Whirlpool GU1200XT, GU1500XT User Manual

CONSUMER SERVICES TECHNICAL

EDUCATION GROUP PRESENTS

POINT VOYAGER DISHWASHER

KD-12

MODEL NUMBERS:

GU1200XT GU1500XT

JOB AID

Part No. 8178022

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.

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

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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

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2525

3737

III

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.

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

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

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

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.

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.

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.

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.

High

Rinse

High

Low

High

Low

Purge

Rinse

High

Low 130 F

(54 C)

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)

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)

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