Hoshizaki 73183 service manual Alarm Safeties, Refrigerator & Freezer Cabinet

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2. Alarm Safeties

Alarm signals are designed to protect the unit and food product. These alarms give information or warnings in the event the unit is operating out of acceptable parameters. Should one of the alarms occur, follow the instructions in the table below to address the alarm. The alarm code flashes once every second with audible alarm. To silence the alarm, press and release the upper button.

Alarm Signals

Alarm Code

Problem

Corrective Action/Reset Details

 

 

 

 

Cabinet Thermistor Malfunction Alarm

Cabinet thermistor disconnected, shorted, or open.

 

 

Check connection and continuity. Reconnect or

E1

Cabinet thermistor has failed.

replace as needed.

 

 

Unit cycles 5 min. on, 5-min. off.

 

 

 

 

Defrost Thermistor Malfunction Alarm

Defrost thermistor disconnected, shorted, or open.

E2

 

Check connection and continuity. Reconnect or

 

Defrost thermistor has failed.

replace as needed.

 

 

Unit cycles on and off with cabinet thermistor.

 

 

 

UHi

High-Voltage Alarm (135VAC±5% or

The compressor de-energizes if voltage protection

more)

operates. The voltage safeties automatically reset

 

 

 

when voltage is corrected.

ULo

Low-Voltage Alarm (96VAC±5% or less)

 

High-Temperature Alarm

First try obvious corrections such as closing doors

 

Note: When power is turned on, the

and cleaning the condenser.

 

2-hour high-temperature alarm timer is

 

 

bypassed. Therefore, a high-temperature

Automatically resets when temperature returns to

 

alarm can occur at startup.

normal.

Hi

Refrigerator: Cabinet temperature has

 

 

exceeded the setpoint temperature by

 

 

10°F (5.6°C) for more than 2 hours.

 

 

Freezer: Cabinet temperature has

 

 

exceeded the setpoint temperature by

 

 

27°F (15°C) for more than 2 hours.

 

 

 

 

 

Low-Temperature Alarm

Automatically resets when temperature returns to

 

 

normal.

Lo

Refrigerator & Freezer: Cabinet

 

 

temperature has remained below the

 

 

setpoint temperature by 8°F (4.4°C) for

 

 

more than 2 hours.

 

 

 

 

 

Communication Error Alarm

Check the connections at the control module

 

 

and the display module. If connections are good,

E13

Communication between the control

the control module and display module must be

module and the display module has been

replaced.

 

 

interrupted or disconnected.

 

 

 

The unit operates on a set 5-minutes on, 5-minutes

 

 

off cycle until communication is restored.

 

Compressor Off

Unit (compressor) off.

"– – –"

 

Press and hold the upper and lower buttons until the

 

 

 

 

temperature appears on the display.

 

 

 

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Contents Superior Degree Reliability Number Issued Hoshizaki AMERICA, INC Contents Page Unit Important Safety InformationSerious injury Indicates important information about the use and carePage Dimensions Specifications Nameplate RatingsRefrigerated Volume and Shelf Space Unit mm One Section/Two Section/Three SectionOne Section II. General Information ConstructionTwo Section Three Section Sequence Cycles and Shutdown Sequence of OperationFreezer Charts Refrigerator Sequence Flow ChartFreezer Sequence Flow Chart Display Module Layout Display ModuleTemperature Setpoint Controls and AdjustmentsRefrigerator Control Module Freezer Control Module Control ModuleControl Module Layout Refrigerator & Freezer Cabinet Alarm SafetiesCompressor External or Internal Overload High-Pressure SwitchMullion/Perimeter Heater ThermistorsIII. Technical Data Refrigeration Circuit Wiring Diagrams CR2B-FS/HS, CR3B-FS/HS CF1B-FS/HS, CF3B-FS/HS CF2B-FS/HS, CF3B-FS/HS Page Diagnostic Procedure IV. Service DiagnosisRefrigerator Defrost Diagnosis DefrostFreezer Defrost Page Startup/Cool Down Control Module CheckThermistor Check Unit Not Cooling Diagnostic ChartDefrost Fails to Terminate Evaporator is Frozen UpService for Refrigerant Lines Replacement of ComponentsRefrigerant Recovery Evacuation and Recharge BrazingPage Door Re-Hinging Important Notes for Component ReplacementMaintenance CleaningShutdown and Long Storage

73183 specifications

The Hoshizaki 73183 is a state-of-the-art ice machine that has garnered attention in the foodservice industry for its reliability and efficiency. Renowned for its compact design, the model is particularly well-suited for restaurants, bars, and cafes where space is often at a premium. One of the standout features of the Hoshizaki 73183 is its capability to produce high-quality cube ice, essential for various beverages and food presentation.

One of the primary technologies that sets this ice machine apart is the Kold-Draft ice production method. This technology ensures that the ice produced is not only clear and hard but also lasts longer in drinks, preventing dilution. The 73183 model is capable of producing up to 800 pounds of ice in a 24-hour cycle, making it a reliable choice for businesses requiring a high volume of ice throughout the day.

Energy efficiency is another hallmark of the Hoshizaki 73183. The unit operates with a low energy consumption rate, aligning with today’s demand for sustainable ice production solutions. It is equipped with efficient compressor technology, which reduces operational costs without compromising performance. In addition, the machine utilizes an advanced air-cooled condenser system, making it optimal for various ambient conditions while ensuring consistent ice output.

Durability and ease of maintenance also characterize the Hoshizaki 73183. Constructed with stainless steel, the unit is not only aesthetically pleasing but also resistant to corrosion and wear, ensuring longevity in a demanding kitchen environment. Furthermore, the machine features an easy-to-access design that simplifies cleaning and maintenance, promoting optimal hygiene and performance.

The unit also integrates user-friendly digital controls, allowing operators to monitor ice production rates and make adjustments as needed. An intuitive display provides real-time status updates, ensuring that businesses can always meet their ice needs.

In summary, the Hoshizaki 73183 ice machine combines innovative technology with robust design, making it an ideal choice for businesses seeking a reliable, efficient, and high-performing ice production solution. Its remarkable features and characteristics firmly establish it as a leading option in the competitive landscape of commercial ice machines.
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