Hoshizaki F-1000MRF/-C, F-1000MAF/-C, F-1000MLF/-C Service Diagnosis, No ICE Production

Page 50

V.SERVICE DIAGNOSIS

1.NO ICE PRODUCTION

 

PROBLEM

 

POSSIBLE CAUSE

 

REMEDY

[1]

The icemaker will

a)

Power Supply

1.

OFF position.

1.

Move to ON position.

 

not start.

 

 

 

 

 

 

 

 

 

2.

Loose connection.

2.

Tighten.

 

 

 

 

 

 

 

 

3.

Bad contacts.

3.

Check for continuity

 

 

 

 

 

 

 

and replace.

 

 

 

 

4.

Blown fuse.

4.

Replace.

 

 

b)

Power Switch

1.

Off position.

1.

Move to ON position.

 

 

 

(Control Box)

 

 

 

 

 

 

 

2.

Bad contacts.

2.

Check for continuity

 

 

 

 

 

 

 

and replace.

 

 

c)

Fuse (Control Box)

1.

Blown out.

1.

Check for short circuit

 

 

 

 

 

 

 

and replace.

 

 

d)

Circuit Protect Relay

1.

Miswiring.

1.

Check power supply

 

 

 

 

 

 

 

voltage and wire

 

 

 

 

 

 

 

properly.

 

 

e)

Flush Timer

1.

Flushing out.

1.

Wait for 15 minutes.

 

 

 

 

2.

Bad contacts.

2.

Check for continuity

 

 

 

 

 

 

 

and replace.

 

 

f)

Flush Switch

1.

FLUSH position.

1.

Move to ICE position.

 

 

 

 

2.

Bad contacts.

2.

Check for continuity

 

 

 

 

 

 

 

and replace.

 

 

g)

Transformer

1.

Coil winding opened.

1.

Replace.

 

 

h)

Control Water Valve

1.

Coil winding opened.

1.

Replace.

 

 

i)

Shut-off Valve

1.

Closed.

1.

Open.

 

 

 

 

2.

Water failure.

2.

Wait till water is

 

 

 

 

 

 

 

supplied.

 

 

j)

Plug and Receptacle

1.

Disconnected.

1.

Connect.

 

 

 

(Control Box)

 

 

 

 

 

 

 

2.

Terminal out of Plug

2.

Insert Terminal back in

 

 

 

 

 

or Receptacle.

 

position

[2] Water flow does not

a)

Water Control Relay

1.

Contact fused.

1.

Replace.

 

stop, and the

 

 

 

 

 

 

 

 

 

2.

Coil winding opened.

2.

Replace.

 

icemaker will not

 

 

 

start

b)

Float Switch

1.

Bad contacts.

1.

Check for continuity

 

 

 

 

 

 

 

and replace.

 

 

 

 

2.

Float does not move

2.

Clean or replace.

 

 

 

 

 

freely.

 

 

 

 

c)

Flush Water Valve

1.

Valve seat clogged

1.

Clean or replace

 

 

 

 

 

and water leaking.

 

 

 

 

d)

Hoses

1.

Disconnected.

1.

Connect.

[3]

Water has been

a)

Water Control Relay

1.

Bad contacts.

1.

Check for continuity

 

supplied, but the

 

 

 

 

 

and replace.

 

icemaker will not

b)

Bin Control

1.

Bad contacts.

1.

Check for continuity

 

start.

 

 

 

 

 

and replace.

 

 

 

 

2.

Activator does not

2.

Clean Axle and its

 

 

 

 

 

move freely.

 

corresponding holes

 

 

 

 

 

 

 

or replace Bin Control.

 

 

c)

Gear Motor Relay

1.

Coil winding opened.

1.

Replace.

 

 

 

 

2.

bad contacts.

2.

Check for continuity

 

 

 

 

 

 

 

and replace.

 

 

d)

Control Timer

1.

Broken.

1.

Replace.

 

 

 

(Printed Circuit

 

 

 

 

 

 

 

Board)

 

 

 

 

 

 

e)

Gear Motor Protect

1.

Coil winding opened.

1.

Replace.

 

 

 

Relay

 

 

 

 

 

 

 

2.

Bad contacts.

2.

Check for continuity

 

 

 

 

 

 

 

 

 

 

 

and replace.

 

 

 

 

 

 

 

 

50

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Contents Modular Flaker Hoshizaki AMERICA, INC Contents Page Specification Icemaker 1000MAF1000MWF WATER-COOLED Condenser1000MRF Water TEMP. F1000MLF Condensing Unit1000MAF-C 1000MWF-C Potable Water WATER-COOLED Condenser1000MRF-C 1000MLF-C Condenser Unit URC-6FSpecifications Model URC-6F Exterior II. General Information Construction 1000MAF/-C1000MWF/-C 1000MRF/-C 1000MLF/-C Control BOX Layout 1000MWF, F-1000MRF/-C Motor CAP 1000MAF/-C 1000MWF/-C 1000MRF/-C 1000MLF/-C Wiring Diagrams 1000MAF/-C, F-1000MWF/-C, F-1000MRF/-C1000MLF/-C Sequence of Electrical Circuit Page Compressor starts about 60 sec. after Gear Motor starts Page Low Water Except Water-cooled Model Page Page When Flush Timer operates for 15 min. every 12 hours Page Page Timing Chart Gear Motor Relay OFF FAN Motor Compressor OFF Performance Data ICE ProductionTotal Condenser Volume Heat of Rejection from Condenser Temp. F PER 24 HR 1150 Temp. F PER 24 HR 860 Temp. F PER 24 HR 790 Temp. F PER 24 HR 840 Temp. F PER 24 HR 1020 CCW Service Diagnosis No ICE ProductionBussman GMD LOW ICE Production Problem Possible Cause Remedy Others Problem Possible Cause Remedy Refrigerant Recovery Except F-1000MLF-C VI. Removal and Replacement of ComponentsService for Refrigerant Lines Refrigerant Recovery F-1000MLF onlyBrazing Removal and Replacement of Compressor Important Removal and Replacement of Drier Removal and Replacement of Expansion Valve Page Page Removal and Replacement of Evaporator Assembly CutterBEARING-LOWER and Mechanical Seal Page Page Removal and Replacement of FAN Motor Removal and Replacement of Control Water ValveRemoval and Replacement of Flush Water Valve VII. Maintenance and Cleaning Instructions Preparing the Icemaker for Long StoragePage Cleaning Instructions Page Page Page Maintenance Extruding Head Housing Gear Motor Auger Mechanical Seal

F-1000MWF/-C, F-1000MRF/-C, F-1000MLF/-C, F-1000MAF/-C specifications

The Hoshizaki F-1000MRF/-C, F-1000MLF/-C, F-1000MAF/-C, and F-1000MWF/-C are exceptional commercial refrigeration units designed for various applications, including food storage and display in restaurants, grocery stores, and catering services. These models stand out for their superior build quality, advanced features, and energy-efficient performance, making them a top choice for businesses that require reliable refrigeration solutions.

One of the flagship features of these Hoshizaki models is their robust construction. They are designed with stainless steel, ensuring durability and ease of cleaning. The exterior is not only aesthetically appealing but also resistant to corrosion and impacts, making them suitable for a busy work environment. The interior is equally well-designed, with rounded corners and smooth surfaces that facilitate sanitization.

The Hoshizaki F-1000 series incorporates advanced cooling technologies, including a highly efficient refrigeration system that uses a combination of environmentally friendly refrigerants. This technology allows for rapid temperature recovery, ensuring that stored products remain at optimal temperatures, which is crucial for maintaining food safety. The models feature digital temperature controls, providing precise monitoring and adjustments for various storage needs.

Energy efficiency is another cornerstone of the F-1000 series. These units are designed to operate with minimal energy consumption, contributing to reduced operational costs. The use of high-efficiency condensers and evaporators enhances heat exchange, leading to lower energy usage while maintaining excellent cooling performance.

Versatility is a defining trait of the F-1000 models. They come in different configurations, such as glass door and solid door options, allowing businesses to select a model that fits their specific storage and display needs. The interior layout is spacious and equipped with adjustable shelving, maximizing storage potential and accommodating various food items.

Additionally, these units are equipped with user-friendly features. The digital display panel allows for easy monitoring of temperatures and system status. The self-diagnostic capabilities notify users of any potential issues, enabling prompt maintenance and reducing downtime.

In summary, the Hoshizaki F-1000MRF/-C, F-1000MLF/-C, F-1000MAF/-C, and F-1000MWF/-C models exemplify the perfect blend of durability, efficiency, and versatility. With cutting-edge technologies, energy-saving performance, and user-friendly designs, these refrigeration units meet the demands of the food service industry and provide reliable storage solutions for a variety of applications.
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