Hoshizaki E01: the cabinet temperature sensor has failed
The cabinet thermistor is how the control knows how cold the box is.
Mon–Sat, 8am–8pm
- Sensors and probes
- Commercial controls and board repair
- Source: Hoshizaki
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What E01
actually means.
The cabinet thermistor is how the control knows how cold the box is. When it fails, Steelheart and Commercial Series uprights show E01, beep once a minute and run the compressor five minutes on and five minutes off instead of stopping. Product stays cool for a while, but nothing is watching the actual temperature any more.
Hoshizaki commercial appliance display
What to do when E01 shows on the commercial applianceKind of codeSensors and probes
A probe is handing the controller a reading it cannot trust, or none at all: a box or coil sensor torn loose from its clip, a fryer probe coated in carbon from oil left too long between filterings, a combi core probe with a kinked cable, or a connector gone green from steam and cleaning chemicals. The unit then runs on, stops, or shuts the heat or the cooling off to protect itself. Letting it cool and restarting it as the manual describes is fair; a probe that still reads wrong sits behind a panel, and that is a visit.
Usually leads toCommercial controls and board repair
Controllers, touch panels, relays, contactors and interlocks tested, and replaced only when the evidence says so.
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, which fall back to timed cycling. Steelheart prep tables and equipment stands list E01 too, without the timed fallback line.
Before you book,
in this order.
Each step comes from Hoshizaki's own guidance for E01 on its commercial appliances. Follow it to the end: the last card says whether this is a visit.
Silence the beep with the upper button and put a thermometer inside the cabinet.
Log the thermometer reading every hour while E01 stays on the display.
Move sensitive food to another cold unit if the thermometer reads above 41°F.
Book a visit to have the cabinet thermistor replaced.
Still there?
It usually turns into commercial controls and board repair. Book with the code and the model number.
What not to do
E01 is not a warm-cabinet alarm, and the cabinet is often still cold when it first appears. It is also a different code from E1 on older HPR prep tables, where E1 reports a high cabinet temperature.
What you may
notice with it.
The commercial appliance problems E01 tends to arrive with. Answer these at the commercial appliance before anyone is booked.
All problems
Where E01 usually leads
Commercial controls and board repair.
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 repairMore Hoshizaki codes
Sensors and probes on other makes
In Hoshizaki's own words
Cabinet thermistor has failed.
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, which fall back to timed cycling. Steelheart prep tables and equipment stands list E01 too, without the timed fallback line.
Hoshizaki E01 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 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 E01.
Can I clear E01 myself?
Can I keep using a Hoshizaki cabinet that shows E01?
Does unplugging a Hoshizaki cabinet clear E01?
Is E01 the same as E02 on a Hoshizaki?
Back to your everyday
Still showing E01?
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.