Hoshizaki 1 beep: evaporator overheated during harvest
A thermistor on the suction line watches harvest.
Mon–Sat, 8am–8pm
- Harvest and freeze cycle
- Ice machine harvest repair
- Source: Hoshizaki
Book a visit
Three short steps, about a minute.
or call (844) 410-9163
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What 1 beep
actually means.
A thermistor on the suction line watches harvest. If it reaches 127 °F, the KM control board stops the machine, sounds one beep, and waits for a manual reset. Hoshizaki names a hot gas valve or relay stuck on, hot water reaching the inlet, a stuck headmaster on a remote unit, or a shorted thermistor as the causes. Hot water migration usually comes from a mixing valve elsewhere in the building's plumbing.
Hoshizaki ice machine display
What to do when 1 beep shows on the ice machineKind of codeHarvest 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 toIce 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 asIce 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.
MakeHoshizaki
On a Hoshizaki ice machine, the technician notes every alarm signal and checks the water and condenser before pricing any part.
SourceHoshizaki America Training and FAQs page, KM cuber FAQs
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 1 beep on its ice machines. Follow it to the end: the last card says whether this is a visit.
Count the beeps carefully; one beep on a KM means this lockout.
Feel the water line feeding the ice machine; if it is warm, tell whoever handles your plumbing, because a mixing valve may be sending hot water back.
Leave the unit off and book a visit; the reset button is on the board behind live terminals.
Still there?
It usually turns into ice machine harvest repair. Book with the code and the model number.
What not to do
On a DCM cubelet dispenser, one beep means something else: low water, which resets itself when water returns. On a KM, one beep does not mean a slow freeze; that is three beeps.
What you may
notice with it.
The ice machine problems 1 beep tends to arrive with. Answer these at the ice machine before anyone is booked.
All problems
Where 1 beep usually leads
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 repairMore Hoshizaki codes
Harvest and freeze cycle on other makes
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.
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.
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
When the machine beeps once every 3 seconds it indicates the HIGH TEMPERATURE SAFETY switch has been triggered.
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 1 beep 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 areasTampa BayFL · 31 areas
Miami / South FloridaFL · 47 areas
New York MetroNY · 75 areas
HoustonTX · 36 areas
ChicagoIL · 50 areas
Los AngelesCA · 95 areas
San DiegoCA · 31 areas
Questions
about 1 beep.
Can I clear 1 beep myself?
Why does my Hoshizaki beep once overnight but run fine after a reset?
Can I reset the 1-beep alarm on my Hoshizaki myself?
Is one beep on a Hoshizaki dispenser the same as on a cuber?
Back to your everyday
Still showing 1 beep?
A booking with a code goes further when it carries the light or code copied as it appeared, the model and serial off the data plate, and a word on whether cubes still fall into the bin. With those three in hand, our office can match the probable part to your machine the same afternoon.