Download Print this page
Hide thumbs Also See for DW2450:

Advertisement

Quick Links

 
General Information
 
SERVICE MANUAL INTRODUCTION
This service manual helps with troubleshooting and
diagnosing malfunctions, completion of repairs, and return
of the product to proper operating condition. Read the
complete instructions contained within before initiating any
repairs.
This guide is intended for use by Factory Certified Service.
Cove Appliance, Inc. recommends that only Factory
Certified Service companies do repairs.
Warning and Caution product safety labels appear
throughout this manual. Product safety labels appear at the
beginning of some sections. Follow the instructions in the
product safety labels to avoid personal injury and/or
product damage. The sample safety labels explain the
types of notices that appear in this manual.
WARNING:
States a hazard that may cause serious injury or
death if precautions are not followed.
CAUTION:
Indicates minor injury or product damage may
occur if precautions are not followed.
IMPORTANT: Highlights especially important
information.
TIP: Indicates additional, useful information.
Information and images contained herein are copyright of
Cove Appliance, Inc. Neither this manual nor any
information or images contained herein may be copied or
used in whole or in part without the express written
consent of Cove Appliance, Inc. © Cove Appliance, Inc., all
rights reserved.
828019 REV B
08/2023
DW2450 and DW2450WS Service Manual
COVE PRODUCT RATING PLATE INFORMATION
The product rating information is located inside the
dishwasher tub on the left-hand side.
Important information for each product is listed on the
product rating plate. Rating plates identify:
Model name and part number
Electrical and power specifications
Serial number
1
service.subzero.com
800.222.7820

Advertisement

loading
Need help?

Need help?

Do you have a question about the DW2450 and is the answer not in the manual?

Questions and answers

CYNTHIA
January 17, 2025

What is the connected load of the CDW2450WS?

george
April 14, 2025

How do I reset my Cove? Seems to stuck on run.ds

Summary of Contents for Cove DW2450

  • Page 1 Cove Appliance, Inc. Neither this manual nor any information or images contained herein may be copied or used in whole or in part without the express written consent of Cove Appliance, Inc. © Cove Appliance, Inc., all rights reserved. 828019 REV B...
  • Page 2 DW2450 and DW2450WS Service Manual   General Information service.subzero.com 800.222.7820 MODEL DESCRIPTIONS AND SALES ACCESSORIES For more details on individual model descriptions and a listing of all compatible sales accessories, see the Cove Product and Sales Accessory Reference Guide. COVE DISHWASHER MODEL KEY...
  • Page 3 WASH CYCLES The Cove dishwasher has four wash cycles, Auto, Normal, WATER SOFTENER Heavy, and Quick, available as keys on the dishwasher's user interface module (UIM). Additional cycles for specific...
  • Page 4 DW2450 and DW2450WS Service Manual   Controls and Operation service.subzero.com 800.222.7820 DIVERTER VALVE UIM AND TUB LIGHT BEHAVIOR The diverter valve helps control water flow depending on UIM lighting and tub lighting operation are synchronized. the selected wash cycle. •...
  • Page 5 DW2450 and DW2450WS Service Manual   Controls and Operation service.subzero.com 800.222.7820 WASH CYCLES AND USER CONTROL NORMAL CYCLE The dishwasher's menu is arranged as a multi-level tree The Normal cycle uses the turbidity of the water and its with pre-assigned UIM keys to navigate up/down and left/ change over time to decide the duration and intensity.
  • Page 6 DW2450 and DW2450WS Service Manual   Controls and Operation service.subzero.com 800.222.7820 SET CYCLE OPTIONS INTERRUPT A CYCLE To interrupt a cycle: Select the desired wash cycle. Touch Options. Open the door. Touch Options multiple times to scroll through cycle To restart the cycle, touch Start and close the door options.
  • Page 7 DW2450 and DW2450WS Service Manual   Controls and Operation service.subzero.com 800.222.7820 SET USER OPTIONS USE THE "RESET ALL" FUNCTION Touch Cancel twice. Touch and hold the Options key for 10 seconds to Touch and hold Options for approximately 10 enter the User Setup menu.
  • Page 8 DW2450 and DW2450WS Service Manual   Controls and Operation service.subzero.com 800.222.7820 MODES USER MODE Modes are the dishwasher's operational states, in which User mode is the normal, day-to-day operation mode of the the dishwasher varies its behavior according to instructions dishwasher.
  • Page 9 DW2450 and DW2450WS Service Manual   Controls and Operation service.subzero.com 800.222.7820 SABBATH MODE CHILD LOCK MODE Sabbath mode places the unit in a state of reduced Child Lock mode allows the user to lock the control system operation specifically for the Sabbath. In Sabbath mode: to prevent tampering by children or other unauthorized individuals.
  • Page 10 DW2450 and DW2450WS Service Manual   Controls and Operation service.subzero.com 800.222.7820 SHOWROOM MODE Showroom mode is used to demonstrate the unit operation in an environment where no water supply or drain is available. In Showroom mode: • The entire UIM menu operates, and all wash cycles are simulated and accelerated.
  • Page 11 DW2450 and DW2450WS Service Manual   Door Component Removal and Installation service.subzero.com 800.222.7820   STRIKE PLATE REMOVAL STRIKE PLATE INSTALLATION REMOVE THE STRIKE PLATE INSTALL THE STRIKE PLATE Open the door. Insert the strike plate into the unit. Use a T-25 Torx bit to remove the mounting screw Use a T-25 Torx bit to install the mounting screw.
  • Page 12 DW2450 and DW2450WS Service Manual   Door Component Removal and Installation service.subzero.com 800.222.7820 DOOR PANEL REMOVAL DOOR PANEL INSTALLATION REMOVE THE DOOR PANEL INSTALL THE DOOR PANEL Open the door. Install the door panel pins into the keyhole slots. Use a "...
  • Page 13 DW2450 and DW2450WS Service Manual   Door Component Removal and Installation service.subzero.com 800.222.7820 Remove the door from the unit. DOOR REMOVAL CAUTION After the door assembly is removed, be WARNING careful to avoid denting or bending the front Disconnect the product from the power source surface of the tub bottom.
  • Page 14 DW2450 and DW2450WS Service Manual   Door Component Removal and Installation service.subzero.com 800.222.7820 DOOR LOWER SEAL REMOVAL DOOR LOWER SEAL INSTALLATION After installing the door lower seal, install: WARNING Disconnect the product from the power source Door before starting this procedure.
  • Page 15 DW2450 and DW2450WS Service Manual   Door Component Removal and Installation service.subzero.com 800.222.7820 DISPENSER REMOVAL DISPENSER INSTALLATION After installing the dispenser, install: WARNING Disconnect the product from the power source Door panel before starting this procedure. To remove the dispenser, first remove:...
  • Page 16 DW2450 and DW2450WS Service Manual   Door Component Removal and Installation service.subzero.com 800.222.7820 STATUS LIGHT REMOVAL STATUS LIGHT INSTALLATION After installing the status light, install: WARNING Disconnect the product from the power source Door panel before starting this procedure. To remove the status light, first remove:...
  • Page 17 DW2450 and DW2450WS Service Manual   Door Component Removal and Installation service.subzero.com 800.222.7820 DOOR LOWER BRACE REMOVAL DOOR UPPER BRACE REMOVAL To remove the door lower brace, first remove: To remove the door upper brace, first remove: Door panel Door panel...
  • Page 18 DW2450 and DW2450WS Service Manual   Door Component Removal and Installation service.subzero.com 800.222.7820 DOOR LATCH REMOVAL DOOR LATCH INSTALLATION After installing the door latch, install: WARNING Disconnect the product from the power source Door upper brace before starting this procedure.
  • Page 19 DW2450 and DW2450WS Service Manual   Door Component Removal and Installation service.subzero.com 800.222.7820 USER INTERFACE MODULE REMOVAL USER INTERFACE MODULE INSTALLATION After installing the user interface module, install: WARNING Disconnect the product from the power source Door lower brace before starting this procedure.
  • Page 20 DW2450 and DW2450WS Service Manual Door Component Removal and Installation service.subzero.com 800.222.7820 DOOR CABLE REMOVAL DOOR CABLE SPRING REMOVAL To remove the door cable, first uninstall the unit To remove the door cable spring, first uninstall the unit. enough to access both ends of the door cable.
  • Page 21 DW2450 and DW2450WS Service Manual   Door Component Removal and Installation service.subzero.com 800.222.7820 DOOR ADJUSTER PULLEY REMOVAL DOOR ADJUSTER PULLEY INSTALLATION To remove the door adjuster pulley, first uninstall the unit. After installing the door adjuster pulley, install: Then, remove:...
  • Page 22 DW2450 and DW2450WS Service Manual   Exterior Component Removal and Installation service.subzero.com 800.222.7820   COLLAR INSULATION REMOVAL TOP AND SIDE INSULATION REMOVAL To remove the collar insulation, first uninstall the unit. To remove the top and side insulation, first uninstall the unit.
  • Page 23 DW2450 and DW2450WS Service Manual   Exterior Component Removal and Installation service.subzero.com 800.222.7820 REAR INSULATION REMOVAL DRAIN HOSE REMOVAL To remove the rear insulation, first uninstall the unit. WARNING Turn off the power and water to the product before starting this procedure.
  • Page 24 DW2450 and DW2450WS Service Manual   Exterior Component Removal and Installation service.subzero.com 800.222.7820 TUB SEAL REMOVAL KICKPLATE REMOVAL REMOVE THE TUB SEAL REMOVE THE KICKPLATE Open the door. Pull the kickplate forward off of the unit. Remove the tub seal from the seal retainers.
  • Page 25 DW2450 and DW2450WS Service Manual   Exterior Component Removal and Installation service.subzero.com 800.222.7820 KICKPLATE BRACKET REMOVAL LOWER FRONT COVER REMOVAL To remove the kickplate bracket, first remove: To remove the lower front cover, first remove: Kickplate Door panel Kickplate REMOVE THE KICKPLATE BRACKET...
  • Page 26 DW2450 and DW2450WS Service Manual   Exterior Component Removal and Installation service.subzero.com 800.222.7820 LOWER FRONT COVER INSTALLATION UPPER FRONT COVER REMOVAL After installing the lower front cover, install: WARNING Disconnect the product from the power source Door panel before starting this procedure.
  • Page 27 DW2450 and DW2450WS Service Manual   Exterior Component Removal and Installation service.subzero.com 800.222.7820 UPPER FRONT COVER INSTALLATION TUB LED HOUSING REMOVAL After installing the upper front cover, install: WARNING Disconnect the product from the power source Lower front cover before starting this procedure.
  • Page 28 DW2450 and DW2450WS Service Manual   Exterior Component Removal and Installation service.subzero.com 800.222.7820 TUB LED LENS REMOVAL TUB LED WIRE HARNESS REMOVAL WARNING WARNING Disconnect the product from the power source Disconnect the product from the power source before starting this procedure.
  • Page 29 DW2450 and DW2450WS Service Manual   Exterior Component Removal and Installation service.subzero.com 800.222.7820 AIR DRIER ELBOW MANIFOLD REMOVAL MAIN CONTROL MODULE REMOVAL To remove the air drier elbow manifold, first uninstall the WARNING unit. Then, remove: Disconnect the product from the power source before starting this procedure.
  • Page 30 DW2450 and DW2450WS Service Manual   Exterior Component Removal and Installation service.subzero.com 800.222.7820 MAIN CONTROL MODULE INSTALLATION REAR ACCESS COVER REMOVAL After installing the main control module, install: To remove the rear access cover, first uninstall the unit. Then, remove:...
  • Page 31 DW2450 and DW2450WS Service Manual   Exterior Component Removal and Installation service.subzero.com 800.222.7820 DRAIN FLEX HOSE REMOVAL DRAIN FLEX HOSE INSTALLATION After installing the drain flex hose, install: WARNING Turn off the power and water to the product Rear access cover before starting this procedure.
  • Page 32 DW2450 and DW2450WS Service Manual   Exterior Component Removal and Installation service.subzero.com 800.222.7820 Remove the feed tube from the middle feed tube FEED TUBE REMOVAL seal, and remove the middle feed tube gasket. WARNING Remove the top of the feed tube from the unit, and Turn off the power and water to the product remove the top feed tube gasket.
  • Page 33 DW2450 and DW2450WS Service Manual   Exterior Component Removal and Installation service.subzero.com 800.222.7820 Install the upper spray arm nut onto the feed tube. FEED TUBE INSTALLATION CAUTION When servicing, use caution and monitor the unit for leaks before installing the unit into the product opening.
  • Page 34 DW2450 and DW2450WS Service Manual   Exterior Component Removal and Installation service.subzero.com 800.222.7820 AIR BREAK REMOVAL WARNING Turn off the power and water to the product before starting this procedure. To remove the air break, first uninstall the unit. Then,...
  • Page 35 DW2450 and DW2450WS Service Manual   Exterior Component Removal and Installation service.subzero.com 800.222.7820 AIR BREAK INSTALLATION CAUTION When servicing, use caution and monitor the unit for leaks before installing the unit into the product opening. After installing the air break, install:...
  • Page 36 DW2450 and DW2450WS Service Manual   Interior Component Removal and Installation service.subzero.com 800.222.7820   UPPER RACK REMOVAL UPPER SPRAY ARM REMOVAL To remove the upper spray arm, first remove: REMOVE THE UPPER RACK Upper rack Open the door. Pull the upper rack forward.
  • Page 37 DW2450 and DW2450WS Service Manual   Interior Component Removal and Installation service.subzero.com 800.222.7820 MIDDLE RACK REMOVAL MIDDLE RACK INSTALLATION REMOVE THE MIDDLE RACK INSTALL THE MIDDLE RACK Open the door. Install the middle rack into the rails. Pull the middle rack forward.
  • Page 38 DW2450 and DW2450WS Service Manual   Interior Component Removal and Installation service.subzero.com 800.222.7820 MIDDLE SPRAY ARM ASSEMBLY REMOVAL MIDDLE SPRAY ARM REMOVAL To remove the middle spray arm assembly, first remove: REMOVE THE MIDDLE SPRAY ARM Middle rack While holding onto the middle spray arm coupler, turn the middle spray arm clockwise (when seen from REMOVE THE MIDDLE SPRAY ARM ASSEMBLY...
  • Page 39 DW2450 and DW2450WS Service Manual   Interior Component Removal and Installation service.subzero.com 800.222.7820 MIDDLE SPRAY ARM COUPLER REMOVAL MIDDLE SPRAY ARM COUPLER INSTALLATION To remove the middle spray arm coupler, first remove: CAUTION When servicing, use caution and monitor the unit...
  • Page 40 DW2450 and DW2450WS Service Manual   Interior Component Removal and Installation service.subzero.com 800.222.7820 INNER RAIL REMOVAL LOWER RACK REMOVAL To remove the inner rail, first remove: REMOVE THE LOWER RACK Middle rack upper rack, as appropriate Open the door. Pull the lower rack forward.
  • Page 41 DW2450 and DW2450WS Service Manual   Interior Component Removal and Installation service.subzero.com 800.222.7820 LOWER SPRAY ARM REMOVAL SUMP FILTER SCREEN AND FINE FILTER REMOVAL To remove the lower spray arm, first remove: To remove the sump filter screen and fine filter, first...
  • Page 42 DW2450 and DW2450WS Service Manual   Interior Component Removal and Installation service.subzero.com 800.222.7820 Rotate the feed tube to the side to gain access to the WATER COUPLER REMOVAL inner feed tube bracket. WARNING Use a T-15 Torx bit to remove the water coupler Turn off the power and water to the product mounting screws.
  • Page 43 DW2450 and DW2450WS Service Manual   Interior Component Removal and Installation service.subzero.com 800.222.7820 Insert the top inside bracket assembly. WATER COUPLER INSTALLATION Place the top feed tube bracket cover onto the unit. CAUTION Use a ” socket to install the nuts onto the top When servicing, use caution and monitor the unit feed tube bracket cover.
  • Page 44 DW2450 and DW2450WS Service Manual   Interior Component Removal and Installation service.subzero.com 800.222.7820 TUB SIDE/CEILING COVER AND GASKET REMOVAL TUB SIDE/CEILING COVER AND GASKET INSTALLATION To remove a tub side/ceiling cover and the gasket under it, first remove: After installing a tub side/ceiling cover and the gasket under it, install: Upper rack...
  • Page 45 DW2450 and DW2450WS Service Manual   Base Component Removal and Installation service.subzero.com 800.222.7820   AIR DRIER DUCT REMOVAL FLOAT AND FLOAT SWITCH REMOVAL To remove the air drier duct, first remove: WARNING Disconnect the product from the power source Door panel before starting this procedure.
  • Page 46 DW2450 and DW2450WS Service Manual   Base Component Removal and Installation service.subzero.com 800.222.7820 FLOAT AND FLOAT SWITCH INSTALLATION DOOR ADJUSTER BLOCK REMOVAL After installing the float and float switch, install: WARNING Disconnect the product from the power source Lower front cover before starting this procedure.
  • Page 47 DW2450 and DW2450WS Service Manual   Base Component Removal and Installation service.subzero.com 800.222.7820 DOOR ADJUSTER BLOCK INSTALLATION After installing the door adjuster block, install: Lower front cover Kickplate Door panel Set the door tension according to the product's Installation Guide.
  • Page 48 DW2450 and DW2450WS Service Manual   Base Component Removal and Installation service.subzero.com 800.222.7820 WASH PUMP REMOVAL WASH PUMP INSTALLATION CAUTION WARNING When servicing, use caution and monitor the unit Turn off the power and water to the product for leaks before installing the unit into the product before starting this procedure.
  • Page 49 DW2450 and DW2450WS Service Manual   Base Component Removal and Installation service.subzero.com 800.222.7820 DRAIN PUMP REMOVAL DRAIN PUMP INSTALLATION CAUTION WARNING When servicing, use caution and monitor the unit Turn off the power and water to the product for leaks before installing the unit into the product before starting this procedure.
  • Page 50 DW2450 and DW2450WS Service Manual   Base Component Removal and Installation service.subzero.com 800.222.7820 SUMP STIFFENER INSERT REMOVAL SUMP STIFFENER INSERT INSTALLATION CAUTION WARNING When servicing, use caution and monitor the unit Turn off the power and water to the product for leaks before installing the unit into the product before starting this procedure.
  • Page 51 DW2450 and DW2450WS Service Manual   Base Component Removal and Installation service.subzero.com 800.222.7820 WIRELESS MODULE REMOVAL WIRELESS MODULE INSTALLATION After installing the wireless module, install: WARNING Disconnect the product from the power source Upper front cover before starting this procedure.
  • Page 52 DW2450 and DW2450WS Service Manual   Base Component Removal and Installation service.subzero.com 800.222.7820 SUMP GASKET REMOVAL SUMP GASKET INSTALLATION After installing the sump gasket, install: WARNING Turn off the power and water to the product Sump filter screen and fine filter before starting this procedure.
  • Page 53 DW2450 and DW2450WS Service Manual   Base Component Removal and Installation service.subzero.com 800.222.7820 DRAIN VALVE REMOVAL DRAIN VALVE INSTALLATION CAUTION WARNING When servicing, use caution and monitor the unit Turn off the power and water to the product for leaks before installing the unit into the product before starting this procedure.
  • Page 54 DW2450 and DW2450WS Service Manual   Base Component Removal and Installation service.subzero.com 800.222.7820 WATER INLET VALVE REMOVAL WARNING Turn off the power and water to the product before starting this procedure. To remove the water inlet valve, first remove: Lower rack...
  • Page 55 DW2450 and DW2450WS Service Manual   Base Component Removal and Installation service.subzero.com 800.222.7820 Use pliers to install the hose clamp onto the water WATER INLET VALVE INSTALLATION inlet valve hose. CAUTION Connect the wire connector to the water inlet valve.
  • Page 56 DW2450 and DW2450WS Service Manual   Base Component Removal and Installation service.subzero.com 800.222.7820 FRONT THERMAL CUTOUT AND BRACKET REMOVAL WARNING Disconnect the product from the power source before starting this procedure. To remove the front thermal cutout, first remove: Door panel...
  • Page 57 DW2450 and DW2450WS Service Manual   Base Component Removal and Installation service.subzero.com 800.222.7820 FRONT THERMAL CUTOUT AND BRACKET INSTALLATION CAUTION When servicing, use caution and monitor the unit for leaks before installing the unit into the product opening. After installing the front thermal cutout and bracket, first connect the temperature and turbidity sensor wire connectors.
  • Page 58 DW2450 and DW2450WS Service Manual   Base Component Removal and Installation service.subzero.com 800.222.7820 TEMPERATURE AND TURBIDITY SENSOR REMOVAL WARNING Turn off the power and water to the product before starting this procedure. To remove the temperature and turbidity sensor, first...
  • Page 59 DW2450 and DW2450WS Service Manual   Base Component Removal and Installation service.subzero.com 800.222.7820 TEMPERATURE AND TURBIDITY SENSOR AIR DRIER MANIFOLD REMOVAL INSTALLATION WARNING CAUTION Disconnect the product from the power source before starting this procedure. When servicing, use caution and monitor the unit for leaks before installing the unit into the product opening.
  • Page 60 DW2450 and DW2450WS Service Manual   Base Component Removal and Installation service.subzero.com 800.222.7820 AIR DRIER MANIFOLD INSTALLATION AIR DRIER FAN REMOVAL After installing the air drier manifold, install: WARNING Disconnect the product from the power source Air drier duct before starting this procedure.
  • Page 61 DW2450 and DW2450WS Service Manual   Base Component Removal and Installation service.subzero.com 800.222.7820 AIR DRIER FAN INSTALLATION REAR THERMAL CUTOUT REMOVAL After installing the air drier fan, install: WARNING Disconnect the product from the power source Air drier manifold before starting this procedure.
  • Page 62 DW2450 and DW2450WS Service Manual   Base Component Removal and Installation service.subzero.com 800.222.7820 REAR THERMAL CUTOUT INSTALLATION HEATER ELEMENT REMOVAL After installing the rear thermal cutout, install: WARNING Disconnect the product from the power source Main control module before starting this procedure.
  • Page 63 DW2450 and DW2450WS Service Manual   Base Component Removal and Installation service.subzero.com 800.222.7820 IMPORTANT NOTE: It is critical to identify the red/blue wire connected to the front TCO. It should stay connected to the front TCO throughout the procedure. Disconnect the blue wire from the heater element by pushing in on the locking tabs and pulling straight down.
  • Page 64 DW2450 and DW2450WS Service Manual   Base Component Removal and Installation service.subzero.com 800.222.7820 HEATER ELEMENT INSTALLATION After installing the heater element, install: Upper front cover Lower front cover Kickplate Door panel Sump filter screen and fine filter Lower spray arm...
  • Page 65 DW2450 and DW2450WS Service Manual   Base Component Removal and Installation service.subzero.com 800.222.7820 The resistance should be between 16 Ω +10% / -5% Connect the blue wire and red/orange wire to the @ 70°F - 80°F. If the resistance is outside this range, replacement heater element.
  • Page 66 DW2450 and DW2450WS Service Manual   Base Component Removal and Installation service.subzero.com 800.222.7820 PRESSURE SENSOR REMOVAL PRESSURE SENSOR INSTALLATION CAUTION WARNING When servicing, use caution and monitor the unit Disconnect the product from the power source for leaks before installing the unit into the product before starting this procedure.
  • Page 67 DW2450 and DW2450WS Service Manual   Base Component Removal and Installation service.subzero.com 800.222.7820 Inside the tub, remove the water softener cap and WATER SOFTENER REMOVAL nut. TIP: When removing the nut, use plier handles or WARNING a spanner wrench to avoid scratching the tub.
  • Page 68 DW2450 and DW2450WS Service Manual   Base Component Removal and Installation service.subzero.com 800.222.7820 WATER SOFTENER INSTALLATION SUMP CHANNEL PLATE REMOVAL CAUTION WARNING When servicing, use caution and monitor the unit Disconnect the product from the power source for leaks before installing the unit into the product before starting this procedure.
  • Page 69 DW2450 and DW2450WS Service Manual   Base Component Removal and Installation service.subzero.com 800.222.7820 SUMP CHANNEL PLATE INSTALLATION CAUTION When servicing, use caution and monitor the unit for leaks before installing the unit into the product opening. After installing the sump channel plate, install:...
  • Page 70 DW2450 and DW2450WS Service Manual   Base Component Removal and Installation service.subzero.com 800.222.7820 Use a T-20 Torx bit to install the temperature and DIVERTER VALVE REMOVAL turbidity sensor mounting bracket. WARNING Turn off the power and water to the product before starting this procedure.
  • Page 71 DW2450 and DW2450WS Service Manual   Base Component Removal and Installation service.subzero.com 800.222.7820 DIVERTER VALVE INSTALLATION REMOVE THE DIVERTER VALVE CAUTION Use a T-20 Torx bit to remove the screws, inside the When servicing, use caution and monitor the unit sump, that hold the diverter valve to the sump.
  • Page 72 DW2450 and DW2450WS Service Manual   Base Component Removal and Installation service.subzero.com 800.222.7820 PROXIMITY SENSOR REMOVAL WARNING Turn off the power and water to the product before starting this procedure. To remove the proximity sensor, first uninstall the unit. Then, remove:...
  • Page 73 DW2450 and DW2450WS Service Manual   Base Component Removal and Installation service.subzero.com 800.222.7820 PROXIMITY SENSOR INSTALLATION LEVELER ASSEMBLY REMOVAL CAUTION WARNING When servicing, use caution and monitor the unit Turn off the power and water to the product for leaks before installing the unit into the product before starting this procedure.
  • Page 74 DW2450 and DW2450WS Service Manual   Base Component Removal and Installation service.subzero.com 800.222.7820 LEVELER ASSEMBLY INSTALLATION After installing the leveler assembly, install: Feed tube Rear access cover Rear thermal cutout Main control module Kickplate Upper spray arm Upper rack Rear insulation...
  • Page 75 DW2450 and DW2450WS Service Manual   Water Flow Diagrams service.subzero.com 800.222.7820   DW2450 (NON-SOFTENER) WATER FLOW DIAGRAM 828019 REV B 08/2023...
  • Page 76 DW2450 and DW2450WS Service Manual   Water Flow Diagrams service.subzero.com 800.222.7820 DW2450WS (WITH SOFTENER) WATER FLOW DIAGRAM 828019 REV B 08/2023...
  • Page 77 DW2450 and DW2450WS Service Manual   Error Codes and Troubleshooting service.subzero.com 800.222.7820   SERVICE MODE SERVICE MODE FUNCTIONS Service mode allows a technician to review various user Service mode allows two main functions: settings/offsets, manually activate and deactivate components, and monitor the unit's performance including •...
  • Page 78 DW2450 and DW2450WS Service Manual   Error Codes and Troubleshooting service.subzero.com 800.222.7820 FAULT-LEVEL ERROR CODES CLEAR ALL ERROR CODES Fault-level errors involve safety concerns, or indicate that From the UIM, exit Service mode (touch and hold the the dishwasher is inoperable. Only repairing the actual Cancel key).
  • Page 79 Error Codes and Troubleshooting service.subzero.com 800.222.7820 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.
  • Page 80 DW2450 and DW2450WS Service Manual   Error Codes and Troubleshooting service.subzero.com 800.222.7820 ERROR ERROR ERROR DESCRIPTION DIAGNOSING/TROUBLESHOOTING CODE LEVEL 050127 Warning MCM potentially damaged after Replace the MCM assembly. MOT1 current exceeded 2.54 A 050135 Fault MOT1 overloaded from Confirm the wash pump wire harness connections are tight and continuity of the dishwasher environment and circuit, including across connector PJ26.
  • Page 81 DW2450 and DW2450WS Service Manual   Error Codes and Troubleshooting service.subzero.com 800.222.7820 ERROR ERROR ERROR DESCRIPTION DIAGNOSING/TROUBLESHOOTING CODE LEVEL 050186 Fault Water flow problem Verify the water supply is on. Verify there are no kinks in the water supply line.
  • Page 82 DW2450 and DW2450WS Service Manual   Error Codes and Troubleshooting service.subzero.com 800.222.7820 ERROR ERROR ERROR DESCRIPTION DIAGNOSING/TROUBLESHOOTING CODE LEVEL Replace the MCM assembly. 200193 Fault HTR1 did not turn off after 234 Disconnect the power cord. minutes Replace the MCM assembly.
  • Page 83 DW2450 and DW2450WS Service Manual   Error Codes and Troubleshooting service.subzero.com 800.222.7820 ERROR ERROR ERROR DESCRIPTION DIAGNOSING/TROUBLESHOOTING CODE LEVEL TIP: Turbidity should change throughout the wash cycle as soil enters the sump. Replace the temperature and turbidity sensor. 560186 Fault FE1 detected insufficient water Check the water supply valve to the unit.
  • Page 84 DW2450 and DW2450WS Service Manual Error Codes and Troubleshooting service.subzero.com 800.222.7820 ERROR ERROR ERROR DESCRIPTION DIAGNOSING/TROUBLESHOOTING CODE LEVEL Verify X201 is connected to the UIM and its contacts are clean and intact. 580147 Fault MCM did not receive valid Confirm sump pressure sensor wire harness connections are tight and continuity signal from PE1 for 60 s of the circuit, including across pins 2 and 1 and pins 2 and 3 of connector PJ11.
  • Page 85 DW2450 and DW2450WS Service Manual   Error Codes and Troubleshooting service.subzero.com 800.222.7820 ERROR ERROR ERROR DESCRIPTION DIAGNOSING/TROUBLESHOOTING CODE LEVEL Clean both the sump filter screen and fine filter. NOTE: Use extreme caution so debris does not enter the hydraulics. If that happens, clean and flush the hydraulics.
  • Page 86 DW2450 and DW2450WS Service Manual   Error Codes and Troubleshooting service.subzero.com 800.222.7820 ERROR ERROR ERROR DESCRIPTION DIAGNOSING/TROUBLESHOOTING CODE LEVEL Check the drain routing from the unit. Verify there are no kinks in the drain hose and the drain line high loop remains attached to the rear of the dishwasher.
  • Page 87 DW2450 and DW2450WS Service Manual   Error Codes and Troubleshooting service.subzero.com 800.222.7820 ERROR ERROR ERROR DESCRIPTION DIAGNOSING/TROUBLESHOOTING CODE LEVEL Once power has been restored to the unit, verify the UIM says, "Wash cycle interrupted. START to resume. CANCEL to exit."...
  • Page 88 DW2450 and DW2450WS Service Manual   Error Codes and Troubleshooting service.subzero.com 800.222.7820 GENERAL TROUBLESHOOTING GUIDE PROBLEM POSSIBLE CAUSES SOLUTION/ACTION Dishwasher has no power. • Power supply issue Verify the power cord is properly plugged into a power supply that meets specifications.
  • Page 89 DW2450 and DW2450WS Service Manual Error Codes and Troubleshooting service.subzero.com 800.222.7820 PROBLEM POSSIBLE CAUSES SOLUTION/ACTION Water pools at bottom of Some water in the unit's drain area is normal. If the water level is above the filter • Clogged filter dishwasher.
  • Page 90 DW2450 and DW2450WS Service Manual Error Codes and Troubleshooting service.subzero.com 800.222.7820 PROBLEM POSSIBLE CAUSES SOLUTION/ACTION Dishes are not clean after • Spray arms not Make sure dishes are clean of large, caked-on food particles before placing wash cycle. rotating or clogged them in the dishwasher.
  • Page 91 DW2450 and DW2450WS Service Manual   Error Codes and Troubleshooting service.subzero.com 800.222.7820 PROBLEM POSSIBLE CAUSES SOLUTION/ACTION Confirm that the dispenser door is not blocked. Make sure that pot handles etc. are not extended outside the lower basket edge. Verify the china guard (the small tine running along the bottom of the rack from left to right) is not bent.
  • Page 92 DW2450 and DW2450WS Service Manual   Error Codes and Troubleshooting service.subzero.com 800.222.7820 PROBLEM POSSIBLE CAUSES SOLUTION/ACTION Remove the two wires attached to the switch, and make a connection between the two wires. • If the drain pump stops, change the pressure switch.
  • Page 93 DW2450 and DW2450WS Service Manual   Error Codes and Troubleshooting service.subzero.com 800.222.7820 PROBLEM POSSIBLE CAUSES SOLUTION/ACTION Dishwasher makes noise Run the Normal cycle. If the noise is present during the drying phase: • Drier fan is hitting a during drying.
  • Page 94 DW2450 and DW2450WS Service Manual   Error Codes and Troubleshooting service.subzero.com 800.222.7820 PROBLEM POSSIBLE CAUSES SOLUTION/ACTION Listen for the change in position of the diverter valve when the wash pump initially starts (the diverter valve rotates during this time). If there are no leaks and the diverter valve is operating after the 15-minute cycle completes, proceed.
  • Page 95 DW2450 and DW2450WS Service Manual   Technical Data service.subzero.com 800.222.7820   COVE DW2450 AND DW2450WS TECHNICAL SPECIFICATIONS Voltage 120 VAC (-15%, +10%) Frequency 60 Hz (-15%, +10%) Current 11 A @ 60 Hz Circuit Breaker (Non-Arc Fault) 15 A minimum, 20 A maximum.
  • Page 96 DW2450 and DW2450WS Service Manual   Technical Data service.subzero.com 800.222.7820 Drain pump (827628) Resistance when ohming out at 68°F: 29.7 Ω ± 1.5 Ω. Drier Fan (827643) Resistance (measured "cold"): 52.5 Ω Water softener reed switch (contained in the water softener, part 12 VDC, 1.5 mA...
  • Page 97 DW2450 and DW2450WS Service Manual Technical Data service.subzero.com 800.222.7820 WASH CYCLES WATER USAGE DETERGENT† RINSE AID OPTIONS CYCLE CYCLE TIME* DRY TIME DRAINS/FILLS 2:07 to 3:55 4 to 8 (according 4.0 to 8.4 gal 2 tbsp Delay Start, High Temp...
  • Page 98 DW2450 and DW2450WS Service Manual Wiring Diagrams service.subzero.com 800.222.7820 Wiring Diagrams DW2450 AND DW2450WS WIRING DIAGRAM (PRE-TCO AND HEATER REWORK) 828019 REV B 08/2023...
  • Page 99 DW2450 and DW2450WS Service Manual Wiring Diagrams service.subzero.com 800.222.7820 DW2450 AND DW2450WS WIRING DIAGRAM (POST-TCO AND HEATER REWORK) 828019 REV B 08/2023...

This manual is also suitable for:

Dw2450ws