--- title: "Hoshizaki 2 beeps: harvest ran over 20 minutes twice" description: "What 2 beeps means on Hoshizaki 2 beeps: harvest ran over 20 minutes twices, what to check before booking, and when it is not a failure at all." url: "https://icemachinerepair.center/error-codes/hoshizaki-2-beeps/" --- # Hoshizaki 2 beeps: harvest ran over 20 minutes twice A KM harvest normally ends when the evaporator thermistor senses that the plate has warmed and the ice has released. ## What 2 beeps actually means. A KM harvest normally ends when the evaporator thermistor senses that the plate has warmed and the ice has released. If harvest lasts more than 20 minutes two cycles running, the board locks out with two beeps. Hoshizaki's list: an open thermistor, a hot gas valve that does not open, an expansion or liquid line valve leaking by, low charge, a weak compressor, or a water regulating valve leaking by. Hoshizaki ice machine display What to do when 2 beeps shows on the ice machine ### Kind of code Harvest and freeze cycle A freeze ran longer than the board allows, or a harvest started and the ice never fell. Scale on the evaporator holds the sheet to the plate, a thickness probe crusted with minerals never signals, a hot gas valve that does not open leaves the plate cold, a harvest assist that does not push, or a water curtain that swings without tripping its switch all end in this family. A cleaning cycle run by the manual often clears it; a valve or a probe is a technician's job. ### Usually leads to Ice machine harvest repair The hot gas valve, harvest assist, curtain switch and thickness probe that decide when a sheet of cubes is done and make it drop. ### 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 2 beeps on its ice machines. Follow it to the end: the last card says whether this is a visit. 01 Count the beeps: two in a row means this alarm on a KM. 02 Check that the room is not unusually cold and that nothing blocks the air around the unit. 03 Book a visit; the causes are on the cooling side and the reset is on the board. ### Still there? It usually turns into [ice machine harvest repair](https://icemachinerepair.center/services/ice-machine-harvest-repair/). Book with the code and the model number. ### What not to do On a DCM cubelet dispenser, two beeps mean the control switch was left in DRAIN too long. On a KM it is not a water shortage; the fill is checked separately. ## What you may notice with it. The ice machine problems 2 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 Not Harvesting: Ice Stays Stuck on the Plate**](https://icemachinerepair.center/problems/ice-machine-not-harvesting/) - [**Ice Machine Running but Not Making Ice**](https://icemachinerepair.center/problems/ice-machine-not-making-ice/) Problem ### Ice Machine Error Code or Flashing Light: What It Is Telling You 7 causes, cheapest first Where 2 beeps usually leads ## Ice machine harvest repair. **Thickness probe, curtain switch, harvest assist and hot gas valve · low to moderate.** Book a visit [What the job involves](https://icemachinerepair.center/services/ice-machine-harvest-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/) [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/) [6 beeps](https://icemachinerepair.center/error-codes/hoshizaki-6-beeps/) [7 beeps](https://icemachinerepair.center/error-codes/hoshizaki-7-beeps/) [8 beeps](https://icemachinerepair.center/error-codes/hoshizaki-8-beeps/) Harvest and freeze cycle on other makes [Atosa E2](https://icemachinerepair.center/error-codes/atosa-e2/) [Blue Air E1](https://icemachinerepair.center/error-codes/blue-air-e1/) [Follett HI AMPS](https://icemachinerepair.center/error-codes/follett-hi-amps/) [Ice-O-Matic Error 1](https://icemachinerepair.center/error-codes/ice-o-matic-error-1/) [Koolaire SL#1](https://icemachinerepair.center/error-codes/koolaire-sl1/) [Manitowoc E01](https://icemachinerepair.center/error-codes/manitowoc-e01/) [Scotsman 1](https://icemachinerepair.center/error-codes/scotsman-1/) [Sub-Zero ICE flashing](https://icemachinerepair.center/error-codes/sub-zero-ice-flashing/) [All 24 codes of this kind](https://icemachinerepair.center/error-codes/#family-harvest) 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 > Harvest Backup Timer [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 2 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. 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Count the beeps: two in a row means this alarm on a KM. If it comes back, it needs a visit. ### Why does my Hoshizaki beep twice and stop with ice stuck on the plate? The harvest ran past its 20-minute backup timer twice. The ice not releasing points to the hot gas side or the thermistor. ### Does descaling fix the 2-beep alarm on a Hoshizaki? Scale is not on Hoshizaki's list for this alarm, which points to thermistor and cooling-side parts. Cleaning is still worth keeping current. ### On my Hoshizaki dispenser, two beeps stopped after I moved a switch. Why? On DCM dispensers two beeps mean the control switch sat in DRAIN too long; moving it back to ICE clears it. --- **[Read on the site: Hoshizaki 2 beeps: harvest ran over 20 minutes twice](https://icemachinerepair.center/error-codes/hoshizaki-2-beeps/)** **[Book a visit with IceMachineRepair.center](https://icemachinerepair.center/schedule/)**