Manitowoc Koolaire KD1800A User Manual

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Part Number 000012545 Rev 02 11/16

Ice Machines

K Series

Installation, Operation and Maintenance Manual

Table of Contents

Questions and Answers:

G
Gerald HaleAug 5, 2025
Why is my Manitowoc Ice Maker not releasing ice?
- N
  Nichole SloanAug 5, 2025
  If your Manitowoc Ice Maker isn't releasing ice properly or seems slow during harvest, several factors could be at play. First, the unit might be dirty, requiring a thorough cleaning and sanitization. Ensure the ice maker is level. For air-cooled models, verify the surrounding air temperature is at least 40°F (4°C). Finally, if you have a water-cooled model, a leaky water regulating valve in harvest mode could be the culprit, necessitating a replacement.
E
Eric BakerAug 9, 2025
How to troubleshoot a Manitowoc Koolaire KD1800A Ice Maker that does not operate?
- M
  Meagan TorresAug 9, 2025
  If your Manitowoc Ice Maker isn't operating, several issues could be the cause. First, check if there's electrical power reaching the machine by replacing the fuse, resetting the breaker, turning on the main switch, or ensuring the power cord is properly plugged into the receptacle. Make sure the ice machine is turned on by placing the toggle switch in the ICE position to start ice making. Finally, ensure the curtain is in the closed position and can swing freely.
W
Willie RojasAug 13, 2025
Why is the ice quality poor in my Manitowoc Koolaire KD1800A?
- K
  Katherine BlackAug 14, 2025
  If your Manitowoc Ice Maker is producing ice that is soft or not clear, it could be due to several reasons related to water quality. The incoming water quality might be poor, so you should contact a qualified service company to test it and recommend appropriate filters. The water filtration might be insufficient, so try replacing the filter. Also, the ice machine might be dirty, so cleaning and sanitizing it could help. If applicable, your water softener might be malfunctioning, so consider repairing it.
M
Michelle LambertAug 18, 2025
What to do if Manitowoc Koolaire KD1800A Ice Maker produces incomplete cubes?
- L
  Lisa JohnsonAug 18, 2025
  If your Manitowoc Ice Maker is producing shallow or incomplete cubes, or the ice fill pattern on the evaporator is incomplete, several factors could be responsible. The ice thickness float switch might be out of adjustment, requiring you to adjust it. The water trough level could be too high or too low, so check the water level and adjust as needed. Poor water filtration could be the issue, so replace the filter. The incoming water might be too hot, so connect the ice machine to a cold water supply. The incoming water pressure might be incorrect, so ensure it is within the range of 20-80 psi (137.9 - 551.5 kPa). Finally, the ice machine might not be level, so level it.
M
Mark SandovalAug 22, 2025
What to do if my Manitowoc Ice Maker stops and restarts?
- L
  loritannerAug 22, 2025
  If your Manitowoc Ice Maker stops and can only be restarted by turning it OFF and then ON, it indicates that the safety limit feature is stopping the ice machine. Please refer to 'Safety Limit Feature' on the next page.
S
Stacy MckenzieAug 27, 2025
Why won't my Manitowoc Koolaire KD1800A Ice Maker cycle into harvest mode?
- M
  Melanie GuerreroAug 27, 2025
  If your Manitowoc Ice Maker isn't cycling into harvest mode, it could be due to several reasons. The six-minute freeze time lock-in might not have expired yet, so wait for it to expire. The ice thickness float switch might be dirty, so clean and sanitize the ice machine. The ice thickness float switch wire might be disconnected, so connect the wire. The ice thickness float switch might be out of adjustment, so adjust it. Finally, if there is uneven ice fill (thin at top of evaporator), see 'Shallow or Incomplete Cubes' on the next page.
M
Melanie TaylorAug 30, 2025
Why is the ice sheet thick in my Manitowoc Koolaire KD1800A Ice Maker?
- B
  Brenda ThompsonAug 30, 2025
  If the ice sheet is too thick in your Manitowoc Ice Maker, it could be due to a couple of reasons. The water trough level might be too high, so adjust the ice thickness float. Alternatively, the power button might have been turned off/on during the freeze cycle, leaving ice on the evaporator, or the ice damper was opened then closed in the harvest cycle before the ice released, so allow the ice to thaw and release from the evaporator, then restart the machine.

Manitowoc Koolaire KD1800A Specifications

General

Brand	Manitowoc
Model	Koolaire KD1800A
Category	Ice Maker
Language	English

Summary

Safety Notices

General Safety Precautions

Electrical Installation Safety

Electrical requirements and precautions for safe installation.

Installation Safety Precautions

Safety measures to prevent injury during the installation process.

Operation and Maintenance Safety

Safety guidelines for operating and maintaining the ice machine.

Critical Danger and Warning Statements

Critical danger and warning notices for safe usage.

Section 2 Installation

Location of Ice Machine Criteria

Specifies criteria for selecting an appropriate installation location for the ice machine.

Clearance Requirements for Ventilation

Outlines necessary clearances around the ice machine for proper ventilation.

Bin Installation and Leveling

Electrical Service

Covers essential electrical requirements and code compliance for installation.

Electrical Requirements Details

Details voltage, amperage, and grounding requirements for safe installation.

Maximum Breaker and Circuit Amperage Chart

Water Supply and Drain Requirements

Outlines necessary water supply and drain connections and quality guidelines.

Water Supply and Drain Line Sizing

Remote Condenser and Line Set Installation

Calculating Remote Condenser Distances

Pressure Testing and Evacuating System

Outlines procedures for pressure testing and evacuating the refrigerant system.

Installation Completion Checklist

A checklist to verify correct installation before operation.

Final Steps Before Operation

Section 3 Operation

Ice Making Sequence Explanation

Explains the step-by-step process of ice making from water purge to harvest.

Safety Limit Feature Descriptions

Operational Checks Procedure

Ice Thickness Check and Adjustment

Section 4 Maintenance

Cleaning and Sanitizing Overview

Introduces the importance and frequency of cleaning and sanitizing the ice machine.

Cleaning and Sanitizing Procedure Steps

Provides step-by-step instructions for cleaning and sanitizing all ice-contact surfaces.

Condenser Cleaning Procedure

Section 5 Troubleshooting

Troubleshooting Common Problems

A systematic checklist to diagnose common ice machine operational issues.

Safety Limit Feature Troubleshooting

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