D. Diagnostic Chart

Before consulting the diagnostic charts, check the following:

•Check the setpoint. For factory default settings, see "II.C.2.a) Default Settings."

•Make sure the doors are not left open or opened too often and that they are sealing properly.

•Make sure the cabinet is not overloaded with warm or hot product or product blocking airflow. Product should be allowed to cool before putting in the unit.

•Check for correct installation and proper voltage per unit nameplate. This unit is not intended for outdoor use. Normal operating ambient temperature should be within 45°F to 100°F (7°C to 38°C). The unit should not be located next to ovens, grills, or other high heat producing equipment. The unit should be a minimum of 4" (11 cm) from side walls and a minimum of 10" (25 cm) overhead clearance should be provided for proper ventilation.

•Check the control module using the steps in "IV.B. Control Module Check."

1.Unit Not Cooling

Unit Not Cooling - Possible Cause

1.

Power Supply

a) Unplugged, off, blown fuse, or tripped or defective circuit breaker. On

 

 

three-section receptacle box, only top receptacles have power.

 

 

b) Loose connection.

 

 

 

 

 

c) Not within specifications.

 

 

 

2.

Cord and Plug

a) Loose connection.

 

On three-section model, check

 

 

receptacle box cord and plug and

 

 

b) Defective.

 

one‑section and two-section cords

 

 

 

and plugs.

 

3.

Power Switch (control box)

a) "OFF" position.

 

 

 

 

 

b) Bad contacts.

 

 

 

4.

Wiring

a) Loose connection or open.

 

 

 

 

 

b) Faulty.

 

 

 

5.

Control Module

a) In alarm or "- - -" displayed.

 

See "II.D.2. Alarm Safeties" and

 

 

b) Defective.

 

"IV.B. Control Module Check."

 

 

 

 

 

6.

Door Switch

a) Defective.

 

 

 

7.

Door Switch Relay

a) Loose connection.

 

 

 

 

 

b) Bad contacts.

 

 

 

 

 

c) Open coil windings.

 

 

 

8.

Evaporator Fan Motor

a) Defective.

 

 

 

9.

High-Pressure Switch

a) Dirty condenser.

 

 

 

 

 

b) Ambient temperature too warm.

 

 

 

 

 

c) Condenser fan not operating.

 

 

 

 

 

d) Refrigerant overcharge.

 

 

 

 

 

e) Refrigerant lines or components restricted.

 

 

 

 

 

f) Bad contacts.

 

 

 

10.

Compressor Relay

a) Bad contacts.

 

 

 

 

 

b) Open coil windings.

 

 

 

35

Page 34 Page 36
Page 35
Image 35
Hoshizaki 73183 service manual Diagnostic Chart, Unit Not Cooling
Page 34 Page 36

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.
Top Page Image Contents