--- title: "Marvel Eu: the upper zone sensor has failed" description: "What Eu means on Marvel Eu: the upper zone sensor has faileds, what to check before booking, and when it is not a failure at all." url: "https://winecoolerrepair.center/error-codes/marvel-eu/" --- # Marvel Eu: the upper zone sensor has failed Eu is the upper zone temperature sensor code on older Marvel dual-zone units. ## What Eu actually means. Eu is the upper zone temperature sensor code on older Marvel dual-zone units. The control reads the sensor constantly, and an open or shorted circuit triggers the code. Marvel warns it can lead to the wrong wine storage temperatures and says the sensor needs replacing. Marvel wine cooler display What to do when Eu 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 Marvel Marvel wine coolers serviced where they are installed, from a warm cabinet to a door that no longer closes tight. ### Source Marvel owner’s guide 41013316 (ML24WB dual-zone wine and beverage unit and related models) Older Marvel units covered by owner’s guide 41013316, which include the ML24WB dual-zone model whose upper zone is meant only for wine. These units use keypads with Loc, VAC and indicator lights; current models use different displays. ## Before you book, in this order. Each step comes from Marvel's own guidance for Eu on its wine coolers. Follow it to the end: the last card says whether this is a visit. 01 Check the upper zone with a thermometer. 02 Move bottles from the upper zone if it is drifting warm or cold. 03 Book a visit for the sensor replacement Marvel calls for. ### 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 Eu is not a warm alarm; the Temp indicator is. It is also not the lower zone, which reports as EL. ## What you may notice with it. The wine cooler problems Eu 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 - [**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/) - [**Wine Cooler Too Cold for the Wine**](https://winecoolerrepair.center/problems/wine-cooler-too-cold/) Problem ### Wine Cooler Error Code 7 causes, cheapest first Where Eu 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/) ## Marvel wine coolers. Marvel wine coolers serviced where they are installed, from a warm cabinet to a door that no longer closes tight. [Marvel wine cooler repair](https://winecoolerrepair.center/brands/marvel/) More Marvel codes [HH](https://winecoolerrepair.center/error-codes/marvel-hh/) [LL](https://winecoolerrepair.center/error-codes/marvel-ll/) [dr](https://winecoolerrepair.center/error-codes/marvel-dr/) [Showroom mode](https://winecoolerrepair.center/error-codes/marvel-showroom-mode/) [EL](https://winecoolerrepair.center/error-codes/marvel-el/) [Ed](https://winecoolerrepair.center/error-codes/marvel-ed/) [E1](https://winecoolerrepair.center/error-codes/marvel-e1/) [do](https://winecoolerrepair.center/error-codes/marvel-do/) [Loc](https://winecoolerrepair.center/error-codes/marvel-loc/) [VAC](https://winecoolerrepair.center/error-codes/marvel-vac/) [Power Failure](https://winecoolerrepair.center/error-codes/marvel-power-failure/) 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/) [Perlick P1F](https://winecoolerrepair.center/error-codes/perlick-p1f/) [Sub-Zero EC05](https://winecoolerrepair.center/error-codes/sub-zero-ec05/) [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 18 codes of this kind](https://winecoolerrepair.center/error-codes/#family-sensor) Marvel 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. Marvel 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 Marvel's own words > Failed temperature sensor in the upper zone compartment. [Marvel owner’s guide 41013316 (ML24WB dual-zone wine and beverage unit and related models)](https://www.marvelrefrigeration.com/pub/media/marvel/userguide/41013316-CB-MARVEL-REFRIGERATORS-OWNERS-GUIDE-REV-T.PDF) [Marvel owner’s guide 41013316 (ML24WB dual-zone wine and beverage unit and related models)](https://www.marvelrefrigeration.com/pub/media/marvel/userguide/41013316-CB-MARVEL-REFRIGERATORS-OWNERS-GUIDE-REV-T.PDF) [Marvel owner’s guide 41013316 (ML24WB dual-zone wine and beverage unit and related models)](https://www.marvelrefrigeration.com/pub/media/marvel/userguide/41013316-CB-MARVEL-REFRIGERATORS-OWNERS-GUIDE-REV-T.PDF) Every code on this site is taken from the manufacturer's documentation, never from a forum or a parts listing. Older Marvel units covered by owner’s guide 41013316, which include the ML24WB dual-zone model whose upper zone is meant only for wine. These units use keypads with Loc, VAC and indicator lights; current models use different displays. ## Marvel Eu 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. [All service areas](https://winecoolerrepair.center/locations/) [Tampa Bay](https://winecoolerrepair.center/locations/tampa-bay/) FL · 31 areas - [Hyde Park](https://winecoolerrepair.center/locations/tampa-bay/hyde-park/) - [Davis Islands](https://winecoolerrepair.center/locations/tampa-bay/davis-islands/) - [Palma Ceia](https://winecoolerrepair.center/locations/tampa-bay/palma-ceia/) - [Westchase](https://winecoolerrepair.center/locations/tampa-bay/westchase/) - [Carrollwood](https://winecoolerrepair.center/locations/tampa-bay/carrollwood/) - [Belleair](https://winecoolerrepair.center/locations/tampa-bay/belleair/) - [St. Pete Beach](https://winecoolerrepair.center/locations/tampa-bay/st-pete-beach/) - [Palm Harbor](https://winecoolerrepair.center/locations/tampa-bay/palm-harbor/) [Orlando](https://winecoolerrepair.center/locations/orlando/) FL · 30 areas - [Winter Park](https://winecoolerrepair.center/locations/orlando/winter-park/) - [Windermere](https://winecoolerrepair.center/locations/orlando/windermere/) - [Dr. Phillips](https://winecoolerrepair.center/locations/orlando/dr-phillips/) - [Bay Hill](https://winecoolerrepair.center/locations/orlando/bay-hill/) - [Lake Nona](https://winecoolerrepair.center/locations/orlando/lake-nona/) - [Heathrow](https://winecoolerrepair.center/locations/orlando/heathrow/) - [Celebration](https://winecoolerrepair.center/locations/orlando/celebration/) [Miami / South Florida](https://winecoolerrepair.center/locations/south-florida/) FL · 47 areas - [Brickell](https://winecoolerrepair.center/locations/south-florida/brickell/) - [Coconut Grove](https://winecoolerrepair.center/locations/south-florida/coconut-grove/) - [Coral Gables](https://winecoolerrepair.center/locations/south-florida/coral-gables/) - [Pinecrest](https://winecoolerrepair.center/locations/south-florida/pinecrest/) - [Key Biscayne](https://winecoolerrepair.center/locations/south-florida/key-biscayne/) - [Aventura](https://winecoolerrepair.center/locations/south-florida/aventura/) - [Sunny Isles Beach](https://winecoolerrepair.center/locations/south-florida/sunny-isles-beach/) - [Bal Harbour](https://winecoolerrepair.center/locations/south-florida/bal-harbour/) - [Miami Beach](https://winecoolerrepair.center/locations/south-florida/miami-beach/) - [Golden Beach](https://winecoolerrepair.center/locations/south-florida/golden-beach/) - [Weston](https://winecoolerrepair.center/locations/south-florida/weston/) - [Boca Raton](https://winecoolerrepair.center/locations/south-florida/boca-raton/) - [Palm Beach](https://winecoolerrepair.center/locations/south-florida/palm-beach/) [New York Metro](https://winecoolerrepair.center/locations/new-york/) NY · 75 areas - [Upper East Side](https://winecoolerrepair.center/locations/new-york/upper-east-side/) - [Upper West Side](https://winecoolerrepair.center/locations/new-york/upper-west-side/) - [Tribeca](https://winecoolerrepair.center/locations/new-york/tribeca/) - [SoHo](https://winecoolerrepair.center/locations/new-york/soho/) - [Greenwich Village](https://winecoolerrepair.center/locations/new-york/greenwich-village/) - [Battery Park City](https://winecoolerrepair.center/locations/new-york/battery-park-city/) - [Brooklyn Heights](https://winecoolerrepair.center/locations/new-york/brooklyn-heights/) - [Park Slope](https://winecoolerrepair.center/locations/new-york/park-slope/) - [DUMBO](https://winecoolerrepair.center/locations/new-york/dumbo/) - [Forest Hills](https://winecoolerrepair.center/locations/new-york/forest-hills/) - [Great Neck](https://winecoolerrepair.center/locations/new-york/great-neck/) - [Southampton](https://winecoolerrepair.center/locations/new-york/southampton/) - [Scarsdale](https://winecoolerrepair.center/locations/new-york/scarsdale/) [Houston](https://winecoolerrepair.center/locations/houston/) TX · 36 areas - [River Oaks](https://winecoolerrepair.center/locations/houston/river-oaks/) - [Memorial](https://winecoolerrepair.center/locations/houston/memorial/) - [Tanglewood](https://winecoolerrepair.center/locations/houston/tanglewood/) - [Greater Heights](https://winecoolerrepair.center/locations/houston/greater-heights/) - [Kingwood](https://winecoolerrepair.center/locations/houston/kingwood/) - [Bellaire](https://winecoolerrepair.center/locations/houston/bellaire/) - [Bunker Hill Village](https://winecoolerrepair.center/locations/houston/bunker-hill-village/) - [Piney Point Village](https://winecoolerrepair.center/locations/houston/piney-point-village/) - [Hunters Creek Village](https://winecoolerrepair.center/locations/houston/hunters-creek-village/) - [Sugar Land](https://winecoolerrepair.center/locations/houston/sugar-land/) - [Cinco Ranch](https://winecoolerrepair.center/locations/houston/cinco-ranch/) - [The Woodlands](https://winecoolerrepair.center/locations/houston/the-woodlands/) - [West University](https://winecoolerrepair.center/locations/houston/west-university/) [Chicago](https://winecoolerrepair.center/locations/chicagoland/) IL · 50 areas - [Lincoln Park](https://winecoolerrepair.center/locations/chicagoland/lincoln-park/) - [Near North Side](https://winecoolerrepair.center/locations/chicagoland/near-north-side/) - [West Loop / Near West Side](https://winecoolerrepair.center/locations/chicagoland/west-loop-near-west-side/) - [Wilmette](https://winecoolerrepair.center/locations/chicagoland/wilmette/) - [Winnetka](https://winecoolerrepair.center/locations/chicagoland/winnetka/) - [Glencoe](https://winecoolerrepair.center/locations/chicagoland/glencoe/) - [River Forest](https://winecoolerrepair.center/locations/chicagoland/river-forest/) - [Oak Park](https://winecoolerrepair.center/locations/chicagoland/oak-park/) - [Hinsdale](https://winecoolerrepair.center/locations/chicagoland/hinsdale/) - [Lake Forest](https://winecoolerrepair.center/locations/chicagoland/lake-forest/) - [Highland Park](https://winecoolerrepair.center/locations/chicagoland/highland-park/) - [Gold Coast](https://winecoolerrepair.center/locations/chicagoland/gold-coast/) - [Lakeview](https://winecoolerrepair.center/locations/chicagoland/lakeview/) [Los Angeles](https://winecoolerrepair.center/locations/los-angeles/) CA · 95 areas - [Beverly Hills](https://winecoolerrepair.center/locations/los-angeles/beverly-hills/) - [Bel Air](https://winecoolerrepair.center/locations/los-angeles/bel-air/) - [Holmby Hills](https://winecoolerrepair.center/locations/los-angeles/holmby-hills/) - [Brentwood](https://winecoolerrepair.center/locations/los-angeles/brentwood/) - [Pacific Palisades](https://winecoolerrepair.center/locations/los-angeles/pacific-palisades/) - [Santa Monica](https://winecoolerrepair.center/locations/los-angeles/santa-monica/) - [Hancock Park](https://winecoolerrepair.center/locations/los-angeles/hancock-park/) - [Studio City](https://winecoolerrepair.center/locations/los-angeles/studio-city/) - [Calabasas](https://winecoolerrepair.center/locations/los-angeles/calabasas/) - [Manhattan Beach](https://winecoolerrepair.center/locations/los-angeles/manhattan-beach/) - [Palos Verdes Estates](https://winecoolerrepair.center/locations/los-angeles/palos-verdes-estates/) - [Pasadena](https://winecoolerrepair.center/locations/los-angeles/pasadena/) - [San Marino](https://winecoolerrepair.center/locations/los-angeles/san-marino/) - [Malibu](https://winecoolerrepair.center/locations/los-angeles/malibu/) [San Diego](https://winecoolerrepair.center/locations/san-diego/) CA · 31 areas - [La Jolla](https://winecoolerrepair.center/locations/san-diego/la-jolla/) - [Carmel Valley](https://winecoolerrepair.center/locations/san-diego/carmel-valley/) - [Point Loma](https://winecoolerrepair.center/locations/san-diego/point-loma/) - [Del Mar](https://winecoolerrepair.center/locations/san-diego/del-mar/) - [Rancho Santa Fe](https://winecoolerrepair.center/locations/san-diego/rancho-santa-fe/) - [Coronado](https://winecoolerrepair.center/locations/san-diego/coronado/) - [Encinitas](https://winecoolerrepair.center/locations/san-diego/encinitas/) - [Solana Beach](https://winecoolerrepair.center/locations/san-diego/solana-beach/) [San Francisco Bay Area](https://winecoolerrepair.center/locations/bay-area/) CA · 74 areas - [Pacific Heights](https://winecoolerrepair.center/locations/bay-area/pacific-heights/) - [Presidio Heights](https://winecoolerrepair.center/locations/bay-area/presidio-heights/) - [Russian Hill](https://winecoolerrepair.center/locations/bay-area/russian-hill/) - [Noe Valley](https://winecoolerrepair.center/locations/bay-area/noe-valley/) - [Sea Cliff](https://winecoolerrepair.center/locations/bay-area/sea-cliff/) - [Hillsborough](https://winecoolerrepair.center/locations/bay-area/hillsborough/) - [Atherton](https://winecoolerrepair.center/locations/bay-area/atherton/) - [Woodside](https://winecoolerrepair.center/locations/bay-area/woodside/) - [Palo Alto](https://winecoolerrepair.center/locations/bay-area/palo-alto/) - [Los Altos Hills](https://winecoolerrepair.center/locations/bay-area/los-altos-hills/) - [Tiburon](https://winecoolerrepair.center/locations/bay-area/tiburon/) - [Piedmont](https://winecoolerrepair.center/locations/bay-area/piedmont/) - [Marina](https://winecoolerrepair.center/locations/bay-area/marina/) For the heart of your home. ## Questions about Eu. ### Can I clear Eu myself? Check the upper zone with a thermometer. If it comes back, it needs a visit. ### What does the u in Eu stand for? Upper. Marvel’s older dual-zone units show Eu for the upper zone sensor and EL for the lower. ### Can I reset Eu myself? Marvel gives no reset for it; its guide says the sensor has to be replaced. ### Will the lower zone keep working with Eu? Yes, it has its own sensor. Only the upper zone loses its reading. --- **[Read on the site: Marvel Eu: the upper zone sensor has failed](https://winecoolerrepair.center/error-codes/marvel-eu/)** **[Book a visit with WineCoolerRepair.center](https://winecoolerrepair.center/schedule/)**