Hoshizaki E7: the HPR condenser is running too hot
HPR prep tables carry a condenser thermistor to catch a dirty condenser or filter.
Mon–Sat, 8am–8pm
- Compressor and cooling
- Walk-in cooler repair
- Source: Hoshizaki
Book a visit
Three short steps, about a minute.
or call (844) 571-4566
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What E7
actually means.
HPR prep tables carry a condenser thermistor to catch a dirty condenser or filter. When it reads above its limit for more than two minutes, the display shows E7. Hoshizaki warns that ignoring it can damage the compressor, and the alarm resets once the condenser cools after cleaning.
Hoshizaki commercial appliance display
What to do when E7 shows on the commercial applianceKind of codeCompressor and cooling
The unit is running but not moving heat out of the box the way it should. On a walk-in that is often a condensing unit on the roof choking on cottonwood or grease, a condenser fan that stopped, an evaporator fan or defrost heater that failed so the coil iced solid, or a slow refrigerant leak; a reach-in adds a door gasket or heater that lets warm air in. Cleaning the condenser face with the power off and checking that the doors close are fair first steps; the refrigerant circuit, the compressor and every line stay with a technician.
Usually leads toWalk-in cooler repair
Walk-in coolers and freezers back to temperature: evaporators, fans, defrost, drain heaters, condensing units and doors.
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 HPR46A, HPR72A and HPR100A prep table service manual (archived copy of the Hoshizaki America PDF)
Older Hoshizaki HPR46A, HPR72A and HPR100A prep tables with raised rails, which use a two-character control different from the Steelheart display.
Before you book,
in this order.
Each step comes from Hoshizaki's own guidance for E7 on its commercial appliances. Follow it to the end: the last card says whether this is a visit.
Wash the condenser air filter and clear anything blocking the grille or the space around it.
Make sure the table is not drawing hot air from a fryer, oven or charbroiler beside it.
Restart the table and watch whether E7 returns once the compressor runs.
Book a visit if E7 comes back after cleaning, since the condenser fan motor may not be turning.
What not to do
E7 is not a cabinet temperature alarm, although a hot condenser soon leads to a warm cabinet. It is also different from E9, which reports a failed condenser sensor rather than a hot condenser.
What you may
notice with it.
The commercial appliance problems E7 tends to arrive with. Answer these at the commercial appliance before anyone is booked.
All problems
Where E7 usually leads
Walk-in cooler 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 repair
In Hoshizaki's own words
should be checked twice monthly and cleaned when necessary.
Every code on this site is taken from the manufacturer's documentation, never from a forum or a parts listing. Older Hoshizaki HPR46A, HPR72A and HPR100A prep tables with raised rails, which use a two-character control different from the Steelheart display.
Hoshizaki E7 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 E7.
Can I clear E7 myself?
How often should the HPR condenser filter be cleaned?
Will restarting the HPR clear E7?
Can I keep using the HPR while E7 is showing?
Back to your everyday
Still showing E7?
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.