 7 causes, cheapest first Where No Comm 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/) ## 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/) [Amb Thrm Open](https://winecoolerrepair.center/error-codes/u-line-amb-thrm-open/) [Showroom mode](https://winecoolerrepair.center/error-codes/u-line-showroom-mode/) 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) 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 > communication to the display. [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 No Comm 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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Unplug the unit or switch off its breaker, wait a minute, and restore power. If it comes back, it needs a visit. ### Why would No Comm mean a new door on a U-Line? On the 3000 Series the display is built into the door. U-Line’s service notes say to replace the entire door if the display or its cable has failed. ### Can I still use the unit while No Comm is showing? Often yes, since the board may still be cooling. You just cannot see or change settings, so check the temperature yourself. ### Did a power outage cause No Comm? It can. That is why U-Line’s first step is to disconnect and reconnect power. --- **[Read on the site: U-Line No Comm: the display has stopped talking to the control](https://winecoolerrepair.center/error-codes/u-line-no-comm/)** **[Book a visit with WineCoolerRepair.center](https://winecoolerrepair.center/schedule/)**