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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 dor: a Steelheart door has been open too long

On Steelheart upright reach-ins the control flashes dor with the alarm icon once a door has been open past two minutes.

(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 dor
actually means.

On Steelheart upright reach-ins the control flashes dor with the alarm icon once a door has been open past two minutes. A failed door switch gives the same three letters, so dor can appear on a door that is plainly shut. The control beeps for ten seconds out of every minute until someone silences it.

Hoshizaki commercial appliance display

What to do when dor 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 reach-ins (service manual 73237). Not listed for the Commercial S-Series or for Steelheart prep tables and equipment stands.

Before you book,
in this order.

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

01

Close every door on the cabinet firmly and watch whether dor clears.

02

Look for a pan handle, a sheet tray or a shelf edge holding a door off its gasket.

03

Press and release the upper button to silence the beep while you check.

04

When dor comes back with every door latched, the switch is suspect, and that is a visit.

Still there?

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

What not to do

dor reports a door, not a temperature, though a door propped open through a rush can turn into Hi two hours later. The Commercial S-Series uprights and the Steelheart prep tables have no dor line in their alarm tables, so a beep on those cabinets points to another code.

What you may
notice with it.

The commercial appliance problems dor 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 dor 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

E01E02HiLoUHiULoE1E3E7

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

Door Switch Alarm: Door has remained open for more than 2 minutes.
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 reach-ins (service manual 73237). Not listed for the Commercial S-Series or for Steelheart prep tables and equipment stands.

Hoshizaki dor 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 dor.

Can I clear dor myself?
Close every door on the cabinet firmly and watch whether dor clears. If it comes back, it needs a visit.
Why does my Hoshizaki reach-in show dor with the door closed?
The door switch still reads that door as open. A door that has dropped out of line with its switch, or a switch that has failed, produces the same dor as an open door, and only a test of the switch tells the two apart.
How do I stop the dor beep on a Steelheart?
Press and release the upper button to silence it. Closing the door properly is what clears the code, so find what is holding it open before you walk away.
Can dor on a Hoshizaki cabinet spoil food?
Not by itself; it warns that cold air is escaping. Check the cabinet temperature on the display, and if product climbs above 41°F, move it to a working unit and log the reading.

Back to your everyday

Still showing dor?

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