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 contintinuity

 

 

 

 

 

 

 

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

 

 

 

 

 

 

 

 

 

 

b)

Float Switch

1.

Bad contacts.

1.

Check for continuity

 

start

 

 

 

 

 

 

 

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.

 

 

 

 

 

 

 

 

35

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Hoshizaki F-801MWH/-C, F-801MAH/-C service manual Service Diagnosis No Ice Production, Problem Possible Cause Remedy
Page 34 Page 36

F-801MWH/-C, F-801MAH/-C specifications

The Hoshizaki F-801MAH/-C and F-801MWH/-C are high-performance ice machines designed for commercial use, particularly in restaurants, bars, and food service settings. These models are renowned for their reliability, efficiency, and strong production capabilities, making them ideal choices for businesses that require large quantities of ice on a regular basis.

One of the standout features of the Hoshizaki F-801 models is their impressive ice production capacity. They can produce up to 800 pounds of cube ice every 24 hours, ensuring that businesses never run out of ice during peak periods. This high output is complemented by a large storage bin that can hold up to 600 pounds of ice, providing ample supply for busy environments.

In terms of technology, both the F-801MAH/-C and F-801MWH/-C employ Hoshizaki's unique air-cooled refrigeration system. This system enhances efficiency while minimizing energy consumption, making these machines environmentally friendly and cost-effective. The ice-making cycle is optimized, ensuring rapid production without compromising on the quality of the ice.

Additionally, the F-801 models feature a stainless steel exterior, ensuring durability and easy maintenance. The hygienic design reduces the risk of contamination, making these machines suitable for a variety of food service applications. The interiors are configured with rounded corners, allowing for easier cleaning and maintenance.

Another notable characteristic of the F-801MAH/-C and F-801MWH/-C is their self-diagnostic system which regularly monitors the machine's performance. This feature allows operators to identify and address potential issues before they lead to costly downtime, enhancing operational efficiency.

The machines also come with a built-in cleaning cycle, which aids in maintaining optimal performance and extending the lifespan of the units. This convenience means that operators can ensure consistent ice quality with minimal effort.

Overall, the Hoshizaki F-801MAH/-C and F-801MWH/-C ice machines represent a combination of advanced technology, robust performance, and user-friendly design. With their high production capabilities, energy efficiency, and ease of maintenance, they are excellent investments for any business requiring a reliable source of ice. Whether it is for cocktails at a bustling bar or for food preservation in a busy kitchen, these machines are equipped to meet diverse operational needs while delivering exceptional performance.
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