COVE DW2450 24 Inch Dishwasher Panel Ready User Manual

COVE DW2450 24 Inch Dishwasher Panel Ready

Product Information

Specifications

• Model : DW2450 and DW2450WS
• Service Manual : Available at service.subzero.com
• Customer Service: 800.222.7820

Error Codes and Troubleshooting
The product has error codes that indicate various issues and troubleshooting steps to resolve them.

Service Mode
Service mode allows a technician to review user settings, activate/deactivate components, and monitor the unit’s performance.

To enter Service mode:

1. Touch and hold the Auto and Heavy buttons for 5 seconds or more.
2. Release the Heavy button and continue to hold the Auto button for 5 seconds.
3. “Service Mode” will appear on the User Interface Module (UIM).

Service Mode Functions
Service mode allows two main functions:

1. To review user settings/offsets and monitor the unit’s performance.
2. To manually activate and deactivate components for testing purposes.

UIM Key Functions in Service Mode

requested position, PV =
current position
Options| Toggles drying fan ON/OFF| MOT3 (Drying fan motor)
Enter| Toggles water softener regeneration valve ON/OFF (if
applicable)| SOL2 (Water softener regeneration valve)
Cancel| Start| Toggles dispenser coil ON/OFF (300 ms ON, then OFF is the only
action)| SOL3 (Dispenser coil)

Error Codes

Fault-Level Error Codes
Fault-level errors involve safety concerns or indicate that the dishwasher is inoperable. Only repairing the actual fault will cancel a fault-level error.

Warning-Level Error Codes
Warning-level errors are not safety-related or catastrophic. They indicate that improper functionality of the unit may occur. A warning-level error can be canceled in Service mode, but it may reappear if the underlying condition persists.

Error Code Clearing

To clear all error codes:

1. Exit Service mode by touching and holding the Cancel key on the UIM.
2. Use the User Setup menu’s Reset All function.
3. Alternatively, you can clear all error codes by clearing the error log table in the Connected Diagnostics Program.

FAQ

How can I enter Service mode?
To enter Service mode, touch and hold the Auto and Heavy buttons for 5 seconds or more. Release the Heavy button and continue to hold the Auto button for 5 seconds. “Service Mode” will appear on the UIM.

How do I clear error codes?
To clear all error codes, exit Service mode by touching and holding the Cancel key on the UIM. Then, use the User Setup menu’s Reset All function. Alternatively, you can clear all error codes by clearing the error log table in the Connected Diagnostics Program.

SERVICE MODE
Service mode allows a technician to review various user settings/offsets, manually activate and deactivate components, and monitor the unit’s performance including logged errors.

In Service mode:

• Bluetooth pairing PIN messaging, Wi-Fi control via the Sub-Zero Group Owner’s App, error detection and management, and diverter valve movement are allowed.
• Pressure-based drain pump control is active.
• Standby Power mode, Smart Grid requests, wash cycles, or monitoring of any analog I/O are not allowed.
• When the sump fills, it always fills to the volume of “Main Wash #1” in the NORMAL wash cycle.

Service mode may be activated from the UIM panel, or via the RS-485 connection using the Connected Diagnostics program. Service mode exits after 5 minutes with no input.

ENTER SERVICE MODE

1. Touch and hold Auto and Heavy for 5 seconds or more.
2. Release Heavy, and continue to hold Auto for 5 seconds.
   • “Service Mode:” appears on the UIM.

SERVICE MODE FUNCTIONS
Service mode allows two main functions:

• Use the Cancel key to scroll through the error codes.
• Manually turn on and turn off components and systems to confirm the operation. Pressing a UIM key turns on the corresponding component or system; pressing the key again turns it off. Only one component or system can be turned on at a time.

UIM KEY FUNCTIONS IN SERVICE MODE

**FAULT-LEVEL ERROR CODES

**

Fault-level errors involve safety concerns or indicate that the dishwasher is inoperable. Only repairing the actual fault will cancel a fault-level error. It will continue to appear in the unit’s error code list until the fault is repaired.

When a fault-level error occurs:

• Any active functions, such as active wash cycles or UIM navigation, are exited.
• No user control of the unit is allowed, either by the UIM interaction or by the Sub-Zero Group Owner’s App.
• There may be an indication that a service call is required via a UIM message and tone or in the Sub-
• Zero Group Owner’s App.

WARNING-LEVEL ERROR CODES

Warning-level errors are not safety-related or catastrophic. They indicate that improper functionality of the unit may occur, such as poor wash performance. A warning-level error can be canceled in Service mode, but the error may reappear if the condition that caused the error still exists.

When a warning-level error occurs:

• The unit stays operable by the user, either by direct UIM interaction or by the Sub-Zero Group Owner’s App.
• An indication of the error may appear on the UIM when the door is open.

CLEAR ALL ERROR CODES

1. From the UIM, exit Service mode (touch and hold the Cancel key).
2. Use the User Setup menu’s “Reset All” function.
   • TIP: It is also possible to clear all error codes by clearing the error log table in the Connected Diagnostics Program.

CLEAR INDIVIDUAL ERROR CODES

From the UIM:

1. Enter Service mode.
2. Touch the Cancel key to scroll through any error codes.
   • Warning-level error codes will be cleared upon each touch.
   • Fault-level error codes need to be repaired first.
   • Some error codes automatically clear when they are repaired.
   • Some error codes require cycling power to the unit.
   • Some error codes require using “Reset All” in the User Options menu.

Error Codes and Troubleshooting

DW2450 AND DW2450WS ERROR CODE TABLE

ERROR CODE TABLE

IMPORTANT NOTE : The table’s error codes contain links to Answer Advisor articles. Click the error code number in the table for the most up-to- date information about the error code.

GENERAL TROUBLESHOOTING GUIDE

service.subzero.com 800.222.7820

828019 REV B 08/2023

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