--- title: "Delfield uLi: line voltage is below 96 volts" description: "What uLi means on Delfield uLi: line voltage is below 96 voltss, what to check before booking, and when it is not a failure at all." url: "https://commercialappliancerepair.center/error-codes/delfield-uli/" --- # Delfield uLi: line voltage is below 96 volts Delfield's controls report low line voltage when it falls below 96 volts. ## What uLi actually means. Delfield's controls report low line voltage when it falls below 96 volts. A compressor started on low voltage draws more current and runs hot. The cause is almost always in the building supply or in how the unit is plugged in. Delfield commercial appliance display · also shown as uLo What to do when uLi shows on the commercial appliance ### Kind of code Controls and power The controller itself is reporting trouble, or the supply behind it is: a display with dead segments, a keypad that stopped responding after steam or degreaser got behind it, relays that stick, stored recipes or cycles that vanished overnight, a blown control fuse, or one leg of a three-phase feed missing so half the heat or the pump is gone. A full power cycle at the breaker, done as the manual describes, clears a passing glitch; a code that returns, a scorched smell or any sign of moisture behind the panel means the breaker stays off, and that is a visit. ### Usually leads to Commercial controls and board repair Controllers, touch panels, relays, contactors and interlocks tested, and replaced only when the evidence says so. ### Shows up as Commercial Appliance Error Code on a Combi, Fryer, Dish Machine or Laundry Display A commercial appliance error code appears as letters or numbers on a combi, fryer, reach-in controller, dish machine or laundry machine display, or as a flashing light or an alarm tone. ### Make Delfield For a Delfield station that runs warm by late lunch, we time the visit to a slow hour so the pans can come out and the rail can be tested empty. ### Source Delfield 6000XL and 6100XL Series reach-ins, installation, operation and maintenance manual, part 9294254 (archived copy of the delfield.com PDF) uLi in the 6000XL/6100XL reach-in manual and uLo in the 4400/4500 prep table manual, both below 96 volts. ## Before you book, in this order. Each step comes from Delfield's own guidance for uLi on its commercial appliances. Follow it to the end: the last card says whether this is a visit. 01 Make sure the unit is on its own dedicated outlet, with no extension cord. 02 Note whether other equipment on the circuit starts at the same time the message appears. 03 Have an electrician measure the circuit, then book a visit if the unit still shows uLi on good voltage. ### Still there? It usually turns into [commercial controls and board repair](https://commercialappliancerepair.center/services/commercial-controls-and-board-repair/). Book with the code and the model number. ### What not to do uLi is not a failed control. It has a high-voltage twin, uHi, set at 140 volts. ## What you may notice with it. The commercial appliance problem uLi tends to arrive with. Answer these at the commercial appliance before anyone is booked. [All problems](https://commercialappliancerepair.center/problems/) Before you call ### [Commercial Appliance Error Code on a Combi, Fryer, Dish Machine or Laundry Display](https://commercialappliancerepair.center/problems/commercial-error-code/) [All 8 causes, cheapest first](https://commercialappliancerepair.center/problems/commercial-error-code/) Problem ### Commercial Appliance Error Code on a Combi, Fryer, Dish Machine or Laundry Display 8 causes, cheapest first Where uLi usually leads ## Commercial controls and board repair. **Controller, touch panel, probe or sensor, relay, contactor, power supply, door switch or interlock, tested before anything is changed · moderate.** Book a visit [What the job involves](https://commercialappliancerepair.center/services/commercial-controls-and-board-repair/) ## Delfield commercial appliances. For a Delfield station that runs warm by late lunch, we time the visit to a slow hour so the pans can come out and the rail can be tested empty. [Delfield commercial appliance repair](https://commercialappliancerepair.center/brands/delfield/) More Delfield codes [Hi](https://commercialappliancerepair.center/error-codes/delfield-hi/) [Lo](https://commercialappliancerepair.center/error-codes/delfield-lo/) [dEF](https://commercialappliancerepair.center/error-codes/delfield-def/) [E01](https://commercialappliancerepair.center/error-codes/delfield-e01/) [E02](https://commercialappliancerepair.center/error-codes/delfield-e02/) [LEA](https://commercialappliancerepair.center/error-codes/delfield-lea/) [uHi](https://commercialappliancerepair.center/error-codes/delfield-uhi/) [off](https://commercialappliancerepair.center/error-codes/delfield-off/) Controls and power on other makes [Alto-Shaam E02](https://commercialappliancerepair.center/error-codes/alto-shaam-e02/) [Beverage-Air uLi](https://commercialappliancerepair.center/error-codes/beverage-air-uli/) [Blodgett Com Error](https://commercialappliancerepair.center/error-codes/blodgett-com-error/) [Dexter F1](https://commercialappliancerepair.center/error-codes/dexter-f1/) [Frymaster E19](https://commercialappliancerepair.center/error-codes/frymaster-e19/) [Garland E01](https://commercialappliancerepair.center/error-codes/garland-e01/) [Hatco Communication Error](https://commercialappliancerepair.center/error-codes/hatco-communication-error/) [Henny Penny E-4](https://commercialappliancerepair.center/error-codes/henny-penny-e-4/) [All 64 codes of this kind](https://commercialappliancerepair.center/error-codes/#family-board) Delfield builds this ### Commercial cold storage Reach-in and pass-through cabinets, walk-in coolers and walk-in freezers, prep and sandwich tables, undercounter units and blast chillers that hold a kitchen's food at safe temperatures. Delfield builds this ### Commercial cooking equipment Fryers, griddles, charbroilers, restaurant ranges, convection and combi ovens, steamers, kettles, holding cabinets and toasters, on gas or electric, that make up the hot side of a kitchen line. ## In Delfield's own words > Line voltage too low, below 96 volts uLi [Delfield 6000XL and 6100XL Series reach-ins, installation, operation and maintenance manual, part 9294254 (archived copy of the delfield.com PDF)](https://web.archive.org/web/20260309094403/https://www.delfield.com/wp-content/uploads/2025/10/6000_IOM-Book_del_en_9294254.pdf) [Delfield 4400 and 4500 Series prep tables and compact units, IOM manual, part 9295093A (archived copy of the delfield.com PDF)](https://web.archive.org/web/20260309083222/https://www.delfield.com/wp-content/uploads/2026/01/9295093-4400P-4500P-IOM-Book.pdf) Every code on this site is taken from the manufacturer's documentation, never from a forum or a parts listing. uLi in the 6000XL/6100XL reach-in manual and uLo in the 4400/4500 prep table manual, both below 96 volts. ## Delfield uLi commercial appliance 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://commercialappliancerepair.center/locations/) [Tampa Bay](https://commercialappliancerepair.center/locations/tampa-bay/) FL · 31 areas - [Hyde Park](https://commercialappliancerepair.center/locations/tampa-bay/hyde-park/) - [Davis Islands](https://commercialappliancerepair.center/locations/tampa-bay/davis-islands/) - [Palma Ceia](https://commercialappliancerepair.center/locations/tampa-bay/palma-ceia/) - [Westchase](https://commercialappliancerepair.center/locations/tampa-bay/westchase/) - [Carrollwood](https://commercialappliancerepair.center/locations/tampa-bay/carrollwood/) - [Belleair](https://commercialappliancerepair.center/locations/tampa-bay/belleair/) - [St. Pete Beach](https://commercialappliancerepair.center/locations/tampa-bay/st-pete-beach/) - [Palm Harbor](https://commercialappliancerepair.center/locations/tampa-bay/palm-harbor/) [Orlando](https://commercialappliancerepair.center/locations/orlando/) FL · 30 areas - [Winter Park](https://commercialappliancerepair.center/locations/orlando/winter-park/) - [Windermere](https://commercialappliancerepair.center/locations/orlando/windermere/) - [Dr. Phillips](https://commercialappliancerepair.center/locations/orlando/dr-phillips/) - [Bay Hill](https://commercialappliancerepair.center/locations/orlando/bay-hill/) - [Lake Nona](https://commercialappliancerepair.center/locations/orlando/lake-nona/) - [Heathrow](https://commercialappliancerepair.center/locations/orlando/heathrow/) - [Celebration](https://commercialappliancerepair.center/locations/orlando/celebration/) [Miami / South Florida](https://commercialappliancerepair.center/locations/south-florida/) FL · 47 areas - [Brickell](https://commercialappliancerepair.center/locations/south-florida/brickell/) - [Coconut Grove](https://commercialappliancerepair.center/locations/south-florida/coconut-grove/) - [Coral Gables](https://commercialappliancerepair.center/locations/south-florida/coral-gables/) - [Pinecrest](https://commercialappliancerepair.center/locations/south-florida/pinecrest/) - [Key Biscayne](https://commercialappliancerepair.center/locations/south-florida/key-biscayne/) - [Aventura](https://commercialappliancerepair.center/locations/south-florida/aventura/) - [Sunny Isles Beach](https://commercialappliancerepair.center/locations/south-florida/sunny-isles-beach/) - [Bal Harbour](https://commercialappliancerepair.center/locations/south-florida/bal-harbour/) - [Miami Beach](https://commercialappliancerepair.center/locations/south-florida/miami-beach/) - [Golden Beach](https://commercialappliancerepair.center/locations/south-florida/golden-beach/) - [Weston](https://commercialappliancerepair.center/locations/south-florida/weston/) - [Boca Raton](https://commercialappliancerepair.center/locations/south-florida/boca-raton/) - [Palm Beach](https://commercialappliancerepair.center/locations/south-florida/palm-beach/) [New York Metro](https://commercialappliancerepair.center/locations/new-york/) NY · 75 areas - [Upper East Side](https://commercialappliancerepair.center/locations/new-york/upper-east-side/) - [Upper West Side](https://commercialappliancerepair.center/locations/new-york/upper-west-side/) - [Tribeca](https://commercialappliancerepair.center/locations/new-york/tribeca/) - [SoHo](https://commercialappliancerepair.center/locations/new-york/soho/) - [Greenwich Village](https://commercialappliancerepair.center/locations/new-york/greenwich-village/) - [Battery Park City](https://commercialappliancerepair.center/locations/new-york/battery-park-city/) - [Brooklyn Heights](https://commercialappliancerepair.center/locations/new-york/brooklyn-heights/) - [Park Slope](https://commercialappliancerepair.center/locations/new-york/park-slope/) - [DUMBO](https://commercialappliancerepair.center/locations/new-york/dumbo/) - [Forest Hills](https://commercialappliancerepair.center/locations/new-york/forest-hills/) - [Great Neck](https://commercialappliancerepair.center/locations/new-york/great-neck/) - [Southampton](https://commercialappliancerepair.center/locations/new-york/southampton/) - [Scarsdale](https://commercialappliancerepair.center/locations/new-york/scarsdale/) [Houston](https://commercialappliancerepair.center/locations/houston/) TX · 36 areas - [River Oaks](https://commercialappliancerepair.center/locations/houston/river-oaks/) - [Memorial](https://commercialappliancerepair.center/locations/houston/memorial/) - [Tanglewood](https://commercialappliancerepair.center/locations/houston/tanglewood/) - [Greater Heights](https://commercialappliancerepair.center/locations/houston/greater-heights/) - [Kingwood](https://commercialappliancerepair.center/locations/houston/kingwood/) - [Bellaire](https://commercialappliancerepair.center/locations/houston/bellaire/) - [Bunker Hill Village](https://commercialappliancerepair.center/locations/houston/bunker-hill-village/) - [Piney Point Village](https://commercialappliancerepair.center/locations/houston/piney-point-village/) - [Hunters Creek Village](https://commercialappliancerepair.center/locations/houston/hunters-creek-village/) - [Sugar Land](https://commercialappliancerepair.center/locations/houston/sugar-land/) - [Cinco Ranch](https://commercialappliancerepair.center/locations/houston/cinco-ranch/) - [The Woodlands](https://commercialappliancerepair.center/locations/houston/the-woodlands/) - [West University](https://commercialappliancerepair.center/locations/houston/west-university/) [Chicago](https://commercialappliancerepair.center/locations/chicagoland/) IL · 50 areas - [Lincoln Park](https://commercialappliancerepair.center/locations/chicagoland/lincoln-park/) - [Near North Side](https://commercialappliancerepair.center/locations/chicagoland/near-north-side/) - [West Loop / Near West Side](https://commercialappliancerepair.center/locations/chicagoland/west-loop-near-west-side/) - [Wilmette](https://commercialappliancerepair.center/locations/chicagoland/wilmette/) - [Winnetka](https://commercialappliancerepair.center/locations/chicagoland/winnetka/) - [Glencoe](https://commercialappliancerepair.center/locations/chicagoland/glencoe/) - [River Forest](https://commercialappliancerepair.center/locations/chicagoland/river-forest/) - [Oak Park](https://commercialappliancerepair.center/locations/chicagoland/oak-park/) - [Hinsdale](https://commercialappliancerepair.center/locations/chicagoland/hinsdale/) - [Lake Forest](https://commercialappliancerepair.center/locations/chicagoland/lake-forest/) - [Highland Park](https://commercialappliancerepair.center/locations/chicagoland/highland-park/) - [Gold Coast](https://commercialappliancerepair.center/locations/chicagoland/gold-coast/) - [Lakeview](https://commercialappliancerepair.center/locations/chicagoland/lakeview/) [Los Angeles](https://commercialappliancerepair.center/locations/los-angeles/) CA · 95 areas - [Beverly Hills](https://commercialappliancerepair.center/locations/los-angeles/beverly-hills/) - [Bel Air](https://commercialappliancerepair.center/locations/los-angeles/bel-air/) - [Holmby Hills](https://commercialappliancerepair.center/locations/los-angeles/holmby-hills/) - [Brentwood](https://commercialappliancerepair.center/locations/los-angeles/brentwood/) - [Pacific Palisades](https://commercialappliancerepair.center/locations/los-angeles/pacific-palisades/) - [Santa Monica](https://commercialappliancerepair.center/locations/los-angeles/santa-monica/) - [Hancock Park](https://commercialappliancerepair.center/locations/los-angeles/hancock-park/) - [Studio City](https://commercialappliancerepair.center/locations/los-angeles/studio-city/) - [Calabasas](https://commercialappliancerepair.center/locations/los-angeles/calabasas/) - [Manhattan Beach](https://commercialappliancerepair.center/locations/los-angeles/manhattan-beach/) - [Palos Verdes Estates](https://commercialappliancerepair.center/locations/los-angeles/palos-verdes-estates/) - [Pasadena](https://commercialappliancerepair.center/locations/los-angeles/pasadena/) - [San Marino](https://commercialappliancerepair.center/locations/los-angeles/san-marino/) - [Malibu](https://commercialappliancerepair.center/locations/los-angeles/malibu/) [San Diego](https://commercialappliancerepair.center/locations/san-diego/) CA · 31 areas - [La Jolla](https://commercialappliancerepair.center/locations/san-diego/la-jolla/) - [Carmel Valley](https://commercialappliancerepair.center/locations/san-diego/carmel-valley/) - [Point Loma](https://commercialappliancerepair.center/locations/san-diego/point-loma/) - [Del Mar](https://commercialappliancerepair.center/locations/san-diego/del-mar/) - [Rancho Santa Fe](https://commercialappliancerepair.center/locations/san-diego/rancho-santa-fe/) - [Coronado](https://commercialappliancerepair.center/locations/san-diego/coronado/) - [Encinitas](https://commercialappliancerepair.center/locations/san-diego/encinitas/) - [Solana Beach](https://commercialappliancerepair.center/locations/san-diego/solana-beach/) [San Francisco Bay Area](https://commercialappliancerepair.center/locations/bay-area/) CA · 74 areas - [Pacific Heights](https://commercialappliancerepair.center/locations/bay-area/pacific-heights/) - [Presidio Heights](https://commercialappliancerepair.center/locations/bay-area/presidio-heights/) - [Russian Hill](https://commercialappliancerepair.center/locations/bay-area/russian-hill/) - [Noe Valley](https://commercialappliancerepair.center/locations/bay-area/noe-valley/) - [Sea Cliff](https://commercialappliancerepair.center/locations/bay-area/sea-cliff/) - [Hillsborough](https://commercialappliancerepair.center/locations/bay-area/hillsborough/) - [Atherton](https://commercialappliancerepair.center/locations/bay-area/atherton/) - [Woodside](https://commercialappliancerepair.center/locations/bay-area/woodside/) - [Palo Alto](https://commercialappliancerepair.center/locations/bay-area/palo-alto/) - [Los Altos Hills](https://commercialappliancerepair.center/locations/bay-area/los-altos-hills/) - [Tiburon](https://commercialappliancerepair.center/locations/bay-area/tiburon/) - [Piedmont](https://commercialappliancerepair.center/locations/bay-area/piedmont/) - [Marina](https://commercialappliancerepair.center/locations/bay-area/marina/) For the heart of your home. ## Questions about uLi. ### Can I clear uLi myself? Make sure the unit is on its own dedicated outlet, with no extension cord. If it comes back, it needs a visit. ### Why does my Delfield show uLi when the fryers heat up? Heavy loads starting on shared wiring can pull the voltage down. A dedicated circuit for the cold equipment is the usual answer. ### Is uLi the same as uLo on a Delfield? Yes. The reach-in manual spells it uLi and the prep table manual uLo; both mean line voltage under 96 volts. ### Can I use an extension cord for my Delfield? Delfield calls for a dedicated circuit sized for the unit, and a long cord drops voltage. Plug it straight into the wall. --- **[Read on the site: Delfield uLi: line voltage is below 96 volts](https://commercialappliancerepair.center/error-codes/delfield-uli/)** **[Book a visit with CommercialApplianceRepair.center](https://commercialappliancerepair.center/schedule/)**