Manitowoc Q210 series - User Manual

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Technician’s

Handbook

This manual is updated as new information and models are

released. Visit our website for the latest manual.

www.manitowocice.com

America’s #1 Selling Ice Machine

Manitowoc

QM20/QM30/QM45

SM50

Q130/Q170/Q210/Q270

Undercounter

Ice Machines

Part Number 80-01111-9 7/10

Table of Contents

Questions and Answers:

M
Megan JimenezAug 8, 2025
What to do if my Manitowoc Q210 Ice Maker runs but no ice is produced?
- E
  elizabeth56Aug 8, 2025
  If your Manitowoc Ice Maker is running but not producing ice, there might be several reasons: * Ensure the ice machine has a water supply. * Verify the incoming water pressure is within the range of 20-80 psi (1.4-5.5 bar). * Check if the spray nozzle is blocked with mineral buildup; if so, clean and sanitize the ice machine. * Confirm the ambient temperature is between 50°F and 110°F (10°C and 43°C). * Refer to thermistor diagnostics.
A
Amy MartinezAug 15, 2025
Why is the freeze cycle long and ice production low on my Manitowoc Q210?
- A
  Adam JacksonAug 15, 2025
  A long freeze cycle and low ice production in your Manitowoc Ice Maker can be due to several factors: * The water temperature might be too high. Connect the machine to a cold water supply and check the check valves in faucets and other equipment. * The condenser might be dirty. Clean the condenser. * The air temperature entering the condenser may be too high. Ensure it does not exceed 120°F (39°C). * The water inlet valve filter screen could be dirty. Remove the water inlet valve and clean the filter screen. * The water inlet valve might be stuck open or leaking. Turn off the ice machine; if water continues to enter, verify water pressure and replace the valve if necessary. * There might be a refrigeration problem. Refer to refrigeration diagnostics.
P
Paul RiosAug 23, 2025
How to troubleshoot a Manitowoc Q210 that will not harvest?
- D
  David MurrayAug 23, 2025
  If your Manitowoc Ice Maker is not harvesting, here are a few things you can check: * Verify cubes are present in the evaporator and the freeze time exceeds the freeze chart cycle time. * Observe the control board light: a steady light indicates normal thermistor operation. * Reset the ice machine. * Verify the water inlet valve is energized during the entire harvest cycle and water flow is normal. * Check for power at the hot gas valve.
R
Robert RaymondAug 31, 2025
Why is the ice quality poor in my Manitowoc Q210 Ice Maker?
- S
  Steve SandersAug 31, 2025
  Poor ice quality in your Manitowoc Ice Maker, such as shallow, incomplete, or white cubes, can stem from: * A dirty ice machine. Clean and sanitize it. * Poor water filtration. Replace the filter. * An improperly working water softener (if applicable). Repair the water softener. * Poor incoming water quality. Contact a qualified company to test the water and recommend appropriate filters.

Manitowoc Q210 series Specifications

General

Type	Ice Maker
Model	Q210
Ice Production Capacity	210 lbs/day
Condenser	Air-cooled
Refrigerant	R-404A

Summary

Safety and Procedural Notices

Warning and Caution Definitions

Describes the purpose and format of warning and caution boxes used in the manual.

Before Proceeding

General Cautions and Warnings

Provides essential cautions and warnings before beginning installation or service.

General Information

Model Numbers and Safety

Lists covered ice machine models and includes a critical safety warning.

Model Number Decoding and Accessories

Model Number Decoding

Explains how to interpret the ice machine model number.

Available Accessories

Lists optional accessories like bin casters and cleaning supplies.

Model and Serial Number Location

Locating Identification Plates

Explains where to find the model and serial number plates on the machine.

Ice Machine Warranty Information

Commercial Warranty Coverage

Details the warranty terms for parts and labor for commercial use.

Residential Warranty Coverage

Warranty Scope and Obligations

Defines what the warranty covers, its duration, and manufacturer obligations.

Installation Guidelines

Location, Clearance, and Leveling

Criteria for installation site, required clearances, and leveling procedures.

Electrical Requirements and Specifications

Voltage, Fuses, and Ampacity

Covers voltage requirements, fuse/breaker needs, and total circuit ampacity.

Electrical Specifications Tables

Provides detailed electrical data for various ice machine models.

Water Service and Drain Connections

Water Supply and Drain Line Sizing

Guidelines for water supply, inlet lines, and drain connections.

Cooling Tower Applications

Water-Cooled Model Requirements

Specific operational requirements for water-cooled models using cooling towers.

Component Identification

Model-Specific Component Diagrams

Illustrates key components for various ice machine models.

Maintenance Procedures

Machine Inspection and Cleaning

Covers inspection, exterior cleaning, and condenser cleaning.

Interior Cleaning and Sanitizing

Detailed steps for cleaning and sanitizing internal ice machine parts.

Removal from Service and Winterization

Winterization Procedures

Steps for preparing air-cooled and water-cooled machines for winter.

Ice Machine Operation

Operational Cycles and Energized Parts

Describes startup, freeze, harvest cycles and component energization.

Operational Checks

Water Level and Ice Thickness Checks

Procedures for verifying water level and ice thickness.

Troubleshooting Common Issues

Machine Not Running Diagnosis

Steps to diagnose why the ice machine will not run.

Ice Quality and Production Problems

Troubleshooting poor ice quality, long cycles, and low production.

Refrigeration System Diagnostics

Pressure Analysis and Component Diagnosis

Guides for analyzing discharge/suction pressures and diagnosing components.

Component Check Procedures

Testing Fuses, Switches, and Thermistors

Procedures for checking main fuse, bin switch, thermostat, and thermistor.

Diagnosing Start Components and Probes

Capacitor, Relay, Probe, and Compressor Tests

Tests for compressor start components, ice thickness probe, and compressor.

Refrigerant Handling and System Cleanup

Recovery, Recharging, Contamination, and Policy

Procedures for refrigerant management and system contamination cleanup.

Performance Data Charts

Cycle Times, Ice Production, and Pressure Data

Tables providing performance data for various ice machine models.

Diagrams

Wiring and Tubing Schematics

Electrical wiring and tubing schematics for different ice machine models.

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