Hoshizaki Reference · Beep Codes 1-9 + EverCheck E-1 through E-6
Hoshizaki Error Codes Reference — Same Day LA
Beeping? Count the beeps (1-9). Or read the EverCheck LCD: E-1 low water, E-2 high temp, E-3 long freeze, E-4 long harvest, E-5 thermistor, E-6 compressor. (424) 325-0520
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Hoshizaki error code reference
Hoshizaki EverCheck displays six LCD codes — E-1 through E-6 — each pointing at a specific component category.
Hoshizaki commercial ice machines (KM-Edge cube, F-Series flake, DCM Cubelet, FS Sliver Nugget) use the EverCheck diagnostic system to display alphanumeric codes on the control board LCD. The convention runs E-1 through E-6, and each code points at a specific failure category. Reading the code correctly the first time cuts diagnostic time 30 to 50% versus blind troubleshooting. Our techs at Same Day Appliance Repair carry brand-specific service manuals for KM-Edge, F-Series, and DCM Cubelet so the same EverCheck code is interpreted correctly against the right architecture — the EverCheck convention is consistent across product lines, but the underlying component differs (cube cell-and-curtain on KM-Edge vs auger-drum on F-Series and DCM).
Across LA County, our Hoshizaki error code calls come from a predictable mix of operations: sushi restaurants on Sawtelle and in Little Tokyo where F-Series E-3 long freeze indicates seasonal refrigerant loss, hotel banquet ice rooms in DTLA (Marriott, Hilton, Hyatt corporate accounts) where KM-1340MAJ E-2 high temperature points at kitchen alcove ventilation, bars on Sunset Strip with KM-650MAJ E-4 long harvest from cell sensor drift, and hospital cafeterias with DCM Cubelet showing E-1 low water from overdue filter replacement. Reading the EverCheck code first lets us route the diagnostic to the right component category before opening the cabinet.
$120 commercial diagnostic, waived with repair. BHGS #A49573 + EPA 608 Universal #1346255700410 for sealed-system work. Hoshizaki America Peachtree City parts network access with 4 to 7 day standard ship and 1 to 3 day expedite available. Common KM-Edge parts on the truck for first-visit completion on most EverCheck-code calls.
Beeping alarm codes
Why is my Hoshizaki beeping? Count the beeps.
A beeping Hoshizaki is the machine's self-diagnostic safety telling you it detected a problem and shut itself down to protect the compressor and pump. On most Hoshizaki units in the field — KM cube machines and F/FD flakers built for the U.S. market — the fault is signaled as a repeating beep count from 1 to 9, not an LCD code. Count the beeps in the group (they repeat every few seconds), and the number tells you the category. This is a separate diagnostic layer from the EverCheck LCD "E-" codes below: EverCheck-equipped models show an E-1 through E-6 code on a display, while the large installed base of KM and flaker units instead beeps. If yours is beeping with no LCD code showing, use this table.
- 1 beep — High-temperature safety. The suction/evaporator thermistor sensed high temperature — often hot water plumbed to the unit, or a hot kitchen alcove. Operator checks: confirm cold water supply, clean the air filter, clean the condenser.
- 2 beeps — Long harvest. Harvest ran long twice in a row and the unit stopped. Usually scale on the evaporator, a curtain or float issue, or a hot-gas valve — technician territory beyond a cleaning.
- 3 beeps — Long freeze. The freeze cycle exceeded its backup time twice; commonly a stuck float switch or water valve. Confirm the water supply is on; the float or valve itself is a technician fix.
- 4 beeps — Shorted bin-control (K4) wiring and 5 beeps — Open bin-control (K4) wiring. Only on older units fitted with a mechanical bin control. Technician diagnosis.
- 6 beeps — Low voltage (supply below roughly 92 V). Self-clears when voltage recovers. Operator check: the breaker, and that the machine is on its own correctly-sized circuit.
- 7 beeps — High voltage (supply above roughly 147 V). The unit shuts down to protect itself — an electrical-supply problem, not the machine.
- 8 beeps — Gear-motor relay. The compressor or gear-motor relay dropped out. A power-cycle may reset it; if it returns, it's a technician fix.
- 9 beeps — Bin full. The bin control reads the bin as full and repeats a short beep. Often normal — knock the ice down and power-cycle. If the bin isn't actually full, the bin control needs service.
What you can safely check first (operator level)
Three beep groups have legitimate operator checks before you call. 6 or 7 beeps is a power problem — check the breaker and the circuit. 9 beeps is bin-full — clear some ice and power-cycle. 1, 2, or 3 beeps start with confirming the water supply is on, cleaning the air filter, and cleaning the condenser coil, because scale and a fouled condenser trigger most of them. Stop there. Float switches, water valves, the hot-gas valve, relays, and anything on the sealed refrigeration system are technician work — our techs carry EPA 608 Universal certification for that side.
How to reset — and the beep vs LCD difference
To reset a beeping Hoshizaki, press the RESET button on the control board (behind the front panel, near the indicator light) with the power ON. A manual-reset alarm clears; if it re-alarms immediately, the fault is still present. The board's indicator LEDs light steadily to flag a condition — Hoshizaki U.S. units do not blink an LED a countable number of times, so if you are counting anything, count the beeps, not flashes. Newer EverCheck-equipped models instead show the E-1 through E-6 LCD codes covered below; a given unit either beeps or shows an LCD code, depending on its control platform.
Why a down ice machine is a health-code problem, not just a beep
For a restaurant, bar, or hotel, a beeping ice machine is a revenue and compliance issue, not a nuisance light. Under the FDA Food Code, ice made for drinks and food is itself a food, so a health inspector holds your ice machine to the same "clean to sight and touch" standard (Food Code section 4-601.11) as any food-contact surface — and a unit that keeps cycling into a fault often traces back to scale or a fouled condenser that also raises a sanitation flag. That is why our techs treat a repeating Hoshizaki alarm as same-day priority: $120 commercial diagnostic, waived with the repair.
Code reference
Three reading approaches across the Hoshizaki lineup.
Hoshizaki has standardized the EverCheck system across cube, flake, and Cubelet product lines, but the underlying architecture differs. Our techs at Same Day Appliance Repair identify the line by serial number on the phone before dispatch so the right tools and reference manuals are on the truck.
EverCheck E-1 through E-6 (Full Reference)
The current Hoshizaki convention on KM-Edge cube, F-Series flake, and DCM Cubelet:
- E-1 Low Water / No Water — supply valve closed, filter clogged, or KM-Edge water inlet pump diaphragm failed. Typical repair: filter $80-$180 or pump $340-$540.
- E-2 High Temperature — condenser fouling, fan motor failure on -A units, or ambient over spec. Typical repair: condenser cleaning $245-$385 or fan motor $300-$520.
- E-3 Long Freeze Cycle — refrigerant under-charge, condenser fouling, water inlet restriction. Typical repair: EPA 608 refrigerant work $700-$1,500 or condenser cleaning $245-$385.
- E-4 Long Harvest Cycle — cell sensor drift, hot gas valve, water curtain not seating. Typical repair: cell sensor $200-$340 or hot gas valve $340-$540.
- E-5 Control Thermistor Failure — temperature sensor drift or wiring fault. Typical repair: thermistor $200-$340.
- E-6 Compressor Protection Trip — compressor over-temperature, refrigerant high-pressure, or electrical fault. Typical repair: condenser cleaning $245-$385 or capacitor $185-$385 or compressor replacement $1,400-$2,800.
KM-Edge vs F-Series vs DCM Cubelet — Architecture Differences
EverCheck codes are the same across the product family, but the underlying component category differs by architecture. KM-Edge cube uses cell-and-curtain evaporator with water inlet pump (Hoshizaki-specific component, not a valve like Manitowoc or Scotsman) — E-1 low water on KM-Edge often points at pump diaphragm wear at year 5-8 typical. F-Series flake (F-450MAH through F-2000MWJ) uses auger-driven cylindrical evaporator drum — E-3 long freeze on F-Series often points at auger gear reducer wear (mechanical resistance affects production capacity, year 6-9 typical). DCM Cubelet (DCM-270BAH, DCM-500BAH) shares F-Series-style auger architecture but for chewable Cubelet ice format — E-codes interpreted against this architecture distinction.
EverCheck LCD Reading + Reset Procedure
The EverCheck LCD is mounted on the control board, typically visible behind the front panel or accessible through a service door depending on model. The code displays as E-1 through E-6 as a single character with status indicator. Reset procedure on Hoshizaki: physical power-cycle at the unit's rocker switch or main breaker — wait 60 seconds, restore power, the LCD clears. Hoshizaki uses a physical reset (no touchscreen menu like Manitowoc Indigo NXT). If the underlying fault is still present, the code returns within minutes. Our techs at Same Day Appliance Repair note whether the EverCheck code was intermittent (transient cause) or steady (component failure) because that distinction points at different parts — intermittent E-1 often points at filter or supply valve, steady E-1 often points at water inlet pump.
Repair costs by code
What each EverCheck code typically costs to resolve.
$120 commercial diagnostic, waived with repair. Restoration estimates assume common KM-Edge parts on the truck.
| Code | Typical Repair | Cost Range | Time-to-Restoration |
|---|---|---|---|
| Diagnostic + EverCheck read | — | $120, waived with repair | 30 to 60 min on-site |
| E-1 (filter clog) | Water filter replacement | $80 to $180 | 30 to 60 min, same-day |
| E-1 (water inlet pump KM-Edge) | Water inlet pump replacement | $340 to $540 | 60 to 90 min, same-day |
| E-2 (condenser fouling) | Condenser coil cleaning | $245 to $385 | 60 to 90 min, same-day |
| E-2 (fan motor) | Condenser fan motor (-A units) | $300 to $520 | 60 to 90 min, same-day |
| E-3 (refrigerant leak) | EPA 608 leak repair + recharge | $700 to $1,500 | 3 to 5 hours, usually same-day |
| E-4 (cell sensor) | Cell sensor replacement | $200 to $340 | 60 to 90 min, same-day |
| E-4 (hot gas valve) | Hot gas valve replacement | $340 to $540 | 90 to 120 min, same-day |
| E-5 (thermistor) | Control thermistor replacement | $200 to $340 | 60 to 90 min, same-day |
| E-6 (capacitor) | Compressor capacitor replacement | $185 to $385 | 60 to 90 min, same-day |
| E-6 (compressor) KM-650MAJ | Compressor replacement | $1,400 to $2,200 | Full day, often next-day |
| E-6 (compressor) KM-1340MAJ+ | Compressor replacement | $1,800 to $2,800 | Full day, often next-day |
| Multiple codes (EverCheck board) | EverCheck board replacement | $480 to $820 | 2 to 3 hours, same-day if on truck; otherwise 4-7 day Peachtree City ship |
| F-Series auger gear reducer (E-3 from auger drag) | Gear reducer replacement | $580 to $880 | 2 to 3 hours, same-day if on truck |
| Warranty | — | 90 days parts and labor | — |
FAQ
Hoshizaki error code questions.
Why is my Hoshizaki ice machine beeping?
A beeping Hoshizaki has detected a fault and shut down to protect its compressor and pump. On most U.S. KM cube and F-Series flake units the fault is signaled as a repeating beep count, not an LCD code — count the beeps in the group: 1 beep is a high-temperature alarm, 2 is long harvest, 3 is long freeze, 4 or 5 is bin-control wiring (older mechanical-bin units only), 6 is low voltage, 7 is high voltage, 8 is a gear-motor relay fault, and 9 is bin full. You can safely check the breaker and circuit (6 or 7 beeps), knock the ice down and power-cycle (9 beeps), and confirm the water supply is on plus clean the condenser and air filter (1, 2, or 3 beeps). Press the RESET button on the control board with power on to clear a manual-reset alarm; if it comes back, the fault is still present. $120 commercial diagnostic, waived with repair.
My Hoshizaki is beeping 3 times — what does that mean?
Three beeps is the long-freeze safety: the freeze cycle ran past its backup time twice in a row, so the unit stopped making ice. It's commonly a stuck float switch or water valve, or scale and a fouled condenser slowing the freeze. As the operator, confirm the water supply is fully open and the condenser coil and air filter are clean; if 3 beeps returns after that, the float switch, water valve, or a sealed-system issue needs a technician. For reference, 2 beeps is long harvest and 1 beep is a high-temperature alarm — related symptoms, different root causes. Our techs read the alarm on-site and quote before the visit ends. $120 commercial diagnostic, waived with repair.
What does E-1 mean on my Hoshizaki?
E-1 on a Hoshizaki KM-Edge or F-Series EverCheck LCD means low water or no water at the freeze chamber. Three usual causes in order of frequency: water supply shut off or partially closed at the wall valve (free to check), water filter cartridge clogged (Pentair Everpure or 3M Cuno on most Hoshizaki installs, 6-month replacement cycle), or the Hoshizaki water inlet pump diaphragm has failed (KM-Edge uses a pump, not a valve like Manitowoc/Scotsman). Our techs at Same Day Appliance Repair check the supply valve and filter first because those resolve roughly 4 of every 10 E-1 calls at no parts cost. Water inlet pump replacement runs $340 to $540 if the upstream supply side checks clean.
What does E-2 mean on my Hoshizaki?
E-2 means high temperature alarm — ambient or condenser temperature exceeded safe operating range. Three usual causes: condenser coil fouled with kitchen grease restricting heat rejection (most common, $245 to $385 cleaning resolves), condenser fan motor failure on -A air-cooled units (high-pitched whine or no airflow, $300 to $520 motor replacement), or ambient kitchen temperature genuinely exceeding the unit's spec (kitchen above 90°F during LA summer service). Our techs at Same Day Appliance Repair check condenser fin condition and fan operation first because those resolve the majority of E-2 calls.
What does E-3 mean on my Hoshizaki?
E-3 means long freeze cycle — the freeze cycle exceeded its design time. Three usual causes: refrigerant under-charge or sealed-system fouling (most common cause, EPA 608 work to confirm, $700 to $1,500 leak repair plus recharge), condenser fouling triggering E-3 alongside E-2 (cleaning $245 to $385), or water inlet pump partial restriction reducing fill speed (Hoshizaki-specific pump component, $340 to $540 replacement). Our techs at Same Day Appliance Repair check head pressure on manifold gauges and inspect the condenser first because that combination quickly distinguishes refrigerant from condenser from water-side root cause.
What does E-4 mean on my Hoshizaki?
E-4 means long harvest cycle — the freeze cycle completed but ice didn't release from the cell evaporator during harvest. Three usual causes: the cell sensor has drifted out of spec ($200 to $340 replacement, most common at year 5+), the hot gas valve failed to warm the evaporator during harvest ($340 to $540), or the water curtain on cell-and-curtain architecture isn't seating correctly during the freeze cycle (visual inspection clears or replacement is part of curtain assembly service). Our techs at Same Day Appliance Repair check hot gas valve operation first because that resolves the majority of E-4 calls on year-5+ KM-Edge machines.
What does E-5 mean on my Hoshizaki?
E-5 means control thermistor failure — the temperature sensor that reports cabinet temperature to the EverCheck control board has gone out of spec. The thermistor (resistance temperature sensor) is supposed to report a specific ohms value at given temperatures; when it drifts, the EverCheck reads incorrect temperature and triggers E-5 as protection. Replacement runs $200 to $340 with the thermistor on the truck. Less commonly, the wiring between thermistor and control board has a break or corroded connector — visual inspection clears that fast. Our techs at Same Day Appliance Repair test the thermistor resistance against spec before quoting replacement.
What does E-6 mean on my Hoshizaki?
E-6 means compressor protection trip — the compressor's safety circuit fired, cutting power to protect against further damage. Three usual causes: compressor over-temperature from condenser fouling or refrigerant over-charge (check condenser fins and pressure first — $245 to $385 cleaning often clears, or EPA 608 refrigerant work $700 to $1,500), high-pressure refrigerant fault from sealed-system issue, or electrical fault on the compressor circuit (less common but real — capacitor or relay failure $185 to $385). Our techs at Same Day Appliance Repair check condenser condition and head pressure before opening the sealed system because that distinguishes external from internal root cause. E-6 on a year-10+ unit often signals end-of-life compressor — $1,400 to $2,800 replacement on KM-650MAJ or larger.
How do I read EverCheck on my F-Series or DCM Cubelet?
F-Series flake and DCM Cubelet machines follow the same EverCheck E-1 through E-6 convention as KM-Edge cube. The LCD layout is similar across the product family — Hoshizaki standardized the display interface across cube, flake, and Cubelet lines. The diagnostic difference is the architecture: F-Series and DCM use auger-driven cylindrical evaporator drums, so E-3 long freeze and E-4 long harvest codes on these models often point to auger drive issues rather than cube cell sensor issues. Our techs at Same Day Appliance Repair carry brand-specific service manuals for KM-Edge, F-Series, and DCM so the same code is interpreted correctly against the right architecture.
How do I reset my Hoshizaki KM-Edge after an EverCheck code?
KM-Edge reset is a physical power-cycle: turn the unit off at the rocker switch on the control panel or at the main breaker, wait 60 seconds, restore power. The EverCheck LCD clears the displayed code. Hoshizaki uses a physical reset (rocker switch or breaker) rather than a touchscreen menu like Manitowoc Indigo NXT. If the underlying fault is still present, the code returns within minutes (faster on serious faults like E-3 long freeze or E-6 compressor protection, slower on intermittent E-1 water issues). Resetting without diagnosing is fine as a temporary workaround while you wait for our visit; don't ignore a code that keeps returning.
What if my Hoshizaki shows multiple EverCheck codes at once?
Multiple simultaneous codes usually point to a single root cause affecting multiple sensors — most commonly an EverCheck control board fault that's misreading several inputs, or a sealed-system pressure trip that triggers downstream thermistor (E-5) and compressor protection (E-6) codes. Our techs at Same Day Appliance Repair check the control board power supply first because about 1 in 3 'multiple codes' calls turn out to be a tripped low-voltage transformer or blown control fuse — a $145 fix, not a $480 to $820 EverCheck board replacement.
How much does Hoshizaki error-code-related repair cost?
Diagnostic visit + EverCheck read $120, waived with repair. Typical repair ranges by code: E-1 (water inlet pump $340-$540 or filter $80-$180); E-2 (condenser cleaning $245-$385 or fan motor $300-$520); E-3 (refrigerant work $700-$1,500 or pump/condenser); E-4 (cell sensor $200-$340 or hot gas valve $340-$540); E-5 (thermistor replacement $200-$340); E-6 (capacitor $185-$385 or condenser cleaning $245-$385 or compressor replacement $1,400-$2,800). Most named-code calls resolve in the $200 to $540 range when the code points to water-side or sensor work.
How can I prevent Hoshizaki error codes?
Three preventive practices reduce error-code frequency on KM-Edge and F-Series: (1) Follow the CleanCycle 24 reminder system — 2 to 4 cleanings per year with brand-spec cleaner. Scale triggers E-2, E-3, E-6 codes on Hoshizaki cell-and-curtain evaporator. (2) Replace water filter on the 6-month schedule (Pentair Everpure or 3M Cuno) — overdue filters trigger E-1 low water and accelerate water inlet pump wear. (3) Inspect condenser fin clearance quarterly and clean fins during scheduled service — fouled condenser is the single biggest cause of E-2 high temperature and E-3 long freeze codes. Our techs at Same Day Appliance Repair offer quarterly contract service with documented LA County DPH compliance — typically $720 to $1,200 annual for cleaning + filter replacement + condenser cleaning.
Related
Hoshizaki and commercial ice service across the catalog.
Hoshizaki showing an EverCheck code? Same-day priority.
Our techs at Same Day Appliance Repair read the EverCheck LCD on-site and translate the E-code into a diagnostic action within the first 10 minutes — most LA County hospitality calls move from "what does this code mean" to "here's the quote and restoration time" before the diagnostic visit ends. EPA 608 + R-290 certified. BHGS #A49573 + EPA 608 #1346255700410. 24/7 phones, no emergency surcharge.