Problem

Possible Cause

 

Remedy

 

 

 

 

 

m)Interlock Switch Open

1. Misaligned.

1. Realign.

 

(Cleaning Valve)

 

 

 

 

2. Bad contacts.

2. Check for continuity and

 

 

 

replace.

 

 

 

 

 

n)Wash Switch

1. WASH position.

1. Move to ICE position.

 

 

 

 

 

 

2. Bad contacts.

2. Check and replace.

 

 

 

 

[2] Water continues to

a)Float Switch

1. Connector

1. Place in position.

be supplied, and the

 

disconnected.

 

icemaker will not

 

 

 

 

2. Leads opened or

2. Check and replace.

start.

 

 

defective switch.

 

 

 

 

 

 

 

 

 

 

3. Float does not move

3. Clean or replace.

 

 

freely.

 

 

 

 

 

 

b)Control Board

1. Defective.

1. Replace.

 

 

 

 

[3] Compressor will

a)Magnetic Contactor

1. Bad contacts.

1. Check for continuity and

not start or stops

 

 

replace.

operating.

 

 

 

 

2. Coil winding opened.

2. Replace.

 

 

 

 

 

 

 

b)Start Capacitor or Run

1. Defective.

1. Replace.

 

Capacitor

 

 

 

 

 

 

 

c) Internal Overload

1. Loose terminal.

1. Tighten or replace.

 

Protector Open (check

 

 

 

1 through 3 to the right

2. Voltage.

2. Check and correct.

 

and d through f below)

 

 

 

3. Dirty condenser.

3. Clean.

 

 

 

 

 

d)Starter

1. Bad contacts.

1. Check and replace.

 

 

 

 

 

 

2. Coil winding opened.

2. Replace.

 

 

 

 

 

e)Compressor

1. Wiring to compressor.

1. Check for loose

 

 

 

connection or open, and

 

 

 

replace.

 

 

 

 

 

 

2. Defective.

2. Replace.

 

 

 

 

 

 

3. Protector tripped.

3. Reduce temperature.

 

 

 

 

 

f) Control Board

1. No power to contactor.

1. See "II.C.4. Control Board

 

 

 

Check Procedure."

 

 

 

 

[4] Water continues to

a)Inlet Water Valve

1. Diaphragm does not

1. Check for water leaks with

be supplied in freeze

 

close.

icemaker off.

cycle.

 

 

 

b)Control Board

1. Defective.

1. See "II.C.4. Control Board

 

 

 

 

Check Procedure."

 

 

 

 

[5] No water comes from

a)Water Supply Line

1. Water pressure too

1. Check and get

spray tubes. Water

 

low and water level in

recommended pressure.

pump will not start, or

 

water tank too low.

 

freeze cycle time is

 

 

 

b)Inlet Water Valve

1. Dirty mesh filter or

1. Clean.

too short.

 

orifice and water level

 

 

 

 

 

 

in water tank too low.

 

 

 

 

 

 

c) Water System

1. Water leaks.

1. Check connections for

 

 

 

water leaks, and replace.

 

 

 

 

36

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Hoshizaki KM-501MRH, KM-501MWH, KM-501MAH service manual Problem Possible Cause Remedy

KM-501MAH, KM-501MWH, KM-501MRH specifications

The Hoshizaki KM-501MWH, KM-501MAH, and KM-501MRH are standout models in the commercial ice machine market, known for their robust performance and innovative technologies. These machines are specially designed to meet the diverse needs of restaurants, bars, and other food service establishments that require a reliable source of high-quality ice.

One of the defining features of the KM-501 series is their high production capacity. Each model can produce up to 500 pounds of ice per day, ensuring that even the busiest establishments can keep up with demand. The ice produced is crystal-clear, with a unique crescent shape that not only looks appealing but also melts slowly, making it ideal for drinks and food presentations.

The KM-501MWH model is equipped with advanced technology that ensures energy efficiency and reduced water usage. It features a powerful compressor and a highly efficient evaporator, which work together to minimize energy consumption while maximizing output. This makes it an environmentally friendly choice, reducing operational costs for businesses.

The KM-501MAH model stands out with its air-cooled condenser system, which allows for optimal performance without the need for extensive cooling water lines. This makes the installation process easier and reduces complexity, enabling businesses to set up their ice machine with minimal hassle. Furthermore, it features a self-cleaning mode that simplifies maintenance, contributing to consistent ice quality over time.

On the other hand, the KM-501MRH is designed for rugged environments. It is constructed with high-quality materials that enhance durability and longevity, making it suitable for outdoor applications or establishments located in warmer climates. The stainless-steel design not only contributes to the machine's robustness but also ensures easy cleaning and resistance to rust and corrosion.

Another key characteristic of the Hoshizaki KM-501 models is their user-friendly control panel. These machines come with intuitive controls that allow operators to easily adjust settings and monitor performance. This feature is particularly useful for staff in busy kitchens, enabling them to focus on service without constant checks on ice production.

Overall, the Hoshizaki KM-501MWH, KM-501MAH, and KM-501MRH offer excellent performance, energy efficiency, and user-friendliness. Their combination of innovative technologies, durable design, and high output capacity make them exceptional choices for any establishment in need of reliable ice production. Whether for a bustling restaurant or a bar serving up cocktails, these machines deliver ice that consistently meets high standards.