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A stainless sandwich prep table on a restaurant line, the prep table's lid raised over a row of covered food pans, a probe thermometer standing in one pan, nobody at the table.

Hoshizaki Hi: the cold cabinet has run warm for two hours

The control raises Hi once a cooler cabinet has sat above 57°F, or a freezing cabinet above 26°F, for more than two hours.

(844) 571-4566

Mon–Sat, 8am–8pm

  • Temperature and alarms
  • Reach-in and prep table repair
  • Source: Hoshizaki

Book a visit

Three short steps, about a minute.

or call (844) 571-4566

What Hi
actually means.

The control raises Hi once a cooler cabinet has sat above 57°F, or a freezing cabinet above 26°F, for more than two hours. Hoshizaki's first checks are the doors, the air filter and the condenser. The code clears itself when the temperature comes back into range, but the alarm icon stays lit so the next shift can see it happened.

Hoshizaki commercial appliance display · also shown as HI

What to do when Hi shows on the commercial appliance

Kind of codeTemperature and alarms

The controller has seen a temperature outside the band it was set for and is saying so: a box above its alarm point, a fryer vat or an oven cavity that tripped its high-limit, or a dish machine rinse that never came up to heat. Often the cause sits outside the unit, such as a door left open during a delivery, a coil packed with grease, a kitchen far hotter than the maker allows or a booster fed cold water. Checking the door, the coil and the air around the unit is fair; move the product if a cold box stays above 41°F, and book the visit.

Usually leads toReach-in and prep table repair

Reach-ins, pass-throughs, prep tables and blast chillers: gaskets, hinges, fans, thermostats, condensers and compressors.

Shows up asCommercial 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.

MakeHoshizaki

On a Hoshizaki cold cabinet in a restaurant, the tech first finds out when the last good temperature was written on the log.

SourceHoshizaki Steelheart Series upright A-Series service manual 73237 (archived copy of the Hoshizaki America PDF)

Steelheart upright A-Series and Commercial Series upright S-Series use 57°F for coolers and 26°F for freezing cabinets. Steelheart prep tables and equipment stands use 57°F.

Before you book,
in this order.

Each step comes from Hoshizaki's own guidance for Hi on its commercial appliances. Follow it to the end: the last card says whether this is a visit.

01

Check product with a probe thermometer and move anything above 41°F in a cooler to a working unit, following your health code on discard.

02

Close every door and make sure no box or sheet pan blocks the air inside the cabinet.

03

Wash the condenser air filter in warm water with a neutral cleaner if it is dusty.

04

Silence the beep with the upper button, log the time and reading, and book a visit if the display does not start falling within an hour.

Still there?

It usually turns into reach-in and prep table repair. Book with the code and the model number.

What not to do

Hi can also appear at start-up on a cabinet that was plugged in warm, and it clears once the cabinet pulls down. It is not UHi, which is a supply voltage warning on Steelheart prep tables.

What you may
notice with it.

The commercial appliance problems Hi tends to arrive with. Answer these at the commercial appliance before anyone is booked.

All problems

Before you call

Commercial Appliance Error Code on a Combi, Fryer, Dish Machine or Laundry Display

All 8 causes, cheapest first

It also comes with

Close view of the dark touch control panel on the front of a stainless combi oven in a commercial kitchen, one abstract amber warning indicator glowing among unlit icons, the steam-fogged glass door blurred beside it. Problem

Commercial Appliance Error Code on a Combi, Fryer, Dish Machine or Laundry Display

8 causes, cheapest first

Where Hi usually leads

Reach-in and prep table repair.

Reach-in, pass-through or prep table gasket, hinge, fan motor, thermostat or controller, defrost heater, leak repair or compressor · moderate.
Book a visit What the job involves

Hoshizaki
commercial appliances.

On a Hoshizaki cold cabinet in a restaurant, the tech first finds out when the last good temperature was written on the log.

Hoshizaki commercial appliance repair

More Hoshizaki codes

dorE01E02LoUHiULoE1E3E7

Temperature and alarms on other makes

Alto-Shaam E13Beverage-Air HiBlodgett Cavity High Temp ErrorCleveland RESET lightContinental Refrigerator HIDelfield HiFrymaster E16Garland E04
All 69 codes of this kind
A row of three stainless steel reach-in cabinets with solid doors along the wall of a working restaurant kitchen, the reach-ins clearly the subject, one door open showing sheet pans of prepped vegetables on wire shelves, a walk-in cooler door with a clear strip curtain visible at the far end, a cook seen only from behind in a white jacket passing in the soft background, bright even kitchen light. Hoshizaki 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.

In Hoshizaki's own words

remained above 57°F (13.9°C) for more than 2 hours.
Hoshizaki Steelheart Series upright A-Series service manual 73237 (archived copy of the Hoshizaki America PDF) Hoshizaki Steelheart Series upright A-Series service manual 73237 (archived copy of the Hoshizaki America PDF) Hoshizaki Steelheart Series upright A-Series service manual 73237 (archived copy of the Hoshizaki America PDF)

Every code on this site is taken from the manufacturer's documentation, never from a forum or a parts listing. Steelheart upright A-Series and Commercial Series upright S-Series use 57°F for coolers and 26°F for freezing cabinets. Steelheart prep tables and equipment stands use 57°F.

Hoshizaki Hi 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

Tampa BayFL · 31 areas

OrlandoFL · 30 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

San Francisco Bay AreaCA · 74 areas

A restaurant team working a busy commercial kitchen line.
For the heart of your home.

Questions
about Hi.

Can I clear Hi myself?
Check product with a probe thermometer and move anything above 41°F in a cooler to a working unit, following your health code on discard. If it comes back, it needs a visit.
Is food safe when a Hoshizaki cabinet shows Hi?
Not necessarily. Hi appears only after two hours above the limit, so check each item with a thermometer and follow your health code for anything held above 41°F.
Why does Hi keep coming back on my Hoshizaki during lunch?
Doors opened constantly, a clogged air filter and a dirty condenser are the causes Hoshizaki lists before a service call. If the cabinet stays warm with clean filters and closed doors, the cooling system needs a technician.
Does Hi on a Hoshizaki clear by itself?
Yes, once the cabinet returns to normal temperature. The alarm icon stays lit afterward, which is a prompt to write the event in your temperature log.

Back to your everyday

Still showing Hi?

A booking with a code goes further when it has the code as shown, the model and serial from the data plate, and a word on whether the unit still holds temperature, heats, rinses or spins. With those three, the office can match the likely part to your unit the same day.

Schedule a repair Call (844) 571-4566
(844) 571-4566 Schedule a repair