Manitowoc UYF0240A Technician's Handbook

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100 Part Number 000014797 Rev02 05/18

INSTALLATION/VISUAL INSPECTION CHECKLIST

Ice machine is not level

• Level the ice machine

Condenser is dirty

• Clean the condenser

Water filtration is plugged (if used)

• Install a new water filter

Water drains are not run separately and/or are not

vented

• Run and vent drains according to the Installation

Manual

Table of Contents

Default Chapter3
- Safety Notices3
- Table of Contents9
General Information17
- Model Numbers17
- How to Read a Model Number19
- Ice Machine Warranty Information19
Installation21
- Location of Ice Machine21
- Ice Machine Clearance Requirements22
- Ice Machine Heat of Rejection22
- Leveling the Ice Machine23
- Electrical Requirements24
- Electrical Specifications24
- Water Service/Drains26
  - Water Supply26
  - Cooling Tower Applications27
Maintenance29
- Cleaning and Sanitizing Procedure29
- U240, U31029
- Cleaning and Sanitizing Procedure UDE06544
  - Cleaning the Condenser50
  - Removal from Service/Winterization51
- Cleaning and Sanitizing Procedure UDE08052
  - Cleaning the Condenser63
  - Removal from Service/Winterization64
Sequence of Operation U0140/UF0140/U019065
Uf0190/U240/Uf240/U310/Uf31065
- Touch Pad Features65
Ice Making Sequence of Operation68
- Control Board Revisions68
- Software Revisions68
- Sequence of Operation69
- Control Board Timers71
- Safety Limits72
- U310/UF310 Energized Parts Chart74
Operational Checks76
- Ice Thickness Check76
- Ice Thickness Adjustment76
- Minimum/Maximum Slab Weight77
Sequence of Operation UDE06578
- UDE065 Energized Parts Chart80
- Ice Thickness Adjustment81
Sequence of Operation UDE08082
- UDE080 Energized Parts Chart84
Operational Checks UDE08086
- Siphon System86
- Water Level86
- Water Level Check87
- Ice Thickness Check88
Troubleshooting89
- Troubleshooting U0140/UF0140/U019089
- Uf0190/U240/Uf240/U310/Uf31089
Troubleshooting UDE065130
- Diagnosing an Ice Machine that will Not Run130
- Refrigeration Diagnostics Overview UDE065131
- Normal Operation132
- Ice Production Check134
- Installation/Visual Inspection Checklist136
- Water System Checklist137
UDE065 Refrigeration Diagnostics138
- Flooding Expansion Valve Symptoms139
- Starving Expansion Valve/Low Refrigerant139
- Charge Symptoms139
- Overcharged System Symptoms139
- Analyzing Ice Formation Pattern140
- Analyzing Discharge Line Temperature142
- Analyzing Suction Line Temperature144
- Comparing Evaporator Inlet/Outlet147
- Temperatures147
- Discharge Line Temperature Analysis148
- Harvest Valve150
Troubleshooting UDE080154
- Diagnosing an Ice Machine that will Not Run154
- Safety Limit Feature155
- Diagnosing Ice Thickness Control Circuitry160
- Ice Production Check162
- Installation/Visual Inspection Checklist164
- Water System Checklist165
- Flooding Expansion Valve Symptoms167
- Starving Expansion Valve/Low Refrigerant167
- Charge Symptoms167
- Overcharged System Symptoms167
- Analyzing Ice Formation Pattern168
- Analyzing Discharge Line Temperature170
- Analyzing Suction Line Temperature172
- Comparing Evaporator Inlet/Outlet175
- Temperatures175
- Discharge Line Temperature Analysis176
- Harvest Valve178
Component Check Procedures183
- Main Fuse183
- Bin Switch184
- Uf240/U310/Uf310186
- Touch Pad186
- U310/Uf310188
- Float Switch188
- U310/Uf310190
- Water Trough Thermistor190
- Bin Thermostat192
- Ude065192
- Liquid Line Thermistor193
- Ude065193
- ON/OFF/WASH Toggle Switch195
- Ude065/Ude080195
- Compressor Electrical Diagnostics196
- Fan Cycle Control198
- Uf240/U310/Uf310198
- High Pressure Cutout (HPCO) Control199
- Uf240/U310/Uf310199
Filter-Driers200
Refrigerant Recovery/Evacuation201
- Definitions201
- Refrigerant Re-Use Policy202
- Recovery and Recharging Procedures204
- U310/Uf310204
- Recovery and Recharging Procedures207
- Ude065/Ude080207
System Contamination Cleanup210
- Determining Severity of Contamination210
- Mild System Contamination Cleanup212
- Procedure212
- Severe System Contamination Cleanup213
- Procedure213
- Replacing Pressure Controls Without214
- Removing Refrigerant Charge214
Total System Refrigerant Charge216
- Cycle Times, 24 Hr. Ice Production and Refrigerant Pressure Charts217
- UDE065 Operating Temperatures218
- UDE080 Self-Contained Air-Cooled220
- UDE080 Operating Temperatures221
- U0140/UF0140 Self-Contained Air-Cooled222
- U0140 Self-Contained Water-Cooled223
- U0190/UF0190 Self-Contained Air-Cooled224
- U0240/UF0240 Self-Contained Air-Cooled225
- U0240/UF0240 Self-Contained Water-Cooled226
- U0310/UF0310 Self-Contained Air-Cooled227
- U0310/UF0310 Self-Contained Water-Cooled228
Wiring Diagrams229
- UDE065 Wiring Diagram230
- UDE080 Wiring Diagram232
- Water233
- U0140/U0190/U0240 Wiring Diagram236
- With J4 Thermistor Terminal - 1Ph Air/Water236
- U0140/U0190/U0240 Wiring Diagram237
- U0140/U0190/U0240 Wiring Diagram238
- Prior to Thermistor Terminal - 1PH Air/Water238
- U0140/U0190/U0240 Wiring Diagram239
- UF0310 Wiring Diagram 1PH Air/Water240
- U0310 Wiring Diagram with J4 Thermistor Terminal - 1Ph Air/Water242
- U0310 Wiring Diagram243
- U0310 Wiring Diagram Prior to Thermistor Terminal - 1PH Air/Water244
- U0310 Wiring Diagram245
Electronic Control Boards246
- Electronic Control Board UF Models246
- Electronic Control Board U Models with J4248
- Thermistor Terminal248
- Electronic Control Board U Models Prior to250
- Thermistor Terminal250
- Electronic Control Board UDE065252
- Electronic Control Board UDE080254
Tubing Schematics256
- Tubing Schematic - UDE065256
- Tubing Schematic - UDE080/U0140/UF0140257
- Tubing Schematic - U0190/UF0190/U0240257

Other manuals for Manitowoc UYF0240A

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Questions and Answers:

W
wongveronicaAug 13, 2025
How to troubleshoot a Manitowoc Ice Maker that does not operate?
- M
  michelle75Aug 13, 2025
  If your Manitowoc Ice Maker isn't operating, there could be several reasons. First, check the power supply: ensure the machine is plugged in, the main switch is on, the breaker hasn't tripped, and the fuse is intact. If power isn't the issue, make sure the ice machine is turned on by pressing the On/Off button. Lastly, confirm that the damper is in the upright position and can swing freely.

Manitowoc UYF0240A Specifications

General

Type	Undercounter Ice Maker
Condenser Type	Air-Cooled
Refrigerant	R404A
Ice Storage Capacity	80 lb
Width	24 inches
Power Supply	115V/60Hz
Water Connection	3/8 inch

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