A Quick Guide to Manitowoc Error Codes

Reading Time: 4 minutes Troubleshooting

ice machine error Codes

Ice machines run into problems from time to time, which is why manufacturers build service features to help users and technicians diagnose problems quickly. Like Hoshizaki beep codes, Manitowoc NXT ice machines have a series of notifications that inform users of potential problems. There are 36 Manitowoc error codes that cover a range of issues that occur within the unit.

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This list is only a reference. If you’re an Easy Ice customer who is experiencing one of these Manitowoc ice machine light codes, call one of our helpful service representatives as soon as you can. We’ll send one of our qualified ice machine technicians to your establishment as soon as possible.

Why You Shouldn’t Try to Fix Event Log Error Codes

Do not try and reset the ice machine or fix the issue yourself. A Manitowoc commercial ice maker is a complicated piece of machinery and you could risk damaging the unit. Instead, just make a note of the error codes presenting in the event log.

About Manitowoc Error Codes

Below is a list of Manitowoc error codes that cover everything from Manitowoc ice machine production issues to display screen problems. These codes can be viewed on your ice machine displays and should be monitored continuously in the ice machines event log.

A List of Manitowoc Error Codes


Error Code Description
E01 Long Freeze Cycle
E02 Long Harvest Cycle
E03 Input Power Loss
E04 High Condenser Temperature
E05 High Pressure Control Opened
E07 Starving TXV Single Evaporator or Low On Charge
E08 TXV Fault Single or Dual Circuit Evaporators
E09 Flooding Evaporator Fault Single Evaporator, Single Circuit
E10 Flooding Evaporator Fault Dual TXV, Dual Circuit
E11 Refrigeration Fault Curtain Fault
E12 Curtain Switch Fault – Open more than 24 hours
E15 Fan Cycle Control Fault – Low Liquid Line Temperature
E16 Remote Condensing Unit Fault (CVD Only)
E19 Ice Thickness Probe Fault
E20 Water System Fault
E21 T1 Temperature Sensor Issue
E22 T2 Temperature Sensor Issue
E23 T3 Temperature Sensor Issue
E24 T4 Temperature Sensor Issue
E25 Bin Level Probe Low Sensor Fault
E26 T6 or T7 Temperature Sensor Issue
E27 T6 or T7 Temperature Sensor Issue
E28 iAuCS
E29 USB Communication Fault
E30 USB Download Fault
E31 Safe Mode
E32 RS485 Communication Fault
E33 Touchscreen Fault
E34 Display Fault
E36 Check Sum Error
E37 Watch Dog Event
E38 UI Comm Event

How to Handle a Temperature Sensor Issue, Liquid Line Temperature Drops, and Other Defects

These errors show up in the event log in connection with issues like low production, a defective USB drive, a faulty freeze cycle, or a temperature outside the appropriate range. Some seem obvious to anyone, such as the USB download error-related messages. While obscure issues like compressor discharge temperature malfunctions or a bin level probe seem more obviously intimidating, it’s ultimately best to leave either issue alone.

It’s stressful when ice machines aren’t working how they should, but messing with the control board usually brings more harm than good. Leave the device plugged in and reach out to an expert to resolve your issue.

What to Do If You See a Manitowoc Error Code

If you see one of these Manitowoc ice machine light codes in the event log, it’s best to call a qualified ice machine technician—especially if you notice performance issues with your ice machine. A single error code can have many root causes, and an ice machine technician will have to run a series of tests to see what’s causing the issue.

open ice machine with internal components showing

That being said, there are some common freeze cycle issues or ice thickness probe problems you could fix on your own. If you’d like to see what you can do, we’ve put together this Manitowoc ice machine troubleshooting guide as a helpful resource.

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Call the Ice Experts

If you’re an Easy Ice customer you can call us anytime, 24/7, if your automatic ice machine is showing an error code or not working as it should. Don’t get lost in event logs and troubleshooting; not only is it unnecessary stress, but it can be hard to figure out. That’s what you have the Ice Experts for. Whether it’s an Indigo ice machine control board issue or a USB communication error, we can step in and set things right.

manitowoc ice machine on top of bin in warehouse

You’ll be back to ice-making in no time once we come to help. Give the Ice Experts a call today!

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