--- title: "Viking dishwasher showing 3-1 | DishwasherRepair.center" description: "What 3-1 means on Viking dishwashers, what to check before booking, and when it is not a failure at all." url: "https://dishwasherrepair.center/error-codes/viking-3-1/" --- # Viking dishwasher showing 3-1 Viking's UI-MC communication error: the user interface on the door and the motor control are not talking. ## What 3-1 actually means. Viking's UI-MC communication error: the user interface on the door and the motor control are not talking. Viking dishwasher display · also shown as Pots/Pans 3 flashes, Normal Wash 1 flash What to do when 3-1 shows on the dishwasher ### Kind of code Communication The control board and the user panel on the door stopped talking to each other. The ribbon cable through the door hinge is checked before either board. ### Usually leads to Controls and sensors Dead panels, stuck cycles and blinking lights, separated into board, keypad, sensor and wiring before a part is ordered. ### Shows up as Dishwasher Control Panel Not Responding Buttons do nothing, only some keys work, or the display stays dark or frozen. ### Make Viking Built-in dishwashers designed to complete a professional-style Viking kitchen. ### Source Viking 451 Series built-in dishwashers use & care manual: troubleshooting code table The 3-1 pattern is in the tables for Viking 451, 324 and later 450 Series built-in dishwashers. ## Before you book, in this order. Each step comes from Viking's own guidance for 3-1 on its dishwashers. Follow it to the end: the last card says whether this is a visit. 01 Hold Start for 4 seconds to reset. 02 Run a short cycle. 03 If the 3-1 pattern returns, book a visit. ### Still there? It usually turns into [controls and sensors](https://dishwasherrepair.center/services/controls-and-sensors/). Book with the code and the model number. ### What not to do Do not replace the door controls on a guess. The link between the two boards is checked before either one. ## What you may notice with it. The dishwasher problem 3-1 tends to arrive with. Answer these at the dishwasher before anyone is booked. [All problems](https://dishwasherrepair.center/problems/) Before you call ### [Dishwasher Control Panel Not Responding](https://dishwasherrepair.center/problems/control-panel-not-responding/) [All 5 causes, cheapest first](https://dishwasherrepair.center/problems/control-panel-not-responding/) Problem ### Dishwasher Control Panel Not Responding 5 causes, cheapest first Where 3-1 usually leads ## Controls and sensors. **Control board, keypad or sensor · moderate.** Book a visit [What the job involves](https://dishwasherrepair.center/services/controls-and-sensors/) ## Read these before the visit. Short guides that make the call quicker and the diagnosis cheaper. [All guides](https://dishwasherrepair.center/guides/) Is it safe to run, and what about the floor ### Burning Smell or Tripped Breaker: What to Do Checks you can make yourself ### Find your dishwasher's model number Error codes ### All 188 codes, by make ## Viking dishwashers. Built-in dishwashers designed to complete a professional-style Viking kitchen. [Viking dishwasher repair](https://dishwasherrepair.center/brands/viking/) More Viking codes [Both lights flashing](https://dishwasherrepair.center/error-codes/viking-both-lights-flashing/) [1-5](https://dishwasherrepair.center/error-codes/viking-1-5/) [2-2](https://dishwasherrepair.center/error-codes/viking-2-2/) [3-3](https://dishwasherrepair.center/error-codes/viking-3-3/) [4-1](https://dishwasherrepair.center/error-codes/viking-4-1/) [1-2](https://dishwasherrepair.center/error-codes/viking-1-2/) Communication on other makes [Kenmore F2E2](https://dishwasherrepair.center/error-codes/kenmore-f2e2-he/) [KitchenAid F2E2](https://dishwasherrepair.center/error-codes/kitchenaid-f2e2/) [Maytag F6E1](https://dishwasherrepair.center/error-codes/maytag-f6e1/) [Samsung CE](https://dishwasherrepair.center/error-codes/samsung-ce/) [Whirlpool F1E2](https://dishwasherrepair.center/error-codes/whirlpool-f1e2/) [ZLINE Ed](https://dishwasherrepair.center/error-codes/zline-ed/) Viking builds this ### Built-in dishwasher The standard 24-inch machine under the counter, and the one nearly every American kitchen has. ## In Viking's own words > UI-MC Comm Error Reset Unit and try again. If problem persists, contact service. [Viking 451 Series built-in dishwashers use & care manual: troubleshooting code table](https://vikingrange.com/file/652/m6004836_F20879C_EN_451_Series_Built-In_Dishwashers.pdf) Every code on this site is taken from the manufacturer's documentation, never from a forum or a parts listing. The 3-1 pattern is in the tables for Viking 451, 324 and later 450 Series built-in dishwashers. ## Viking 3-1 dishwasher 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://dishwasherrepair.center/locations/) [Tampa Bay](https://dishwasherrepair.center/locations/tampa-bay/) FL · 31 areas - [Hyde Park](https://dishwasherrepair.center/locations/tampa-bay/hyde-park/) - [Davis Islands](https://dishwasherrepair.center/locations/tampa-bay/davis-islands/) - [Palma Ceia](https://dishwasherrepair.center/locations/tampa-bay/palma-ceia/) - [Westchase](https://dishwasherrepair.center/locations/tampa-bay/westchase/) - [Carrollwood](https://dishwasherrepair.center/locations/tampa-bay/carrollwood/) - [Belleair](https://dishwasherrepair.center/locations/tampa-bay/belleair/) - [St. Pete Beach](https://dishwasherrepair.center/locations/tampa-bay/st-pete-beach/) - [Palm Harbor](https://dishwasherrepair.center/locations/tampa-bay/palm-harbor/) [Orlando](https://dishwasherrepair.center/locations/orlando/) FL · 30 areas - [Winter Park](https://dishwasherrepair.center/locations/orlando/winter-park/) - [Windermere](https://dishwasherrepair.center/locations/orlando/windermere/) - [Dr. Phillips](https://dishwasherrepair.center/locations/orlando/dr-phillips/) - [Bay Hill](https://dishwasherrepair.center/locations/orlando/bay-hill/) - [Lake Nona](https://dishwasherrepair.center/locations/orlando/lake-nona/) - [Heathrow](https://dishwasherrepair.center/locations/orlando/heathrow/) - [Celebration](https://dishwasherrepair.center/locations/orlando/celebration/) [Miami / South Florida](https://dishwasherrepair.center/locations/south-florida/) FL · 47 areas - [Brickell](https://dishwasherrepair.center/locations/south-florida/brickell/) - [Coconut Grove](https://dishwasherrepair.center/locations/south-florida/coconut-grove/) - [Coral Gables](https://dishwasherrepair.center/locations/south-florida/coral-gables/) - [Pinecrest](https://dishwasherrepair.center/locations/south-florida/pinecrest/) - [Key Biscayne](https://dishwasherrepair.center/locations/south-florida/key-biscayne/) - [Aventura](https://dishwasherrepair.center/locations/south-florida/aventura/) - [Sunny Isles Beach](https://dishwasherrepair.center/locations/south-florida/sunny-isles-beach/) - [Bal Harbour](https://dishwasherrepair.center/locations/south-florida/bal-harbour/) - [Miami Beach](https://dishwasherrepair.center/locations/south-florida/miami-beach/) - [Golden Beach](https://dishwasherrepair.center/locations/south-florida/golden-beach/) - [Weston](https://dishwasherrepair.center/locations/south-florida/weston/) - [Boca Raton](https://dishwasherrepair.center/locations/south-florida/boca-raton/) - [Palm Beach](https://dishwasherrepair.center/locations/south-florida/palm-beach/) [New York Metro](https://dishwasherrepair.center/locations/new-york/) NY · 75 areas - [Upper East Side](https://dishwasherrepair.center/locations/new-york/upper-east-side/) - [Upper West Side](https://dishwasherrepair.center/locations/new-york/upper-west-side/) - [Tribeca](https://dishwasherrepair.center/locations/new-york/tribeca/) - [SoHo](https://dishwasherrepair.center/locations/new-york/soho/) - [Greenwich Village](https://dishwasherrepair.center/locations/new-york/greenwich-village/) - [Battery Park City](https://dishwasherrepair.center/locations/new-york/battery-park-city/) - [Brooklyn Heights](https://dishwasherrepair.center/locations/new-york/brooklyn-heights/) - [Park Slope](https://dishwasherrepair.center/locations/new-york/park-slope/) - [DUMBO](https://dishwasherrepair.center/locations/new-york/dumbo/) - [Forest Hills](https://dishwasherrepair.center/locations/new-york/forest-hills/) - [Great Neck](https://dishwasherrepair.center/locations/new-york/great-neck/) - [Southampton](https://dishwasherrepair.center/locations/new-york/southampton/) - [Scarsdale](https://dishwasherrepair.center/locations/new-york/scarsdale/) [Houston](https://dishwasherrepair.center/locations/houston/) TX · 36 areas - [River Oaks](https://dishwasherrepair.center/locations/houston/river-oaks/) - [Memorial](https://dishwasherrepair.center/locations/houston/memorial/) - [Tanglewood](https://dishwasherrepair.center/locations/houston/tanglewood/) - [Greater Heights](https://dishwasherrepair.center/locations/houston/greater-heights/) - [Kingwood](https://dishwasherrepair.center/locations/houston/kingwood/) - [Bellaire](https://dishwasherrepair.center/locations/houston/bellaire/) - [Bunker Hill Village](https://dishwasherrepair.center/locations/houston/bunker-hill-village/) - [Piney Point Village](https://dishwasherrepair.center/locations/houston/piney-point-village/) - [Hunters Creek Village](https://dishwasherrepair.center/locations/houston/hunters-creek-village/) - [Sugar Land](https://dishwasherrepair.center/locations/houston/sugar-land/) - [Cinco Ranch](https://dishwasherrepair.center/locations/houston/cinco-ranch/) - [The Woodlands](https://dishwasherrepair.center/locations/houston/the-woodlands/) - [West University](https://dishwasherrepair.center/locations/houston/west-university/) [Chicago](https://dishwasherrepair.center/locations/chicagoland/) IL · 50 areas - [Lincoln Park](https://dishwasherrepair.center/locations/chicagoland/lincoln-park/) - [Near North Side](https://dishwasherrepair.center/locations/chicagoland/near-north-side/) - [West Loop / Near West Side](https://dishwasherrepair.center/locations/chicagoland/west-loop-near-west-side/) - [Wilmette](https://dishwasherrepair.center/locations/chicagoland/wilmette/) - [Winnetka](https://dishwasherrepair.center/locations/chicagoland/winnetka/) - [Glencoe](https://dishwasherrepair.center/locations/chicagoland/glencoe/) - [River Forest](https://dishwasherrepair.center/locations/chicagoland/river-forest/) - [Oak Park](https://dishwasherrepair.center/locations/chicagoland/oak-park/) - [Hinsdale](https://dishwasherrepair.center/locations/chicagoland/hinsdale/) - [Lake Forest](https://dishwasherrepair.center/locations/chicagoland/lake-forest/) - [Highland Park](https://dishwasherrepair.center/locations/chicagoland/highland-park/) - [Gold Coast](https://dishwasherrepair.center/locations/chicagoland/gold-coast/) - [Lakeview](https://dishwasherrepair.center/locations/chicagoland/lakeview/) [Los Angeles](https://dishwasherrepair.center/locations/los-angeles/) CA · 95 areas - [Beverly Hills](https://dishwasherrepair.center/locations/los-angeles/beverly-hills/) - [Bel Air](https://dishwasherrepair.center/locations/los-angeles/bel-air/) - [Holmby Hills](https://dishwasherrepair.center/locations/los-angeles/holmby-hills/) - [Brentwood](https://dishwasherrepair.center/locations/los-angeles/brentwood/) - [Pacific Palisades](https://dishwasherrepair.center/locations/los-angeles/pacific-palisades/) - [Santa Monica](https://dishwasherrepair.center/locations/los-angeles/santa-monica/) - [Hancock Park](https://dishwasherrepair.center/locations/los-angeles/hancock-park/) - [Studio City](https://dishwasherrepair.center/locations/los-angeles/studio-city/) - [Calabasas](https://dishwasherrepair.center/locations/los-angeles/calabasas/) - [Manhattan Beach](https://dishwasherrepair.center/locations/los-angeles/manhattan-beach/) - [Palos Verdes Estates](https://dishwasherrepair.center/locations/los-angeles/palos-verdes-estates/) - [Pasadena](https://dishwasherrepair.center/locations/los-angeles/pasadena/) - [San Marino](https://dishwasherrepair.center/locations/los-angeles/san-marino/) - [Malibu](https://dishwasherrepair.center/locations/los-angeles/malibu/) [San Diego](https://dishwasherrepair.center/locations/san-diego/) CA · 31 areas - [La Jolla](https://dishwasherrepair.center/locations/san-diego/la-jolla/) - [Carmel Valley](https://dishwasherrepair.center/locations/san-diego/carmel-valley/) - [Point Loma](https://dishwasherrepair.center/locations/san-diego/point-loma/) - [Del Mar](https://dishwasherrepair.center/locations/san-diego/del-mar/) - [Rancho Santa Fe](https://dishwasherrepair.center/locations/san-diego/rancho-santa-fe/) - [Coronado](https://dishwasherrepair.center/locations/san-diego/coronado/) - [Encinitas](https://dishwasherrepair.center/locations/san-diego/encinitas/) - [Solana Beach](https://dishwasherrepair.center/locations/san-diego/solana-beach/) [San Francisco Bay Area](https://dishwasherrepair.center/locations/bay-area/) CA · 74 areas - [Pacific Heights](https://dishwasherrepair.center/locations/bay-area/pacific-heights/) - [Presidio Heights](https://dishwasherrepair.center/locations/bay-area/presidio-heights/) - [Russian Hill](https://dishwasherrepair.center/locations/bay-area/russian-hill/) - [Noe Valley](https://dishwasherrepair.center/locations/bay-area/noe-valley/) - [Sea Cliff](https://dishwasherrepair.center/locations/bay-area/sea-cliff/) - [Hillsborough](https://dishwasherrepair.center/locations/bay-area/hillsborough/) - [Atherton](https://dishwasherrepair.center/locations/bay-area/atherton/) - [Woodside](https://dishwasherrepair.center/locations/bay-area/woodside/) - [Palo Alto](https://dishwasherrepair.center/locations/bay-area/palo-alto/) - [Los Altos Hills](https://dishwasherrepair.center/locations/bay-area/los-altos-hills/) - [Tiburon](https://dishwasherrepair.center/locations/bay-area/tiburon/) - [Piedmont](https://dishwasherrepair.center/locations/bay-area/piedmont/) - [Marina](https://dishwasherrepair.center/locations/bay-area/marina/) For the heart of your home. ## Questions about 3-1. ### Can I clear 3-1 myself? Hold Start for 4 seconds to reset. If it comes back, it needs a visit. ### Should I replace the door controls on my Viking for 3-1? Not on a guess, since the connection between the door interface and the motor control is checked before either board. Reset by holding Start for four seconds first. ### What does the 3-1 pattern mean on a Viking? Viking labels it UI-MC, a communication error between the control panel in the door and the board that runs the motor. A short cycle after a reset shows whether it recurs. --- **[Read on the site: Viking dishwasher showing 3-1 | DishwasherRepair.center](https://dishwasherrepair.center/error-codes/viking-3-1/)** **[Book a visit with DishwasherRepair.center](https://dishwasherrepair.center/schedule/)**