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Dacor Dishwasher Service Manual

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Dishwasher Service Manual
Troubleshooting and Repair
69

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Summary of Contents for Dacor Dishwasher

  • Page 1 Dishwasher Service Manual Troubleshooting and Repair...
  • Page 2 Dishwasher Service Manual Lower Component Access 1. Toe Kick Panel • Remove outer, toe kick (on ED models), (#1a) by pulling on both left and right sides simultaneously (right side pictured). The assembly is secured by stud and catch fasteners.

  • Page 3: Heater Removal

    Frontal access allows the repair without pulling the dishwasher from the cabinet. Troubleshooting and Repair...
  • Page 4 Dishwasher Service Manual Troubleshooting and Repair 3. Circulation Pump Removal • The circulation pump can be removed two ways: • From the front as a part of the complete circ-sump assembly. • From the rear after the DW is pulled from the cabinet, and the back panel removed.

  • Page 5: Removing Back Panel

    Dishwasher Service Manual Troubleshooting and Repair 4. Removing Back Panel • Pull DW from Cabinet. • Remove the rear access panel to allow servicing of all rear mounted components. • Remove the 11 screws holding panel in place and remove the panel.
  • Page 6 Dishwasher Service Manual Troubleshooting and Repair 5. Circ-Sump Assembly Removal All of the components can be removed as an assembly for ease of service accessibility. • Release the sump from inside the DW by removing the sump locking nut. • Disconnect the drain hose from the back of the drain pump.
  • Page 7 The WPS sensor is mounted to the front of the sump with two small phillips head screws. • Remove the two screws and the wire plug from the sensor and remove from dishwasher. • The pressure switch can be removed from its mount by removing the two screws,...
  • Page 8 Dishwasher Service Manual Troubleshooting and Repair 7. Float Assembly Removal If the Styrofoam float becomes damaged and needs replacement: • Pull the unit from the cutout to access the back and remove the back panel. • On the back of the float bracket you will find a movable tab, bend it up and slide the float out the back.

  • Page 9: Troubleshooting And Repair

    Dishwasher Service Manual Troubleshooting and Repair 8. Drain Pump Removal • Disconnect hoses and wiring from pump. • Pull pump and bracket away from the sump and to the right. Note: Be prepared to absorb escaping water.
  • Page 10 Dishwasher Service Manual Troubleshooting and Repair 9. Floor Guard Switch • To remove the floor guard switch, remove the two Phillips screws from the body of the switch, remove the wires and remove the switch. • Use care when removing and reinstalling the floor guard switch. It is important that the switch be oriented straight up and down.

  • Page 11: Sump Removal

    Dishwasher Service Manual Troubleshooting and Repair 10. Sump Removal To remove the sump: • Remove the upper sump collar by turning it counterclockwise until it releases from the assembly. Loosen ring by tapping with a hammer and a flat blade screwdriver.

  • Page 12: Water Valve Removal

    Troubleshooting and Repair 11. Water Valve Removal To remove the water valve: • Turn water supply OFF to dishwasher. • Access to the lower service area by removing the lower Toe Kick Assembly (See instructions page 49). • Remove both supply and operating water hoses.

  • Page 13: Door Components

    Dishwasher Service Manual Troubleshooting and Repair Door Components 12. Separating the Door To separate the inner and outer door assemblies: • Remove the # 15 torx head screws around the perimeter of the inner door panel. • Remove the 4 screws mounted horizontally into the raised portion of the inner door liner.
  • Page 14 Dishwasher Service Manual Troubleshooting and Repair 13. Membrane To change the membrane, first separate the inner and outer door assemblies. • Remove the #15 torx head screws around the perimeter of the inner door panel. • Remove the screws mounted horizontally into the hinge arms.

  • Page 15: Door Switch Removal

    Dishwasher Service Manual Troubleshooting and Repair 14. Door Switch Removal To remove the door switch: • Separate the inner and outer door. • Remove the two top screws, which hold the switch to the door assembly. • Remove the assembly from the door and repair or replace as necessary.

  • Page 16: Control Board Removal

    Dishwasher Service Manual Troubleshooting and Repair 15. Control Board Removal The control panel is accessed by separating the inner and outer door assemblies. • Remove the two screws holding the control board access panel to the top rail of the outer door.
  • Page 17 Dishwasher Service Manual Troubleshooting and Repair Inner Tank Components 16. Filters • The large outer filter is held in place by the smaller inner filter. • To remove all filters, unscrew the inner filter by turning assembly counterclockwise. • When the inner filter is removed it releases the outer screen, and separates the two inner...

  • Page 18: Lower Spray Arm

    Dishwasher Service Manual Troubleshooting and Repair 17. Lower Spray Arm To remove the lower spray arm: • Remove the securing nut and washer from the top center portion of the arm assembly. • Carefully lift straight up and pull the arm out of the unit.

  • Page 19: Upper Rack Removal

    Dishwasher Service Manual Troubleshooting and Repair 19. Upper Rack Removal To remove the upper rack: • Pull the rack all the way out of the unit. Lifting on both sides at the same time, until the rack snaps into a locked position.
  • Page 20 Dishwasher Service Manual Troubleshooting and Repair 21. Detergent Cup Removal To remove the detergent cup: • Gain access to the inside of the door by separating the inner and outer door assemblies. • Remove the six phillips head screws holding the inner portion of the detergent cup assembly to the outer portion.
  • Page 21 Dishwasher Service Manual Troubleshooting and Repair...
  • Page 22 Close the dishwasher door. Be sure to close the detergent dispenser prior to initiating the FTM to check for proper operation. All LEDs on the dishwasher will turn ON for about 15 seconds then turn OFF. The factory test will begin. Use the timing chart below for expected operation timing of the component in question.
  • Page 23 The dishwasher display and will be visible to munication cable. loads will not function. the user. Dishwasher will be disabled. No response signal Wash cycle will go into a Check WPS connection. Re- from the WPS default timetable and soil=3;...

  • Page 24: Circulation Pump

    (120VAC) through terminal P7 pin 4. This circuit operates a solenoid that creates the dispensing ac- tion of both devices. In order for the mechanism to reset the dishwasher door must be fully opened between washes. This allows a linkage bar to drop into position and resets the mechanism.
  • Page 25 In this case, the door may close and physically latch but the dishwasher will not begin washing. The digital timer will not count- down but the green LED will blink as if running.
  • Page 26 ID models.) This option is provided, since in many installations, the membrane keypad will not be visible and the operating status of the dishwasher will be unknown to the user. A blinking green light indicates the unit is running normally. Solid green or blue indicates that the unit has successfully completed the desired cycle and can be unloaded.

  • Page 27: Inlet Valve

    The red LED will be illuminated if a “Drain” or “Water in Base Pan” failure is detected. See page 69 for description of failure codes. Floor Guard F9 The floor guard assembly is welded to the base and consists of three components: a microswitch, a styrofoam float, and a metal housing spot welded to the base.
  • Page 28 Power Board The power board, located in the base area of the dishwasher, takes commands sent from the control board and regulates power to the various components of the dishwasher by turning on and off corresponding relays according to the program selected by the user. It receives information from various sensors and converts the information into data the control board can understand before transfer to the control board.
  • Page 29 Pressure Switch The pressure switch is mounted to front of the sump, located in the lower base area. A small hose connects the pressure switch to the sump, allowing the switch to sense water levels inside the sump assembly. This NO switch will close and complete the circuit when the water level in the sump reaches 2.5”...

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