Whirlpool GU1200XT, GU1500XT User Manual

Download

Page 1

CONSUMER SERVICES TECHNICAL

EDUCATION GROUP PRESENTS

POINT VOYAGER DISHWASHER

KD-12

MODEL NUMBERS:

GU1200XT GU1500XT

JOB AID

Part No. 8178022

Page 2

INTRODUCTION

This Job Aid, POINT VOYAGER DISHWASHER, Part No. 8178022 provides specific information on the operation, diagnosis and repair of the Whirlpool Point Voyager series Undercounter Dishwasher.

POINT VOYAGER DISHWASHER has been compiled to provide the most recent information on design, features, operation, troubleshooting, and repair procedures.

GOALS AND OBJECTIVES

The goal of this Job Aid is to provide detailed information that will enable the service technician to properly diagnose malfunctions and repair the Point Voyager dishwasher.

The objectives of the Job Aid are:

The service technician will -

• Understand proper safety precautions.

• Successfully troubleshoot and diagnose malfunctions.

• Successfully perform necessary repairs.

• Successfully return the dishwasher to proper operational status.

WHIRLPOOL CORPORATION ASSUMES NO RESPONSIBILITY

FOR ANY REPAIRS MADE ON OUR PRODUCTS BY ANYONE

OTHER THAN AUTHORIZED SERVICE TECHNICIANS.

Page 3

TABLE OF CONTENTS

MODEL/SERIAL NUMBER DESIGNATORMODEL/SERIAL NUMBER DESIGNATOR

MODEL/SERIAL NUMBER DESIGNATOR

MODEL/SERIAL NUMBER DESIGNATORMODEL/SERIAL NUMBER DESIGNATOR

Section One

INSTALLATION CONSIDERATIONSINSTALLATION CONSIDERATIONS

INSTALLATION CONSIDERATIONS

INSTALLATION CONSIDERATIONSINSTALLATION CONSIDERATIONS

GENERAL CONSIDERATIONS...............................................................1

SPECIFICA-SPECIFICA-

SPECIFICA-

SPECIFICA-SPECIFICA-

TIONS....................................................................................TIONS....................................................................................

TIONS....................................................................................

TIONS....................................................................................TIONS....................................................................................

Section Two

THEORY OF OPERATIONTHEORY OF OPERATION

THEORY OF OPERATION

THEORY OF OPERATIONTHEORY OF OPERATION

CONTROL PANEL ...................................................................................3

Model: GU1200XTK

Cycle Selection Chart .................................................................. 3

Option Selection ..........................................................................5

Cycle Status Indicators ...............................................................6

CONTROL PANEL ...................................................................................7

Model: GU1500XTK

Cycle Selection Chart .................................................................. 7

FUNCTION DESCRIPTION......................................................................9

............................................................................

......................................

............................................................................

....................................................

..........................

....................................................

............................................................

..............................

............................................................

iviv

Section Three

COMPONENT ACCESSCOMPONENT ACCESS

COMPONENT ACCESS

COMPONENT ACCESSCOMPONENT ACCESS

COMPONENT LOCATION.....................................................................13

ACCESSING COMPONENTS IN THE DOOR ....................................... 14

ACCESSING COMPONENTS INSIDE THE TUB ..................................17

ACCESSING COMPONENTS OF THE PUMP ASSEMBLY .................20

SERVICING THE DOOR HINGE....................................................................23

Section Four

TROUBLESHOOTING AND DIAGNOSISTROUBLESHOOTING AND DIAGNOSIS

TROUBLESHOOTING AND DIAGNOSIS

TROUBLESHOOTING AND DIAGNOSISTROUBLESHOOTING AND DIAGNOSIS

TROUBLESHOOTING CHART.............................................................. 25

COMMON CYCLE TIME CHART...........................................................26

HOW TO USE COMMON CYCLE TME ................................................. 28

COMMON CYCLE TIME CHART NOTES ............................................. 31

DIAGNOSTIC CYCLE TIME CHART.....................................................35

RAPID ADVANCE FEATURE & DIAGNOSTIC CYCLES...................... 36

Section Five

TECH TIPSTECH TIPS

TECH TIPS

TECH TIPSTECH TIPS

WIRING DIAGRAM ................................................................................ 37

MODEL SPECIFIC SERVICE PARTS TABLE .......................................38

USER INTERFACE SWITCH MATRIX...................................................38

STRIP CIRCUITS ................................................................................... 39

ELECTRONIC CONTROL CONNECTOR PINS ....................................40

..............................................................................................

...............................................

..............................................................................................

................................................................................

........................................

................................................................................

......................................................

...........................

......................................................

1313

2525

3737

III

Page 4

MODEL/SERIAL NUMBER PLATE

SERIAL NUMBER DESIGNATOR

SERIAL NUMBER MANUFACTURING SITE

F = Findlay , OH

YEAR OF MANUFACTURE

L = 2001 WEEK OF MANUFACTURE PRODUCT SEQUENCE NUMBER

F L 36 50001

MODEL NUMBER DESIGNATOR

MODEL NUMBER

Product Group G = Gold Series Dishwasher

Product Identification U = Undercounter

Series Code 800 = Baseline and Contract Models 900 = Midline and Retail Derivatives 1000 = Voyager Platform

G 1500

Model/Serial

Number Plate

(Left side of

frame behind

door)

XT K

Feature Code PW = Premium Wash System SW = Standard Wash System XT = Extra Tall Tub

Year of Introduction K = 2001

Color Code B = Black Monochromatic Q = White Monochromatic T = Bisquit Monochromatic w/frameless panel

S = Black Console w/Stainless Steel panel ENGINEERING CHANGE

0 = Basic Release; 1 = First Revision; 2 = Second Revision

SAFETY

! WARNING

ELECTRICAL SHOCK HAZARD

Disconnect power before servicing the dishwasher. Replace all panels before operating the dishwasher. Failure to do so can result in death or electrical shock.

Page 5

SECTION ONE

INSTALLATION CONSIDERATIONS

GENERAL CONSIDERATIONS

For complete installation procedures see the “Installation Instructions” in the

literature packet provided with the dishwasher .

A video presentation, Key Features and Installation Considerations, part number

4317280V, is available. This video covers the entire installation process.

Each location will present a different set of challenges that can be anticipated and solved before installation begins.

• Check the planned location of the dishwasher.

• Easy access to hot water, drain line and electricity.

• Convenient access for loading. The dishwasher door should open and close freely .

• The opening under the counter should be square and the cabinet fronts should be perpendicular to the floor.

• Make sure the cabinet opening is free of intrusions such as braces or utility lines.

• Do not install the dishwasher on carpeted floors.

• An outside wall behind the dishwasher should be insulated to prevent the water line, inlet valve and drain line from rupturing.

The application of a horizontal pump and filter technology allows for the tub to be designed three inches deeper than current models. This deeper tub and longer door design will impact the installation process because there is less working space available underneath the unit and correct routing and placement of the drain hose, water supply and electrical wiring is critical.

The tub must be level. Reduced water consumption of this dishwasher requires that it be installed level and plumb for proper water recirculation back into the sump area during operation.

Do not remove the drain hose from the left side of the tub. This loop in the drain hose provides proper back pressure for the soil sensor. If the loop is removed, the dishwasher will not initiate Automatic Purge Filtration.

Drain Hose

Loop

Main Wash Motor

View of Sump Assembly from Underneath

Showing Horizontal Wash Pump Motor

and Drain Pump Motor

Drain Pump

Motor

Page 6

SPECIFICATIONS

ELECTRICAL SUPPLY: (Under Load) 60Hz, 120V AC SUPPLY WATER FLOW RATE: (To Fill 2 Quarts (1.9 L) in 27 secs.) - 120psi Max., 20psi Min. SUPPLY WATER TEMPERATURE: 120° F to 160° F (49° C to 71° C) WA TER CHARGE: 1.8 Gal. (6.8 L) / First Fill

1.7 Gal. (6.5 L) / All Other Fills

LOWER SPRAY ARM ROTATION: 25 TO 40 RPM UPPER SPRAY ARM ROTATION: 25 TO 35 RPM

APF DRAIN: .1 Gal. (.38 L) HEATING ELEMENT HEATING RATE: 1°+ F Rise per Minute

Page 7

MODEL: GU1200XTK

SECTION TWO

THEORY OF OPERATION

CONTROL PANEL

248

CYCLES

CYCLE SELECTION CHART

Select the wash cycle and options desired. Upon selecting the cycle key , the cycle will begin immediately . Cycles may be changed at any time, during the first fill. Options can be selected or changed at any time.

NOTE: The last options used will be recalled from memory automatically upon selecting a cycle, (if the option is valid with the cycle selected).

A “ ” shows what steps are in each cycle.

•

T emperatures indicate where extra heat is added. Water usage is shown in U.S. gallons/liters. Cycle time includes dry time. An asterisk (*) by

the cycle time indicates the cycle time might be longer depending on the temperature of the water entering the dishwasher. The cooler the water, the longer the cycle time. If the water is already hot enough, the cycle time will be as shown.

High

Low 130 F

High

Low

Rinse

(54 C)

Purge

Pots & Pans

High

Low

Rinse

Page 8

NOTE: The Soil Sensor monitors water pressure at the output of the drain pump. Cycle time and/or water usage can vary from the numbers above as the sensor adjusts the cycle for the best wash performance. Water pressure varies depending on the soil concentration in the accumulator.

One or all of the following may be used to achieve the desired washing performance of a selected wash cycle.

Canceling a Cycle

Anytime during a cycle, press

The dishwasher starts a two minute drain (if needed.) Let the dishwasher drain completely. The light turns off after two minutes.

To Stop the Drain

Press CANCEL/DRAIN a second time to stop the drain immediately. Always drain the dishwasher before starting a new cycle.

To Clear the Indicators

Press CANCEL/DRAIN before starting the dishwasher to clear all options and cycles.

Changing a Cycle or Setting

Automatic Purge Filtration

The Automatic Purge Filtration (APF) feature may also be invoked if the soil sensor detects excessive soils. This can occur during selected wash or rinse cycles. APF mode provides one or more purges of excess soils trapped in the soil accumulator at specified intervals in the cycle.

The APF operates for a total of 10 seconds while the wash motor is operating in a wash or rinse mode. The accumulator screen will be cleaned from jets on the underside of the lower spray arm.

During the first five seconds, the drain motor turns on and the fill valve is activated. This purges the soiled water from the accumulator and begins to add fresh water. For the remaining five seconds, the drain pump is turned off, but the fill valve remains activated to bring wash water up to proper level.

During the first minute of a cycle:

1. Press a new cycle and/or options.

2. Check the detergent dispensers. They must be filled properly for the new cycle.

After the first minute of a cycle:

1. Press:

CANCEL/DRAIN glows. The dishwasher starts a two minute drain (if needed.) Let the dishwasher drain completely.

2. Check the detergent dispensers. They must be filled properly for the new cycle.

3. Close the door.

4. Press a new cycle and/or options.

5. Press Start.

Page 9

ADDING ITEMS DURING A CYCLE

Items can be added any time before the main wash starts. Open the door and check the detergent dispenser. If the cover is still closed, add items.

To Add Items:

1. Lift up the door latch to stop the cycle. Wait for the spraying action to stop before opening the door.

2. Open the door. If the detergent dispenser cover is still closed, add the item(s).

3. Close the door firmly until it latches. The dishwasher resumes the cycle after a five (5) second pause.

OPTION SELECTION

Soak & Scour

Select this option to run a 4 hour pre-soak before the selected cycle. The pre-soak consists of a standard fill, an initial 8 minute wash, then 13 wash pulses, each 90 seconds long with a 16 minute pause between pulses. This keeps the dishes wet and soaking. At the conclusion of the pre-soak, the dishwasher drains and the selected cycle begins.

NOTE: The Soak & Scour option is allowed with the Pots & Pans cycle only.

Hi-Temp Scour

Select this option to increase the target water temperature during the wash portion of the cycle. Hi-Temp Scour raises this target water temperature to 145° F (63° C) in the Main Wash for all cycles. In the Pots & Pans cycle, Hi-Temp Scour also raises the target water temperature to 135° F (57° C) in the pre-wash. Heating the water helps improve washing results. Hi-Temp Scour is useful when loads contain baked-on food.

This option adds heat, water and wash time by adding at least one additional rinse mode to the cycle.

NOTE: Hi-Temp Scour is an option with Pots & Pans and Normal.

Sani-Rinse

Select this option to raise the water temperature in the final rinse to approximately 160° F (70° C) for 10 minutes. Sani-Rinse adds heat and time to the cycle. In the Normal cycle, this high temperature rinse sanitizes the dishes and glassware in accordance with the NSF International requirements (#95/480/05/2480).

NOTE: Sani-Rinse is an option with the Pots & Pans and Normal cycles.

Air Dry

Select this energy-saving option to dry without heat. Air drying is useful when loads

contain plastic dinnerware that may be sensitive to high temperatures. The dishes take longer to dry and spotting can occur. For best drying, use a liquid rinse aid.

Some items, such as plastics, may need towel drying.

NOTE: Rinse Only does not have a dry period. Air Dry is an option with all other cycles.

Page 10

Control lock

Use the Control Lock to prevent the dishwasher from accidentally being turned on. Use the ControlLock, also, to prevent accidental cycle or option changes during a cycle.

When the Lock LED is lit, all buttons are disabled.

NOTES:

• The dishwasher door can be opened while the controls are locked.

• The lock can be turned on while the dishwasher is running.

To Turn on the Control Lock:

Press and hold Air Dry for four (4) seconds. The LOCK LED will glow.

To Turn off the Lock:

Press and hold Air Dry for 4 seconds. The LED turns off.

Delay Hours

Select this option to run the dishwasher at a later time or during off-peak hours.

To Delay the Start:

1. Close the door.

2. Press Delay Hours 1 time for a 2-hour delay, 2 times or a 4-hour delay or 3 times for an 8hour delay .

3. Select a wash cycle and options.

The number glows above Delay Hours. The dishwasher starts the cycle in the selected number of hours.

NOTE: T o cancel the delay and begin cycle immediately , press Delay Hours until all delay hours LEDs are off.

248

Cycle Status Indicators

The progress of the dishwashing cycle can be followed with the Cycle Status Indicators.

Page 11

Sensing/Soaking

The dishwasher senses the soil level on the dishes. Soil level determines the length of some cycles, the amount of heat added to the wash and the number of rinses needed in the cycle for the load. It also senses the temperature of the water during thermal hold water heating periods. SENSING/SOAKING glows during the soil sensing and thermal hold portions of the cycle. Wash action continues while sensing occurs. SENSING/SOAKING also glows during “soaking” events and the 4-hour pre-soak cycle invoked by the Soak & Scour Option.

Sanitized

If the Sani Rinse option is selected, SANITIZED glows when the Sani Rinse cycle is finished. If the dishwasher did not properly sanitize the dishes, the light flashes at the end of the cycle. This can happen if the cycle is interrupted or the dishwasher failed to reach sani temperatures. The light goes off when any key is selected or the door is opened and reclosed.

Clean

CLEAN glows when a cycle is finished. The light turns off when the door is opened and reclosed or any key is pressed.

CONTROL PANEL

MODEL: GU1500XTK

CYCLES

OPTIONS

CYCLE SELECTION CHART

NOTE: The last options used will be recalled from memory automatically upon selecting a cycle, (if the option is valid with the cycle selected).

A “ ” shows what steps are in each cycle.

•

Temperatures indicate where extra heat is added. Water usage is shown in U.S. gallons/liters. Cycle time includes dry time. An asterisk (*) by the cycle time indicates the cycle time might be longer

depending on the temperature of the water entering the dishwasher. The cooler the water, the longer the cycle time. If the water is already hot enough, the cycle time will be as shown.

Page 12

High

Rinse

High

Low

High

Low

Purge

Rinse

High

Low 130 F

(54 C)

Page 13

FUNCTION DESCRIPTION

The washing action of the Point Voyager Dishwasher performs more work and maintains higher performance with reduced energy consumption. This is accomplished with the following: 1) A redesigned wash system using separate wash and drain pumps. 2) A soil sensor and thermistor which monitor washing conditions. 3) An electronic control board which adjusts cycle functions to optimize washing performance.

Wash/Rinse Function

1. The main wash water passes from the spray arm nozzles, over the dish load and into the sump assembly, where a number of operations occur.

2. Water and soils pass through the course protection grate at the top of the sump assembly (2a) and then passes through the foreign object protector (2b) into the main wash pump inlet chamber (2c).

3. The water then passes through the chopper assembly where food particles are reduced in size so they can pass through the water delivery system. (3)

4. Water is drawn through the impeller and into the pump chamber. (4)

5. Here, 20 percent of the water is diverted towards the soil accumulator. Food soils in this water stream are captured by the separation screen. (5)

6. Downstream restrictions limit the water flow into the accumulator to 10 percent.

(6a) The remaining water is allowed to

rejoin the main wash flow by passing through the separation screen. (6b)

7. This heavily soiled water is distributed throughout the accumulator. (7) Soils will remain trapped in the accumulator until a drain or Automatic Purge Filtration event takes place.

8. Since the water in the accumulator is under some minimal pressure, it rejoins the main wash water by flowing through the accumulator screen into the tub. (8)

9. For this to occur properly it is critical that the dishwasher be installed perfectly level.

10. Jets located on the underside of the lower spray arm continuously wash down the accumulator screen to allow more soils to concentrate. (10)

11. The remaining 80 percent of the wash water will flow from the impeller through the volute and up through the spray arms.

(11)

Page 14

Drain Function

1. During the Drain function, a separate drain pump motor is started while the main wash pump motor continues to operate for 1 minute. (1) This accomplishes three goals.

2. First, the jets on the underside of the lower spray arm continue to flush soils from the accumulator screen while the water is drained from the unit. (2)

3. Second, negative pressure in the main wash pump inlet chamber keeps the check valve closed, allowing the drain pump to remove soiled water from the accumulator. (3)

4. Third, the spray arms will rinse down the interior of the wash tub while the water is drained, leaving the inside free of soils. (4)

5. The main wash pump then stops creating positive pressure in the pump’s inlet chamber. This opens the check valve allowing the remaining water to be drained away. (5)

Page 15

Automatic Purge Filtration

1. The Automatic Purge Filtration feature may be invoked if the soil sensor detects excessive soils. This can occur during selected wash or rinse functions. APF mode provides one or more purges of excess soils trapped in the soil accumulator at specified intervals in a cycle.

2. The APF mode operates for a total of 10 seconds while the wash pump is operating in a wash or rinse mode. The accumulator screen will be cleaned from jets on the underside of the lower spray arm. (2)

3. During the first five seconds, the drain pump turns on and the fill valve is activated. This purges the soiled water from the accumulator and begins to add fresh water. (3)

APF Function

First Five Seconds

4. For the remaining five seconds, the drain pump is turned off, (4a) but the fill valve remains activated to bring wash water up to the proper level. (4b)

APF Function

Last Five Seconds

Theory Resources

The tech sheet, found behind the access panel provides a Common Cycle Time Chart. This chart will allow the service technician to identify and track each operation of the dishwasher by timed interval. See Section Four, Troubleshooting and Diagnosis for instruction on how to use this chart with the Diagnostic Routines built into the electronic controls of the dishwasher.

Page 16

-- NOTES --

Page 17

Inner Feed Tube

Middle Spray

Arm

SECTION THREE

COMPONENT ACCESS

COMPONENT LOCATION

Upper

Spray

Arm

Active

Vent

Control

Panel

Electronic

Control Board

(Interconnect

Board Underneath)

Door Latch Assembly

Dispenser Assembly

LowerSpray Arm

Water Inlet

Drain Tube

Accumulator

Wash Pump

Start Capacitor

Float

Sump and Motor

Assembly

Heating

Element

Check Valve

(in drain hose)

Soil Sensor

Pressure Switch

Drain Pump Motor

Thermistor

Wash Pump Motor

Page 18

! IMPORTANT

Electrostatic Discharge (ESD) Sensitive Electronics

ESD problems are present everywhere. ESD may damage or weaken the electronic control assembly. The new control assembly may appear to work well after repair is finished, but failure may occur at a later date due to ESD stress.

• Use an antistatic wrist strap. Connect wrist strap to green ground connection point or unpainted metal in the appliance. - OR - Touch your finger repeatedly to a green ground connection point or unpainted metal in the appliance.

• Before removing the part from its package, touch the antistatic bag to a green ground connection point or unpainted metal in the appliance.

• Avoid touching electronic parts or terminal contacts; handle electronic control assembly by edges only.

• When repacking failed electronic control assembly in antistatic bag, observe above instructions.

! WARNING

ELECTRICAL SHOCK HAZARD

Disconnect power before servicing the dishwasher. Replace all panels before operating the dishwasher. Failure to do so can result in death or electrical shock.

ACCESSING COMPONENTS IN THE DOOR

Removing the Console Panel

The control panel on the Voyager Dishwasher can be removed from the dishwasher door.

1. Remove the six (6) screws securing the control panel to the door frame. (Fig. 3-1)

2. The control panel will now drop down and be free of the door assembly. The wiring harness

will remain connected to the console components.

Fig. 3-1

Page 19

Removing the Electronic Control Board

The electronic control board is located inside the console at the top of the dishwasher door.

1. Disconnect the ribbon connector and the wiring harness connectors from the electronic control

board. (Fig. 3-2)

2. Use a flat bladed screwdriver to depress the holding tabs at the left end of the control board

assembly while pulling up. (Fig. 3-3, Inset)

Use a flat bladed

screwdriver to depress

the holding tabs

at the left end

of the control board

assembly while pulling

up as shown here.

Fig. 3-3

Fig. 3-2

Inset

Removing the Door Latch Assembly

Release the tabs securing the door latch assembly to the control panel and lift the assembly out. (Fig. 3-4, Inset)

Tab

Inset

Fig. 3-4

Page 20

Removing the Door Microswitches

The Door Switches are located on the right and left side of the door latch assembly.

1. Disconnect the wiring harness connectors from the microswitch terminals.

2. Pull back on the two (2) plastic retaining tabs securing the microswitches to the door latch

assembly and lift the microswitches out. (Fig. 3-5)

Inset

Lift Microswitch

Spread Tabs (Caution: These tabs can break.)

Removing the Active Vent

Fig. 3-5

Assembly

The Active Vent Assembly is located in the console area.

1. Remove the six (6) screws securing the control panel to the door frame.

2. Disconnect the wiring harness connectors from the wax motor terminals on the active vent assembly .

3. Loosen, but do not remove the four T-15 Torx screws securing the left side of the outer door panel to the door frame. This will provide additional room to easily re move the active vent assembly.

4. Using a flat bladed screwdriver in the slot provided at the bottom of the interior vent grille, turn the vent grille counterclockwise ¼ turn and remove the grille. (Fig. 3-6)

Use Flat Bladed

Screwdriver and Turn

Interior Vent Grille ¼ Turn

Counter-clockwise

Fig. 3-6

5. The active vent assembly will drop free of the dishwasher door.

Page 21

Removing the Dispenser Assembly

The Dispenser Assembly is located in the lower portion of the dishwasher door below the console area.

1. Remove the eight (8) screws securing the outer door panel to the dishwasher door frame. (Fig. 3-7) Remove the outer door panel from the door frame.

2. Remove the center top hex head screw and remove the dispenser shield and disconnect the wiring harness connectors from the detergent dispenser solenoid.

(Fig. 3-8)

3. Remove the remaining five (5) screws securing the dispenser assembly to the inner door liner.

(Fig. 3-8)

4. Bend the two locking tabs at the top and bottom of the dispenser assembly up away from the dispenser body.

5. The dispenser assembly can now be lifted from the inner door liner.

Dispenser

Tab

Shield

Fig. 3-7

SERVICING COMPONENTS INSIDE THE WASH TUB

Removing the Inner Feed Tube and Lower Spray Arm

The Inner Feed Tube is held in place by two (2) screws. (Fig. 3-9) One is located on the inner top of the dishwasher tub. The second is located on the back of the dishwasher tub.

1. Remove the two (2) dishracks from the dishwasher tub.

2. Remove the two (2) screws securing the Inner Feed Tube to the inside of the dish washer tub.

Remove This

Screw First

Tab

Fig. 3-8

Screws

Fig. 3-9

Page 22

3. Rotate the rear feed cap (Fig. 3-10a) ¼ turn clockwise (Fig. 3-10b)

Rear Feed Cap

Fig. 3-10a

Fig. 3-10b

4. The entire inner water tube assembly and the lower spray arm assembly can now be removed from the dishwasher tub.

Removing the Water Inlet

The water inlet is located on the left side of the dishwasher tub. (Fig. 3-11)

1. From the inside of the tub, use a small pair of Channel Locks™ and turn the inlet grille ¼ turn counterclockwise and remove the grille. (Fig. 3-12)

2. The water inlet can now be separated from the dishwasher tub.

Water Inlet

Water Inlet Grille

Water Inlet

Fig. 3-11

Servicing the Heating Element

The heating element (Fig. 3-13) should not be removed unless it has failed. All critical components of the dishwasher can be removed without removing the heating element.

If the heating element must be removed, it must be replaced with a new one.

When installing a new heating element, follow the Installation Instructions provided with the new item.

Fig. 3-12

Heating Element

Fig. 3-13

Page 23

Servicing the Overfill Assembly

Removing the Float

The float (Fig. 3-14) can be removed from inside the tub.

1. Tip the float slightly and gently toward the back of the tub and lift up to disengage it from the overfill assembly body .

Removing the Overfill Control Switch

The overfill control switch can be removed from the overfill assembly without removing the assembly from the tub.

1. Remove the toe and access panels from the bottom of the dishwasher.

2. Unsnap the cover over the overfill control switch.

3. Lift the overfill control switch from the assembly.

4. Disconnect the wiring harness connectors from the switch terminals.

Removing the Overfill Assembly

1. Remove the toe and access panels from the bottom of the dishwasher.

2. Remove the float.

3. Remove the standpipe nut.

4. Push the overfill assembly through the bottom of the tub.

5. Open the cover and lift the overfill control switch from the assembly.

Float

Standpipe

Nut

Overfill

Switch

Cover

Overfill

Control

Switch

Tip Float Slightly

Toward Back to

Disengage It from

the Overfill

Assembly Body

Overfill

Assembly

Fig. 3-14

6. Disconnect the wiring harness connectors from the switch terminals.

Page 24

Removing the Pump Assembly

The entire pump assembly can be removed from inside the dishwasher tub.

1. Remove the access and toe panels from underneath the dishwasher door by removing the two (2) screws securing it to the dishwasher frame. (Fig. 3-15)

2. Disconnect the wiring harness connectors from the drive motor and pump motor terminals, the soil sensor and the thermistor.

3. Disconnect the drain hose from the drain hose connector on the pump outlet.

4. Remove the pump motor. (See next

Toe Panel

page.)

Fig. 3-15

5. Remove the three (3) sump tabs that

Inset

secure the sump assembly to the dishwasher tub. (Fig. 3-16, Inset)

6. From inside the tub, lift the front of the sump up approximately ½ inch. Push the assembly back and then lift it out.

Access Panel

Sump Tab

NOTE: When reinstalling the sump assembly,

align the locator key with the corresponding slot in the tub opening.

SERVICING COMPONENTS IN THE SUMP ASSEMBLY

Removing the Wash Motor

1. Remove the bolt securing the wash motor and drip shield in place on the pump assembly. (Fig. 3-18)

2. Once the bolt and drip shield are removed, turn the wash motor until it stops (approximately ¼ turn).

3. Pull the motor straight back from the sump assembly . Some effort may be necessary to dislodge the motor. The volute will remain attached to the motor. (See Figure 3-29)

Sump Tab

Drip Shield

Sump

Tab

Fig. 3-16

Inset

NOTE: When reinstalling the wash motor and

volute, do not pinch the volute seal between the volute and sump. Use a small amount of rinse aid on the volute seal to help installation.

Fig. 3-17

Bolt Holds Drip

Shield in Place

Page 25

Removing the Pump Motor

1. With one hand, press back on the plastic tab that holds the pump motor from rotating. (Fig. 3-18)

2. With the other hand, rotate the pump motor counterclockwise approximately ¼ turn. The pump motor will now be free of the pump assembly.

Fig. 3-18

Accessing Components of the Sump Assembly

Components inside the sump can be accessed without removing the sump from the dishwasher tub.

1. Remove the four (4) screws securing the soil accumulator from the sump base. (Fig. 3-19)

2. The soil accumulator will now lift free of the sump base. (Fig. 3-20)

Accumulator

Fig. 3-19

3. Remove the screw securing the foreign objects protector to the sump base and remove the protector. (Fig. 3-21)

4. Remove the screw securing the inlet protector to the pump base and lift the inlet protector out. (Fig. 3-22)

5. Remove the chopper assembly from the impeller shaft and lift it from the sump base. (Fig. 3-23)

Chopper

Fig. 3-23

Fig. 3-21

Inlet

Protector

Fig. 3-22

Fig. 3-20

Foreign

Object

Protector

Page 26

6. The check valve, located between the wash motor and the drain can be removed with a pair of needle nose pliers. (Fig. 3-24)

NOTE: When replacing the check valve, simply drop it in place. The inlet protector will seat the flapper valve properly when it is reinstalled.

7. With the wash motor removed, the separation screen can be removed from the sump base.

(Fig. 3-25)

Separation Screen

Check

Valve

Fig. 3-24

Fig. 3-25

8. The thermistor can be removed from the sump

Thermistor

by turning it ¼ turn counterclockwise and pulling it out. (Fig. 26) The thermistor can be removed without removing the sump assembly from the tub.

Access to the thermistor can be gained by removing the access and toe panels while the unit is in its installed position.

Fig. 3-26

Removing the Soil Sensor

If so equipped, a soil sensing pressure switch is mounted on the pump outlet. Disconnect the two wiring harness connectors from the switch terminals. Disconnect the drain hose. (Fig. 3-27A) Remove the screw securing the sensor switch to the pump base. Lift it from the pump outlet. (Fig. 3-27B)

Soil Sensor

Pressure Switch

Fig. 3-27A

Fig. 3-27B

Page 27

Removing the Impeller from the Wash Motor

The impeller is attached to the wash motor and can be removed once the wash motor is removed from the pump base.

1. Place the end of a flat-bladed screwdriver into the back of the wash motor to hold the armature of the motor from turing while unscrewing the impeller clockwise. (Fig. 3-28) Take care not to scratch or nick the motor windings.

Do not touch sealed surfaces on the

impeller or the volute. Contamination or

damage will cause premature failure.

Fig. 3-28

To Remove the Volute

1. Align the arrow on the volute and the locator triangle on the wash motor frame as in Figure 3-29.

2. Lift the volute from the wash motor.

SERVICING THE DOOR HINGE

To service the door hinge the dishwasher must be removed from its installed position. Be sure to:

• Disconnect power from the unit.

• Disconnect the water supply line from the unit.

• Disconnect the drain line from the unit.

Once the side of the dishwasher is accessible:

1. Remove the outer door panel and console from the dishwasher door.

Volute

Fig. 3-29

INSET

Hinge Pin

Fig. 3-30

2. Remove the door spring from the tension adjustment at the bottom of the unit and then remove the spring link from the door hinge plate (Fig. 3-30).

3. Using a pair of pliers, slightly bend the tab on the door hinge plate to open the slot for the hinge pin. (Fig. 3-30, INSET- Arrow points at tab).

Page 28

4. Remove the three (3) screws securing the hinge plate to the front of the dishwasher inner door panel. (Fig. 3-31)

5. Open the door slightly . Hold onto the door assembly . With the counterbalance spring removed, the door will drop open easily .

6. Lift the door up to disengage it from the hinge pin (Fig. 3-30, INSET) and then carefully pull the hinge plate from the inner door panel.

SCREWS

Fig. 3-31

Page 29

SECTION FOUR

TROUBLESHOOTING AND DIAGNOSIS

TROUBLESHOOTING CHART

PROBLEM POSSIBLE CAUSES CORRECTION/TEST

Dishwasher does not run or stops during a cycle

Dishwasher will not fill

1. Door is not latching properly.

2. Child lock is "ON".

3. Wash Cycle not set properly.

4. Household fuse blown or circuit breaker tripped.

5. Dishwasher is not wired into a circuit with proper voltage.

1. Overflow protection float is stuck in "up" position.

2. Fill valve is inoperable.

3. Control board is inoperable.

1. Check to make sure handle is properly seated in door latch assembly. Check that the door switch is opening and closing properly.

2. Turn child lock "OFF". See Use and Care Guide.

3. Review setting Wash Cycles in the Use and Care Guide.

4. Have a qualified electrician check the circuit breaker or fuse.

5. Have customer call a qualified electrician.

1. Check that the overflow protection float is free to move "up" and "down" Check that the overfill switch in opening and closing properly.

2. Check for continuity between contacts on fill valve.

3. Check for 120VAC between P8 and P2-3.

Dishwasher will not drain

Dishwasher will not dry dishes

1. Air gap (if installed) is clogged.

2. Pump motor is inoperable

3. Control board is inoperable.

1. Heater element burned out.

2. Hi-Limit thermostat inoperable.

3. Active vent wax motor inoperable.

1. Follow air gap manufacturer's directions for cleaning.

2. Disconnect pump motor from wiring harness and check for continuity between GY &BU/ BK.

3. Check for 120VAC between P8 and P3..

1. • Check for continuity between the terminals of the heater element.

• Check for 120VAC between P8 and Neutral.

2. Check for continuity between terminals of the hi-limit thermostat.

3. • Check for continuity between terminals of the wax motor.

• Check for 120VAC between P8 and Neutral.

Page 30

COMMON CYCLE TIME CHART

INTERVAL 45 44 43 42 41 40 39 38 ANTI-BACTERIA / BAKED-ON COOKWARE NOTES 1A,14A,15,16

INTERVAL TIME (min:sec) THERMAL HOLD WITH HI TEMP SCRUB OPTION — ANY SOIL LEVEL NOTE 14A 99:00 w/o Th.Holds [135F / 57C]

NUMERIC DISPLAY CYCLE TIME (spinning “CLOCK” pattern in INTERVALS 45-42 for some models, see NOTE 5) [99] [98] [98] [98] 94 92 92 91 HIGH SOIL [Soil sensed in Interval 42] NOTE 1A 99:00 w/o Th.Holds [130F / 54C] NUMERIC DISPLAY CYCLE TIME (spinning “CLOCK” pattern in INTERVALS 45-42 for some models, see NOTE 50 [99] [98] [98] [98] 94 92 92 91 LOW SOIL (or Non-Sensor Model) [No soil sensed in Interval 42] NOTE 1A 91:25 w/o Th.Holds [130F / 54C] NUMERIC DISPLAY CYCLE TIME (spinning “CLOCK” pattern in INTERVALS 45-42 for some models, see NOTE 5) [99] [98] [98] [98] 86 84 84 83 POTS & PANS / HEAVY NOTES 1A,14A,15,16

INTERVAL TIME (min:sec) THERMAL HOLD WITH P.SCOUR / H.T.SCRUB OPTION — ANY SOIL LEVEL NOTE 14A 97:00w/o Th.Holds [135F / 57C]

NUMERIC DISPLAY CYCLE TIME (spinning “CLOCK” pattern in INTERVALS 45-42 for some models, see NOTE 5) [97] [96] [96] [96] 92 90 90 89 HIGH SOIL [Soil sensed in Interval 42] NOTE 1A 97:00w/o Th.Holds [130F / 54C] NUMERIC DISPLAY CYCLE TIME (spinning “CLOCK” pattern in INTERVALS 45-42 for some models, see NOTE 5) [97] [96] [96] [96] 92 90 90 89 LOW SOIL (or Non-Sensor Model) [No soil sensed in Interval 42] NOTE 1A 89:25 w/o Th.Holds [130F / 54C] NUMERIC DISPLAY CYCLE TIME (spinning “CLOCK” pattern in INTERVALS 45-42 for some models, see NOTE 5) [97] [96] [96] [96] 84 82 82 81 NORMAL NOTES 1A,9,14B,15,16

INTERVAL TIME (min:sec) HIGH SOIL WITH P.SCOUR / H.T.SCRUB OPTION [Soil sensed in Interval 42] NOTE 14B 95:00 w/o Th.Holds

NUMERIC DISPLAY CYCLE TIME (spinning “CLOCK” pattern in INTERVALS 45-42 for some models, see NOTE 5) [95] [94] [94] [94] 90 88 87 HIGH SOIL [Soil sensed in Interval 42] NOTE 1A 95:00 w/o Th.Holds NUMERIC DISPLAY CYCLE TIME (spinning “CLOCK” pattern in INTERVALS 45-42 for some models, see NOTE 5) [95] [94] [94] [94] 90 88 87 LOW SOIL (or Non-Sensor Model) H.T.SCRUB OPTION [No soil sensed in Interval 42] NOTE 14B 87:25 w/o Th.Holds NUMERIC DISPLAY CYCLE TIME (spinning “CLOCK” pattern in INTERVALS 45-42 for some models, see NOTE 5) [95] [94] [94] [94] 82 80 79 LOW SOIL (or Non-Sensor Model) [No soil sensed in Interval 42] NOTE 1A 87:25 w/o Th.Holds NUMERIC DISPLAY CYCLE TIME (spinning “CLOCK” pattern in INTERVALS 45-42 for some models, see NOTE 5) [95] [94] [94] [94] 82 80 79 LOW SOIL (or Non-Sensor Model) [No soil sensed in Interval 42] — E. STAR MODEL NOTE 1A 78:20 w/o Th.Holds NUMERIC DISPLAY CYCLE TIME (spinning “CLOCK” pattern in INTERVALS 45-42 for some models, see NOTE 5) [95] [94] [94] [94] 73 71 70 CHINA/LIGHT NOTES 1A,10,16

INTERVAL TIME (min:sec) HIGH SOIL [Soil sensed in Interval 42] NOTE 1A 78:25 w/o Th.Holds

NUMERIC DISPLAY CYCLE TIME (spinning “CLOCK” pattern in INTERVALS 45-42 for some models, see NOTE 5) [79] [77] [77] [77] 73 71 70 LOW SOIL (or Non-Sensor Model) [No soil sensed in Interval 42] NOTE 1A 70:20 w/o Th.Holds NUMERIC DISPLAY CYCLE TIME (spinning “CLOCK” pattern in INTERVALS 45-42 for some models, see NOTE 5) [79] [77] [77] [77] 65 63 62 QUICK CLEANUP / TIME SAVER NOTES 1B,11,1 6

INTERVAL TIME (min:sec) COOL FIRST FILL [Sensed inlet water <135F in Interval 45] NOTE 1B 47:35

NUMERIC DISPLAY CYCLE TIME (spinning “CLOCK” pattern in INTERVALS 45-42 for some models, see NOTE 5) [48] [46] [46] [46] 46 45 44 HOT FIRST FILL [Sensed inlet water >135F in Interval 45] NOTE 1B 43:55 NUMERIC DISPLAY CYCLE TIME (spinning “CLOCK” pattern in INTERVALS 45-42 for some models, see NOTE 5) [48] [46] [46] [46] 42 RINSE ONLY NOTE 1C

INTERVAL TIME (min:sec) ALL MODELS & CONDITIONS (No cycle changes based on sensor inputs) NOTE 1C 9:45

NUMERIC DISPLAY CYCLE TIME (spinning “CLOCK” pattern in INTERVALS 45-42 for some models, see NOTE 5) [10] [9] [9] [8] 4 2 1

RINSE ONLY” CYCLE PROGRESSION & STATUS INDICATORS [All other prog./status LED’s off]

SOAKING/SENSING NOTE 7 CIRC (PROG BAR R2) (This LED will be labeled as ‘WASHING’ on models that use it, but it is on during all Wash and Rinse Periods) RINSING “CYCLE PROGRESSION & STATUS INDICATORS PROG BAR W1 PROG BAR W2 WASHING (PROG BAR W3) PROG BAR R1 CIRC (PROG BAR R2) (This LED will be labeled as ‘WASHING’ on models that use it, but it is on during all Wash and Rinse Periods)

RINSING DRYING

SOAKING NOTE 7 SOAKING/SENSING NOTE 7 ADD-A-DISH WATER HEATING (THERMAL HOLD INDICATOR) NOTE 6 SANITIZED NOTE 8,15 CLEAN NOTE 8

OUTPUT LOADS WASH MOTOR (MAIN WINDING) DRAIN MOTOR NOTE 2 APF APF APF FILL NOTE 2 APF APF APF APF ENABLED INTERVALS -Max # of APF Purges allowed in Interval NOTE 2 max3 max2 max 2 DETERGENT / RINSE AID DISPENSER VENT HEATER NOTES 4,10,11,16

1:35

PERIOD 1

PRE-WASH

0:05

4:00

2:00

0:05

4:00

2:00

0:05

4:00

2:00

0:05

4:00

2:00

0:05

0:35

0:05

4:00

2:00

14 14 11 11

22 2

1:00

NOTES

1:00

Page 31

PERIOD 2

37 36 35 34 33 32 31 30 29 28

MAIN WASH

PURGE/RINSE

27 26 25 24 23 22

PERIOD 3

RINSE

21 20 19 18

PERIOD 4

17 16 15 14 13 12 11 10 9 8

FINAL RINSE

PERIOD 5

7654321

DRY

0:45

7:00

> > > > >

7:00

THERMAL HOLD

[145F / 63C] [145F / 63C] [145F / 63C]

THERMAL HOLD

[145F / 63C] [140F / 60C] [140F / 60C]

THERMAL HOLD

[145F / 63C] [140F / 60C] [145F / 63C] [135F / 57C] [120F / 49C]

THERMAL HOLD

[120F / 49C] [120F / 49C]

0:05

1:35

90 88 88 87 87 67 63 62 90 88 88 87 87 67 63 62 82 81 80 80 80 60 56 55

0:05

1:35

88 86 86 85 85 67 63 62 88 86 86 85 85 67 63 62 80 79 78 78 78 60 56 55

0:05

1:35

86 84 84 83 83 67 63 62 86 84 84 83 83 67 63 62 78 77 76 76 76 60 56 55 78 77 76 76 76 60 56 55 69 67 67 67 60 60 56 52 51

0:05

1:35

69 68 67 67 60 60 56 55 61 59 59 59 52 52 48 47

4:00

1:00

20:00

4:00

1:00

18:00

4:00

1:00

16:00

> > > >

4:00

1:00

0:15

> >

0:15