--- title: "Hoshizaki 6 beeps: supply voltage too low" description: "What 6 beeps means on Hoshizaki 6 beeps: supply voltage too lows, what to check before booking, and when it is not a failure at all." url: "https://icemachinerepair.center/error-codes/hoshizaki-6-beeps/" --- # Hoshizaki 6 beeps: supply voltage too low Hoshizaki boards protect the unit from low voltage. ## What 6 beeps actually means. Hoshizaki boards protect the unit from low voltage. When the supply falls to roughly 92 volts, the board stops the unit, sounds six beeps, and turns its power LED off. It resets itself once voltage is back to normal. Long extension cords, overloaded circuits and utility sags are the usual causes. Hoshizaki ice machine display What to do when 6 beeps shows on the ice machine ### Kind of code Control board and power The board lost track of itself or of its power: a voltage too low or too high at startup, a relay that no longer closes, a keypad or display that stays dark, or a memory error after a surge. Switching off at the machine's own switch for a minute clears a passing glitch. A code that returns, a breaker that trips, or any hot or burning smell means the power stays off and the board, the wiring and the relays are left to a technician. ### Usually leads to Ice machine control board repair The controller, its display, the sensors it reads and their wiring, tested when a code, a blinking light or a dead machine points there. ### Shows up as Ice Machine Error Code or Flashing Light: What It Is Telling You An ice machine error code may show as a number on a small display, a pattern of blinking lights on the control board, a colored light on the front, or a machine that stops with one indicator flashing. ### Make Hoshizaki On a Hoshizaki ice machine, the technician notes every alarm signal and checks the water and condenser before pricing any part. ### Source Hoshizaki KM-231BAJ and KM-301BAJ/BWJ self-contained crescent cuber service manual, No. 73238 (archived copy of hoshizakiamerica.com) KM crescent cubers, both self-contained (KM-231, KM-301) and modular (KM-350 to KM-660), repeat the beep pattern from the control board inside the unit. DCM cubelet icemaker/dispensers (DCM-300, 500, 751, 752) repeat the beeps every five seconds and also light an orange ALARM LED; their beep list differs from the KM list. ## Before you book, in this order. Each step comes from Hoshizaki's own guidance for 6 beeps on its ice machines. Follow it to the end: the last card says whether this is a visit. 01 Check that the unit is plugged straight into its own outlet, not an extension cord. 02 Note whether lights dim or other equipment stops at the same moment. 03 If six beeps keep returning, have an electrician check the circuit and book a visit for the unit. ### Still there? It usually turns into [ice machine control board repair](https://icemachinerepair.center/services/ice-machine-control-board-repair/). Book with the code and the model number. ### What not to do Six beeps do not mean the board has failed; it is protecting itself. The alarm is not about the compressor, though low voltage is hard on it. ## What you may notice with it. The ice machine problems 6 beeps tends to arrive with. Answer these at the ice machine before anyone is booked. [All problems](https://icemachinerepair.center/problems/) Before you call ### [Ice Machine Error Code or Flashing Light: What It Is Telling You](https://icemachinerepair.center/problems/ice-machine-error-code/) [All 7 causes, cheapest first](https://icemachinerepair.center/problems/ice-machine-error-code/) It also comes with - [**Ice Machine Running but Not Making Ice**](https://icemachinerepair.center/problems/ice-machine-not-making-ice/) - [**Ice Machine Tripping the Breaker or Blowing a Fuse**](https://icemachinerepair.center/problems/ice-machine-tripping-breaker/) Problem ### Ice Machine Error Code or Flashing Light: What It Is Telling You 7 causes, cheapest first Where 6 beeps usually leads ## Ice machine control board repair. **Control board, display, transformer, thermistors and harness · moderate to highest.** Book a visit [What the job involves](https://icemachinerepair.center/services/ice-machine-control-board-repair/) ## Hoshizaki ice machines. On a Hoshizaki ice machine, the technician notes every alarm signal and checks the water and condenser before pricing any part. [Hoshizaki ice machine repair](https://icemachinerepair.center/brands/hoshizaki/) More Hoshizaki codes [1 beep](https://icemachinerepair.center/error-codes/hoshizaki-1-beep/) [2 beeps](https://icemachinerepair.center/error-codes/hoshizaki-2-beeps/) [3 beeps](https://icemachinerepair.center/error-codes/hoshizaki-3-beeps/) [4 beeps](https://icemachinerepair.center/error-codes/hoshizaki-4-beeps/) [5 beeps](https://icemachinerepair.center/error-codes/hoshizaki-5-beeps/) [7 beeps](https://icemachinerepair.center/error-codes/hoshizaki-7-beeps/) [8 beeps](https://icemachinerepair.center/error-codes/hoshizaki-8-beeps/) Control board and power on other makes [Blue Air E7](https://icemachinerepair.center/error-codes/blue-air-e7/) [KitchenAid Service light](https://icemachinerepair.center/error-codes/kitchenaid-service-light/) [Manitowoc E03](https://icemachinerepair.center/error-codes/manitowoc-e03/) [Marvel All indicators flashing](https://icemachinerepair.center/error-codes/marvel-all-indicators-flashing/) [Monogram Different lights flashing](https://icemachinerepair.center/error-codes/monogram-different-lights-flashing/) [Scotsman E](https://icemachinerepair.center/error-codes/scotsman-e/) [True Residential E30](https://icemachinerepair.center/error-codes/true-e30/) [Whirlpool Service light](https://icemachinerepair.center/error-codes/whirlpool-service-light/) [All 10 codes of this kind](https://icemachinerepair.center/error-codes/#family-board) Hoshizaki builds this ### Modular ice machine An ice-making head set on top of a separate storage bin or drink dispenser, cooled by air, water or a condenser on the roof, turning out hundreds of pounds of cubes a day. Hoshizaki builds this ### Undercounter ice machine A self-contained ice machine that makes and stores its own ice under a bar, a service counter or a kitchen island, from commercial units to clear-ice models in large homes. Hoshizaki builds this ### Nugget ice machine An ice machine that freezes a thin layer inside a chilled cylinder and pushes it out with an auger as soft, chewable nuggets, for clinics, offices, hotels and large homes. ## In Hoshizaki's own words > (92Vac±5% or less) [Hoshizaki KM-231BAJ and KM-301BAJ/BWJ self-contained crescent cuber service manual, No. 73238 (archived copy of hoshizakiamerica.com)](http://web.archive.org/web/20260612180106/https://secure.hoshizakiamerica.com/docs/manuals/KM-231_301B_J_serv.pdf) [Hoshizaki KM-231BAJ and KM-301BAJ/BWJ self-contained crescent cuber service manual, No. 73238 (archived copy of hoshizakiamerica.com)](http://web.archive.org/web/20260612180106/https://secure.hoshizakiamerica.com/docs/manuals/KM-231_301B_J_serv.pdf) [Hoshizaki KM-231BAJ and KM-301BAJ/BWJ self-contained crescent cuber service manual, No. 73238 (archived copy of hoshizakiamerica.com)](http://web.archive.org/web/20260612180106/https://secure.hoshizakiamerica.com/docs/manuals/KM-231_301B_J_serv.pdf) Every code on this site is taken from the manufacturer's documentation, never from a forum or a parts listing. KM crescent cubers, both self-contained (KM-231, KM-301) and modular (KM-350 to KM-660), repeat the beep pattern from the control board inside the unit. DCM cubelet icemaker/dispensers (DCM-300, 500, 751, 752) repeat the beeps every five seconds and also light an orange ALARM LED; their beep list differs from the KM list. ## Hoshizaki 6 beeps ice machine 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://icemachinerepair.center/locations/) [Tampa Bay](https://icemachinerepair.center/locations/tampa-bay/) FL · 31 areas - [Hyde Park](https://icemachinerepair.center/locations/tampa-bay/hyde-park/) - [Davis Islands](https://icemachinerepair.center/locations/tampa-bay/davis-islands/) - [Palma Ceia](https://icemachinerepair.center/locations/tampa-bay/palma-ceia/) - [Westchase](https://icemachinerepair.center/locations/tampa-bay/westchase/) - [Carrollwood](https://icemachinerepair.center/locations/tampa-bay/carrollwood/) - [Belleair](https://icemachinerepair.center/locations/tampa-bay/belleair/) - [St. Pete Beach](https://icemachinerepair.center/locations/tampa-bay/st-pete-beach/) - [Palm Harbor](https://icemachinerepair.center/locations/tampa-bay/palm-harbor/) [Orlando](https://icemachinerepair.center/locations/orlando/) FL · 30 areas - [Winter Park](https://icemachinerepair.center/locations/orlando/winter-park/) - [Windermere](https://icemachinerepair.center/locations/orlando/windermere/) - [Dr. Phillips](https://icemachinerepair.center/locations/orlando/dr-phillips/) - [Bay Hill](https://icemachinerepair.center/locations/orlando/bay-hill/) - [Lake Nona](https://icemachinerepair.center/locations/orlando/lake-nona/) - [Heathrow](https://icemachinerepair.center/locations/orlando/heathrow/) - [Celebration](https://icemachinerepair.center/locations/orlando/celebration/) [Miami / South Florida](https://icemachinerepair.center/locations/south-florida/) FL · 47 areas - [Brickell](https://icemachinerepair.center/locations/south-florida/brickell/) - [Coconut Grove](https://icemachinerepair.center/locations/south-florida/coconut-grove/) - [Coral Gables](https://icemachinerepair.center/locations/south-florida/coral-gables/) - [Pinecrest](https://icemachinerepair.center/locations/south-florida/pinecrest/) - [Key Biscayne](https://icemachinerepair.center/locations/south-florida/key-biscayne/) - [Aventura](https://icemachinerepair.center/locations/south-florida/aventura/) - [Sunny Isles Beach](https://icemachinerepair.center/locations/south-florida/sunny-isles-beach/) - [Bal Harbour](https://icemachinerepair.center/locations/south-florida/bal-harbour/) - [Miami Beach](https://icemachinerepair.center/locations/south-florida/miami-beach/) - [Golden Beach](https://icemachinerepair.center/locations/south-florida/golden-beach/) - [Weston](https://icemachinerepair.center/locations/south-florida/weston/) - [Boca Raton](https://icemachinerepair.center/locations/south-florida/boca-raton/) - [Palm Beach](https://icemachinerepair.center/locations/south-florida/palm-beach/) [New York Metro](https://icemachinerepair.center/locations/new-york/) NY · 75 areas - [Upper East Side](https://icemachinerepair.center/locations/new-york/upper-east-side/) - [Upper West Side](https://icemachinerepair.center/locations/new-york/upper-west-side/) - [Tribeca](https://icemachinerepair.center/locations/new-york/tribeca/) - [SoHo](https://icemachinerepair.center/locations/new-york/soho/) - [Greenwich Village](https://icemachinerepair.center/locations/new-york/greenwich-village/) - [Battery Park City](https://icemachinerepair.center/locations/new-york/battery-park-city/) - [Brooklyn Heights](https://icemachinerepair.center/locations/new-york/brooklyn-heights/) - [Park Slope](https://icemachinerepair.center/locations/new-york/park-slope/) - [DUMBO](https://icemachinerepair.center/locations/new-york/dumbo/) - [Forest Hills](https://icemachinerepair.center/locations/new-york/forest-hills/) - [Great Neck](https://icemachinerepair.center/locations/new-york/great-neck/) - [Southampton](https://icemachinerepair.center/locations/new-york/southampton/) - [Scarsdale](https://icemachinerepair.center/locations/new-york/scarsdale/) [Houston](https://icemachinerepair.center/locations/houston/) TX · 36 areas - [River Oaks](https://icemachinerepair.center/locations/houston/river-oaks/) - [Memorial](https://icemachinerepair.center/locations/houston/memorial/) - [Tanglewood](https://icemachinerepair.center/locations/houston/tanglewood/) - [Greater Heights](https://icemachinerepair.center/locations/houston/greater-heights/) - [Kingwood](https://icemachinerepair.center/locations/houston/kingwood/) - [Bellaire](https://icemachinerepair.center/locations/houston/bellaire/) - [Bunker Hill Village](https://icemachinerepair.center/locations/houston/bunker-hill-village/) - [Piney Point Village](https://icemachinerepair.center/locations/houston/piney-point-village/) - [Hunters Creek Village](https://icemachinerepair.center/locations/houston/hunters-creek-village/) - [Sugar Land](https://icemachinerepair.center/locations/houston/sugar-land/) - [Cinco Ranch](https://icemachinerepair.center/locations/houston/cinco-ranch/) - [The Woodlands](https://icemachinerepair.center/locations/houston/the-woodlands/) - [West University](https://icemachinerepair.center/locations/houston/west-university/) [Chicago](https://icemachinerepair.center/locations/chicagoland/) IL · 50 areas - [Lincoln Park](https://icemachinerepair.center/locations/chicagoland/lincoln-park/) - [Near North Side](https://icemachinerepair.center/locations/chicagoland/near-north-side/) - [West Loop / Near West Side](https://icemachinerepair.center/locations/chicagoland/west-loop-near-west-side/) - [Wilmette](https://icemachinerepair.center/locations/chicagoland/wilmette/) - [Winnetka](https://icemachinerepair.center/locations/chicagoland/winnetka/) - [Glencoe](https://icemachinerepair.center/locations/chicagoland/glencoe/) - [River Forest](https://icemachinerepair.center/locations/chicagoland/river-forest/) - [Oak Park](https://icemachinerepair.center/locations/chicagoland/oak-park/) - [Hinsdale](https://icemachinerepair.center/locations/chicagoland/hinsdale/) - [Lake Forest](https://icemachinerepair.center/locations/chicagoland/lake-forest/) - [Highland Park](https://icemachinerepair.center/locations/chicagoland/highland-park/) - [Gold Coast](https://icemachinerepair.center/locations/chicagoland/gold-coast/) - [Lakeview](https://icemachinerepair.center/locations/chicagoland/lakeview/) [Los Angeles](https://icemachinerepair.center/locations/los-angeles/) CA · 95 areas - [Beverly Hills](https://icemachinerepair.center/locations/los-angeles/beverly-hills/) - [Bel Air](https://icemachinerepair.center/locations/los-angeles/bel-air/) - [Holmby Hills](https://icemachinerepair.center/locations/los-angeles/holmby-hills/) - [Brentwood](https://icemachinerepair.center/locations/los-angeles/brentwood/) - [Pacific Palisades](https://icemachinerepair.center/locations/los-angeles/pacific-palisades/) - [Santa Monica](https://icemachinerepair.center/locations/los-angeles/santa-monica/) - [Hancock Park](https://icemachinerepair.center/locations/los-angeles/hancock-park/) - [Studio City](https://icemachinerepair.center/locations/los-angeles/studio-city/) - [Calabasas](https://icemachinerepair.center/locations/los-angeles/calabasas/) - [Manhattan Beach](https://icemachinerepair.center/locations/los-angeles/manhattan-beach/) - [Palos Verdes Estates](https://icemachinerepair.center/locations/los-angeles/palos-verdes-estates/) - [Pasadena](https://icemachinerepair.center/locations/los-angeles/pasadena/) - [San Marino](https://icemachinerepair.center/locations/los-angeles/san-marino/) - [Malibu](https://icemachinerepair.center/locations/los-angeles/malibu/) [San Diego](https://icemachinerepair.center/locations/san-diego/) CA · 31 areas - [La Jolla](https://icemachinerepair.center/locations/san-diego/la-jolla/) - [Carmel Valley](https://icemachinerepair.center/locations/san-diego/carmel-valley/) - [Point Loma](https://icemachinerepair.center/locations/san-diego/point-loma/) - [Del Mar](https://icemachinerepair.center/locations/san-diego/del-mar/) - [Rancho Santa Fe](https://icemachinerepair.center/locations/san-diego/rancho-santa-fe/) - [Coronado](https://icemachinerepair.center/locations/san-diego/coronado/) - [Encinitas](https://icemachinerepair.center/locations/san-diego/encinitas/) - [Solana Beach](https://icemachinerepair.center/locations/san-diego/solana-beach/) [San Francisco Bay Area](https://icemachinerepair.center/locations/bay-area/) CA · 74 areas - [Pacific Heights](https://icemachinerepair.center/locations/bay-area/pacific-heights/) - [Presidio Heights](https://icemachinerepair.center/locations/bay-area/presidio-heights/) - [Russian Hill](https://icemachinerepair.center/locations/bay-area/russian-hill/) - [Noe Valley](https://icemachinerepair.center/locations/bay-area/noe-valley/) - [Sea Cliff](https://icemachinerepair.center/locations/bay-area/sea-cliff/) - [Hillsborough](https://icemachinerepair.center/locations/bay-area/hillsborough/) - [Atherton](https://icemachinerepair.center/locations/bay-area/atherton/) - [Woodside](https://icemachinerepair.center/locations/bay-area/woodside/) - [Palo Alto](https://icemachinerepair.center/locations/bay-area/palo-alto/) - [Los Altos Hills](https://icemachinerepair.center/locations/bay-area/los-altos-hills/) - [Tiburon](https://icemachinerepair.center/locations/bay-area/tiburon/) - [Piedmont](https://icemachinerepair.center/locations/bay-area/piedmont/) - [Marina](https://icemachinerepair.center/locations/bay-area/marina/) For the heart of your home. ## Questions about 6 beeps. ### Can I clear 6 beeps myself? Check that the unit is plugged straight into its own outlet, not an extension cord. If it comes back, it needs a visit. ### Why does my Hoshizaki beep six times when the walk-in cooler starts? A large motor starting on the same circuit can pull voltage down. The board sees the dip and stops to protect itself. ### Do I need to reset my Hoshizaki after 6 beeps? No. Hoshizaki says voltage safeties reset themselves once voltage is corrected. ### Why is the power LED off on my Hoshizaki during 6 beeps? The board turns it off when voltage protection operates. It comes back on when voltage recovers. --- **[Read on the site: Hoshizaki 6 beeps: supply voltage too low](https://icemachinerepair.center/error-codes/hoshizaki-6-beeps/)** **[Book a visit with IceMachineRepair.center](https://icemachinerepair.center/schedule/)**