Hoshizaki E02: the defrost sensor on the coil has failed
Hoshizaki places a second thermistor at the evaporator so the control knows when defrost is finished.
Mon–Sat, 8am–8pm
- Sensors and probes
- Commercial controls and board repair
- Source: Hoshizaki
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What E02
actually means.
Hoshizaki places a second thermistor at the evaporator so the control knows when defrost is finished. When that sensor fails, the display shows E02 and beeps on a one-minute cycle, while the compressor keeps cycling on the cabinet thermistor alone.
Hoshizaki commercial appliance display
What to do when E02 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, Commercial Series upright S-Series, and Steelheart prep tables and refrigerated equipment stands.
Before you book,
in this order.
Each step comes from Hoshizaki's own guidance for E02 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.
Compare the cabinet reading on the display with a thermometer placed on a middle shelf.
Watch for frost on the evaporator cover and weaker airflow at the back of the cabinet over the next days.
Book a visit to have the defrost thermistor replaced before the coil builds ice.
Still there?
It usually turns into commercial controls and board repair. Book with the code and the model number.
What not to do
E02 does not mean the cabinet is warm, and product is usually still safe when it first appears. It is also not the defrost cycle itself; a normal defrost shows the defrost icon without any code.
What you may
notice with it.
The commercial appliance problems E02 tends to arrive with. Answer these at the commercial appliance before anyone is booked.
All problems
Where E02 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
Defrost 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, Commercial Series upright S-Series, and Steelheart prep tables and refrigerated equipment stands.
Hoshizaki E02 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 E02.
Can I clear E02 myself?
Does E02 stop the compressor on a Hoshizaki?
Will a Hoshizaki cabinet ice up while E02 is showing?
How is E02 repaired on a Hoshizaki?
Back to your everyday
Still showing E02?
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.