Setup: Manitowoc Indigo Control Board Replacement Instruction Manual

Overview

The Indigo Control Board Replacement procedure programs a replacement control board for a Manitowoc Indigo ice machine. The board must receive the machine’s model and serial information so it can use the correct operating and diagnostic data.

Use USB Setup when the existing board still operates well enough to export its stored information. Use Manual Setup when the original board is inoperative, damaged, or unable to provide reliable asset data.

Specifications

• Supported setup methods: USB Setup and Manual Setup.
• Data-transfer interface: USB port on the ice machine control board.
• Required identification: machine model number and serial number.
• USB export time from the original board: approximately 5 to 10 minutes.
• USB import time to the replacement board: usually a few seconds.
• Required voltage suffixes:
  • -161: 115/60/1
  • -261: 208–230/60/1
  • -263: 208–230/60/3
  • -251: 230/50/1
  • -463: 460/60/3

Detailed Description

The Indigo control board manages machine operation and stores configuration, asset, operating, real-time, and settings data. During a board change, this information can either be transferred from a flash drive or entered directly through the display.

An Export ALL operation creates four files on the flash drive: asset data, operating data, real-time data, and settings. An Export Setup operation transfers only the settings file and is intended for applying the same configuration to multiple machines.

After installation, the replacement control board can operate with factory defaults. Customized settings may be restored through USB Setup or selected manually from the Setup menu.

Safety

• Disconnect electrical power before removing or replacing the control board.
• Do not remove the original board until required data has been exported if USB Setup will be used.
• Use a properly formatted flash drive without built-in software programs.
• Confirm the model and voltage information directly from the machine data plate before entering it.
• Do not interrupt power or remove the flash drive while data is being transferred.

Setup and Operation

Choose the Setup Method

• USB Setup: Select this method when the original board remains operational and its stored information can be retrieved.
• Manual Setup: Select this method when the original board is shorted, nonoperational, or unable to provide usable asset data.

Export Data from the Original Board

1. Turn on the ice machine power.
2. Press Menu.
3. Use the Down button to highlight Service, then press the Checkmark button.
4. Highlight USB Setup and press the Checkmark button.
5. When USB Stick is highlighted, press the Checkmark button again.
6. Select Export ALL, then press the Checkmark button.
7. Insert the prepared flash drive into the USB port when the display requests it.
8. Press the Checkmark button to begin the export.
9. Wait approximately 5 to 10 minutes. Do not disconnect power during this process.
10. Continue only after the display shows Export Complete or Success.
11. Disconnect power before replacing the control board.

Install and Access the Replacement Board

After power is applied to the replacement board, the display should provide Manual Setup and USB Setup. On boards with earlier firmware, access the same choices through the service menu:

1. Press Menu.
2. Highlight Service and press the Checkmark button.
3. Highlight Replacement Control Board.
4. Press the Checkmark button to open the setup choices.

Import Data with USB Setup

1. Highlight USB Setup and press the Checkmark button.
2. Insert the flash drive containing the exported files into the replacement board’s USB port.
3. Press the Checkmark button when prompted.
4. Wait a few seconds for the transfer to finish.
5. Confirm that Manual Setup and USB Setup appear again after the download.

Enter Information with Manual Setup

1. Open Menu > Service > Replacement Control Board > Manual Setup.
2. Press the Checkmark button.
3. Check the automatically populated date. If it is correct, continue to the model field.
4. If the date is incorrect, highlight the date and press Right to activate the cursor.
5. Use Up and Down to select each value, pressing Right to move across the date.
6. When the date is correct, move to Input Model#.
7. Press Right to activate the model field.
8. Use Up and Down to select each character. Press Right after each character to move to the next position.
9. Enter the complete model number exactly as shown on the machine data plate, including the correct voltage suffix.
10. Press Right until the cursor disappears.
11. Move to Input Serial# and enter the serial number using the same controls.
12. Move to Exit > and press the Checkmark button.
13. Allow the brief processing delay until the display returns to the Manual Setup screen.
14. Disconnect and reapply power so the board can reboot with the new identification data.

Verify the Programming

After the board restarts, confirm the stored information through the machine display:

• Model: Menu > Machine Information > Model
• Serial number: Menu > Machine Information > IMH Serial

If the model-entry screen reports an error, compare the entry with the data plate and repeat the model setup. Pay particular attention to the voltage suffix.

Restore Settings Through the Service Menu

1. Turn on the ice machine.
2. Open Menu > Service > USB Setup.
3. Select USB Stick, then press the Checkmark button.
4. Select Download Cnf.
5. Insert the flash drive containing the saved settings.
6. Press the Checkmark button.
7. Wait a few seconds for the configuration transfer.
8. Continue only after SUCCESS appears.

Change Settings Manually

From the main menu, highlight Setup and press the Checkmark button. Select the required machine settings, then press the Left button to return to the previous screen.

The documented factory defaults include English language, USA Central Time, month/day/year with 24-hour time, Fahrenheit, pounds, gallons, ice clarity off, LCD brightness level 2, password protection on, the default password set to 1234, password editing off, Clean Minder off, AuCS runtime off, air filter off, water filter off, LUMINICE off, and no ice-bin sensor.

Troubleshooting

• USB export does not complete: Confirm that the machine has power, the flash drive is inserted fully, and the drive does not contain built-in software. Restart the export only after the display has stopped processing.
• The replacement board does not show setup choices: Open the Service menu and select Replacement Control Board, then choose USB Setup or Manual Setup.
• The model number is rejected: Recheck every character against the data plate and include the dash and correct voltage suffix.
• The serial number is incorrect: Repeat Manual Setup and enter the serial number exactly as displayed on the machine data plate.
• Transferred settings are missing: Verify that the original export included the settings file, then use Service > USB Setup > Download Cnf.
• Information does not appear correctly after programming: Disconnect and restore power, allow the board to reboot, and verify the Model and IMH Serial fields under Machine Information.

Pros & Cons

• Pros: USB transfer can preserve stored machine information and configuration settings, while Manual Setup provides a recovery path when the original board cannot be read.
• Pros: The display guides the technician through export, import, and programming operations.
• Cons: USB Setup requires the original board to remain operational and requires a correctly prepared flash drive.
• Cons: Manual entry is sensitive to model characters, serial-number accuracy, and the required voltage suffix.