Kenmore 808353 User Manual

}i0it

Do-It-Yourself REPAIR MANUAL

for

Kenmore®

AUTOMATIC DISHWASHERS

Easy-to-fol!ow step-by-step repair procedures and illustrations

Sold by Sears, Roebuck and Co-, Chicago. IL 60684

22/587

Wa Service lAfliat We Sell

Wherever you live, you may be assured that there is a Sears Service Organization as near as your telephone.

The Technical Training Centers pictured are staffed by the finest, most capable Technical Instructors we can find. In turn,

the Technicians in your local

Sears Service Organization have in all probability been trained in one of these schools.

If ever you need us available.

You Can Count On Us,

No part of this booft may bs reproduced iwEthoul the written petrnission of Soars, BoobycU and Co

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WHEN SEARS PEOPLE SAY, "WE SERViCE WHAT WE SELL," THEY MEAN IT.

When you get your appliance from Sears, Roebuck and Co., you get something nobody else"can give you - Sears service. Many families who've been around hate to

buy even a toaster anywhere else. Every month, about 400,000 Americans change jobs and move to other towns or

states. Many more are transferred by their companies. Families on the way up should be prepared for moves around the country.

One Important way to prepare... take a tip from the military who really have to move around the country. Buy your appliances from Sears.

Suppose you live in Denver and you're moving to Bay Shore, N.Y, As soon as you and

the moving van arrive, ail you have to do is call your Bay Shore Sears store and they N

schedule a technician to hook up your Sears appliances.

"We service what we sell" To back up this slogan. Sears has thousands of service

trucks, logging millions of miles each year.

Is it worth it? Ask anyone who's ever had to move a family - around the country or

around the corner. Sears is nationwide.

For handy reference, use this space for

your nearest Sears Service Phone Number.

TABLE OF CONTENTS

A. Water, Detergent, and the Automatic Dishwasher B.

Installation . „

1. Portable 2, Undercounter

Wash System

1- 2 Level

2. 3 Level

3. 2 Level - Compact ft/lodels-. 4* Water Inlet Valve 5, Side Water Inlet/Steam Trap/Venting

6. Motor and Pump Assembly ...............

7.. Hoses and Couplers

8. Dispensers.....

Electrical Controls

1. Timers

2. Selector Switches .........................................

3. Thermostats and Temperature Indicators

4. Door, and Float Switches....

a. Detergent ..................................................

b. Wetting Agent

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■ 16 16

■ 19

- 20 , 21

’ 26

- 27

-■ 42

■ 45 . 45

- 47

■ 49 49

^ 50 . 51

. 59

Wiring Diagrams and Ester line Charts,

1. Wiring Diagrams,,..,.,.,....

2. Ester line Charts....._

3. Voltage Checks..

4. Continuity Check...

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F. Mechanical System...

1, Door Assemblies

2, Racks ......

3. Tub Gaskets

4, Cord Reel ....

5. Casters.........

6. Tubs,

G. Drying System ..................

1. Convection IVlethoc!....

2. Forced Air Method

3. Heating Elements

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a. Power Miser Option.....

H. Pictorial View of Dishwasher.

I Troubleshooting

1. General

2. Water Leaks.

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MISCELLANEOUS SERVICE PART NUMSERS-

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61 61

71 72

78 79

85 85 91

introduction

This service manual is designed to provide you with a basic knowledge of the operation of your Kenmore Dishwasher.

It was not designed to cover a specific model, but covers, in detail, the repair of most components used on any model The production of a service manual for each individual

model is not practical because of the excessive duplication that would result. Thorough study of this manual will provide a good working knowledge of the compo»

oents that may be used within a Kenmore Dishwasher. Application of this knowledge

to a specific dishwasher should make repair relatively simple. Included in this manual are installation instructions and service procedures. The importance of proper installation of any appliance cannot be overstressed. Our

experience indicates that incorrect installation is a major cause of unsatisfactory product performance.

CAUTION - PLEASE NOTE

Sears, Roebuck and Co. assumes no responsibility for any repairs made on our products

by anyone other than our own Service Technicians,

Replacement of the dishwasher tub should be performed only by a qualified technician.

It is recommended that you contact your nearest Service Department for this service.

As a safety precaution, ALWAYS disconnect electrical power from the dishwasher before attempting to make any repairs.

A. WATER, DETERGENT AND THE AUTOMATIC

DISHWASHER

Water

Water is a рптагу ingredient in dewrrmningвиЮтвьс dishwashing resu/is The minerais in water, when in sufficient quantity, wilf cause spotting, filming and the possible discoloration of sonne metals. The minerals which account for the greatest difficulty are calcium and magnesium These minerals determine the hardness of the water

Thé’definition of hard water varies’somewhat However’ mosi'aIjthorîtres”3grëe with the following sca’ie

0 10 4 grains hardness per gallon - soft water 4 to 8 grains hardness per gallon ^ medium water 8 10 12 grains hardness per gallon - hard water

over 12 grains hardness per gallon - very hard water

Automatic dishwashing results are wsibiy affected when calcium and magnesium are present in_a concentr^atron of eight grains per gallon or more As their concentration increases, the problems of spotting and filming can increase proportionately

When spotting and filmirtg are caused by hard water conditions, they will normally be evident on glassware and table ware (silverware) within a short period of time Over a longer period of lime, hard water film can build up on the racks, walls, spray mechanism and heating element of the dishwasher itself. The development of hard water film on the dishwasher may cause additional problems and reduce the efficiency of the dishwâsher due to the build-up of the lime deposits on the pump area, drain hoses, etc

If water supplied to the dishwasher is less than 10 grains hard, spotting and filming can be controlled satisfactorily by the amounl of detergent used, in a properly functioning dishwasher

When correct amounts of detergent are used for the availing water conditions, the water softening ingredients wilt also dissolve calcium and magnesium which have deposited on disfiware surfaces iri preceding dishwashing cycles

medium end hard warer conditions, the amount of detergent used should be increased We recommend filling the

detergent cups under these conditions. In some very hard water conditions, it may also be advisable to place addi

tional detergent in the dishwasher tor the main wash cycle When the total hardness of the water exceeds 12 grains per gallon, it may be advisable to install a water conditioning

unit to remove the catcium and magnesium from the water, in order to insure continuous excellent automatic dish washing results Also keep in mind that when a customer already has a water softener that it may not be function ing correctly or it may not be able to handle the capacity needed for the size of the household

REMOVAL AND CONTROL OF HARD WATER FILM

A 5% Of 6% acidic solution, such as vinegar, will remove hard water film and may be used to determine its presence on glassware Place a small amount of vinegar in a bowl and allow filmed glassware to soak in the vinegar for 3 to 10 minutes Remove from vinegar, rinse and blot dry If the film present was due to hard water, it will have been re moved

The following "home ’ method may be used to remove hard water film from glassware and the dishwasher: Allow dishwasher to fill for the main wash cycle; place two cups vinegar in the water and allow machine to complete the entire cycle Do not place metalware, pSasticware, silverware, cutlery, or detergent in dishwasher when performing

this film stripping process

The Automatic Dishwasher

The automatic dishwasher is blamed for marry problems over which it exercises no control A properly functioning

dishwasher, properly loaded, using the recommended amount of a good dishwasher detergent and havtng the speci

fied water charge will do an excellent job of cleaning Some of the problems that do arise and are caused by conditions other than functional characteristics of tne dish

washer ate as follows;

1 Sudsing - You are familiar with the mountains of suds that result from using the wrong detergent in an automatic

washer A similar problem in an automatic dishwasher can be caused by using improper detergents, using solid

jet dry. a leaking wetting agent dispenser or eKcessively low or high water temperature A complaint of poor

cleaning of dishware may accompany this problem Sudsing leaks In a dishwasher will usually occur at the door gasket or the blower housing On hard to find leaks, suspect sudsing and check the following:

Use a fresh detergent made especially for automatic dishwashing. Such detergents are labeled on each container for automatic or electric d/s/rwasb/bg. When In doubt, consult the Owner's Manual; it contains the recommended

detergents, or use recognizable major brands-

Water temperature recommended on most detergent packages is 140° if water temperature is extremely low П20°1 or extremely high (180°1, then sudsing will surely occur. For best results from detergent and wetting agent liquid, water temperature should be between 140° - 150°F. Solid jet dry should be avoided except if you should choose to place the jet dry in dishwasher for the final rinse only

Hand pre-washing of dishware with Joy or other such dishwashing liquids or soaps prior to loading can cause ex cessive sudsing since this liquid may not be thoroughly rinsed away and, when agitated in the dishwasher, can

cause sudsing A malfunctioning of the wetting agent dispenser mechanism which would allow excessive amounts of liquid jet

dry to be released In the rinse or wash may also cause excessive sudsing Each injection of wetting agent liquid should be approximately 8cc

2 Etching - Etching of glassware is the result of soft glass and an alkaline compound. The surface of the glass has

acluaily been destroyed and no amount of rubbing can restore the glassware to its original state

A quick check for etching can be made by scratching the surface of_the glass with a pin, If the "stain" or "spott ing" (white filmf can be removed, the condition Is an undesirable film but not etching

Permanent etching of glassware can in no way be caused by the operation of the dishwasher. The dishwasher can only be a contributor to the problem if it is not properly circulating the water charge

Make sure the dishwasher is operating normally and there is an adequate supply (volume) of water to insure a good fill each time Check to be certain the water is circulating and the detergent is fresh

There are several factors which cause or contribute to permanent (etching) staining..

1. Extremely hot water 2 Excessive use of detergent for water condition., 3, The water is soft (0 to 4 grains hard, either naturally or thru a softener) 4 Composition Imineral makeup] of water

5. Composition of the glasses themselves Softened water is more detrimental than naturally soft water. We do not imply that the water softener be re

moved There may be a definite need for a softener. We can effectively control only two of the above factors; water temperature and amount of detergent. We recommend when etching is encountered that water temperature be set no higher than 140°; and a reduction

in the amount of detergent used, consistent with good dishwashing resuits One tablespoon per detergent cup may be adequate

This may not completely eliminate etching, but it will help to slow down the process of etching of glassware

3 Dishwnshtng Problems . and Answers

PROBLEM

Dishes Not Clean

Spotting

Filming

Etching . ,

Silverware Stained or Pitted

Bronze Tarnish on Silverware,

Black Marks on Dinnerware ,

Aluminum Discoloration

Brown Stains !Rust) on Dishes or Tub

Dishes Not Dry

POSSIBLE CAUSE & SOLUTION

Water temperature is too low It should be from 140°F. to 150®F (60®C

to 66°C,},

Not enough water in the dishwasher. Using old, lumpy detergent.

Improper loading. Items may be placed in the wrong position A knife or

a slender handle may have prevented spray arm turning

Caused by mineral deposits from hard or soft water left by evaporation

Use a wetting agent such as Jet Dry, Store dishwasher detergent in a cool, dry place

Water is too hard Use more detergent, if hardness is greater than 12

grains, you may need to install a water softener Usually hard water film can be removed by soaking a glass in a half and half solution of

vinegar and water.” if this proves effective, load the filmed glasses and dishes into the dishwasher Operate on LIGHT WASH cycle. Slop the machine after it has filled for the wash phase of the cycle and pour

in two cups of vinegar Close the door and let the machine complete the cycle

“Some commercial products such as Glass Magic may be available in

your area.

Etching appears as a film and is impossible to remove. It can be retarded

by using smaller amounts of detergent- Thorough rinsing is important; so load your dishwasher properly. Do not overload it. Dishwasher water temperature should be at 140°F. I60“C ).

Can be caused by direct contact with detergent or prolonged contact

with acid or salty foods Do not lei detergent drop on silverware Rinse tableware promptly if it has been exposed to staining foods.

Silverplate has worn off, exposing base metal, Silver polish can remove

tarnish but replating is necessary for permanent solution

Can be caused by metal objects rubbing the plate. Remove the marks by

soaking the plate in a mild bleach solution After this, wash the plate in a normal dishwasher cycle.

Minerals in your water supply and high water temperature in

combination with some detergents can darken aluminum

Too much iron in your water. You may need iron removal equipment

installed

The water is too cool It should be at least 140“F {60°C ) at the dish

washer

Improper loading Load dishes so the water can run off. On machines without forced air drying, try opening the door slightly at

the beginning of the dry cycle. Unload after about an hour

Select "Hot Dry"

Use of wetting agent for those dishwashers equipped with automatic dis

pensers helps water to sheet off faster

Dishes Chipping

Dishwasher Odor

Noise

Water in Tub Bottom

Improper loading Load glassware and dishes between the supports so

they are stable and cannot bump each other

Soiled dishes held too long in dishwasher Use RINSE 6 HOLD cycle for

dishes that will be washed later.

Some hard object Ibolile cap, measuring spoons, etc } may have fallen

into the bottom of the tub Clean the pump

A small amount of water wilt remain in the bottom of the tub alter each

cycle

CLEANING MINERAL DEPOSITS FROM PORCELAIN SURFACES

The following procedure is safe if the instructions are carefully followed Many complaints of porcelain deterioration have been traced to a surface discoloration due to the presence of iron,

manganese or calcium in the water supply In areas having a high mineral content in the water, particularly iron, discoloration or stains can usually be removed by the following method;

1 Use water softener Resin Cleaner This compound is available from Sears Plumbing and Heating Department. 2 Pour 8 ounces of the compound into the bottom of the tub 3 Fill the 2nd wash detergent cup with dishwasher detergent and close the cup 4 Select a normal cycle - must have 2 washes and 4 rinses 5 Allow the dishwasher to complete all washes and rinses It is not necessary to complete the dry cycle . 6 DO NOT place dinnerware or silverware in the dishwasher during the cleaning operation

CAUTION:

Because of the obnoxious odor of the clearter in solution - Do Not open the dishwasher

door until the completion of the last rinse.

fov/ To Rertiove The

Access Panel

Loosen the two bottom attach screws in the access

psnsS

Open dishwasher door. Remove the two top attach screws Close door Access pane! can now be removed by pulling straight oH

в. INSTALLATION

Portable Dishwasher

Hoi Water Connections - Portabie Dishwasher

1. Attach the AERATOR ADAPTOR furnished with the dishwasher to the sink faucet.

2. Check the power outlet

A. Will it take the three-prong plug on the power cord?

B. Is the outlet grounded?

CHECKING POWER OUTLET

The dishwasher will operate on regular house current. Do not use any other appliance on the same circuit. Use a circuit with at least a 15 Ampere, but not more than a 20 Ampere fuse. The dishwasher power cord is a three prong type and must be plugged into a three hole grounded outlet. The dishwasher MUST BE GROUNDED for safe operation. Do not, under any circumstances, remove the power supply cord ground prong.

Under Counter Dishwasher Drain, Water, and Electric Supply

Shadod sections of ГСЯТ end sides end floor reoresent ooe« er-es ow'eitpbfe loi cotry of PMjiti&mg ofto etecifjcai «пси

□raid boM l>e iocititd in leidapt »iO«{ И you Imehd lo con nect ic link or drsin. HOLE MUST Ш At LEAST r* IN DiAMETE«

<o «suit Kiequjt« cfeirince

io> the drain hox«

iHaek. will «s«i area

3 n ight № tch tide шажа

area

floor ftccets irei.

\ A if drain it lo b< rout^d’

thiouphihe flEKtt

FIGURE 1

Copper tubing must have a minimum I.D. of 3/8 inch. Sears has a waterline kit which includes all the fittings and instructions you need for most installations.

How much water volume is needed? A minimum flow of 8 quarts of hot water is required in 60 seconds

at your kitchen faucet tap with the aerator removed.

IMPORTANT:

Provide a separate circuit with fuse or circuit breaker rated for at least 15 Amps but not more than 20 Amps.

IMPORTANT:

This Appliance Must Be Permanently Grounded In Accordance With The National Electrical Code and Local Codes and Ordinances.

When installing the dishwasher:

1. Connect (in junction box) incoming black lead to dishwasher black lead; and incoming white lead to dishwasher while lead.

Check this

2 Attach grounding wire to green grounding screw

The joining of aluminum building wire to stranded copper wire leads on the dishwasher involves special problems It should be done only by qualified personnel using materiai recognized by U/L (or CSAJ as suitable

DRAIN. Improperly installed drain hoses can kink and result in poor washabiiity or failure of the dishwasher to drain Do not use the drain hose supplied with the dishwasher for the water supply line It is not a reinforced hose

and will burst under water line pressure

NOTE;

A properly operafmg dishwasher will have approximately 2 cups of dean water remaining in the tub at the com-

pleiion -of'the cycle.

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

Be sure to remove plug from disposer inlet before attaching drain hose.

CAUTION:

SINK AT LEFT

FIGURE

_ _ _ IMPORTANT:

After positioning under the counter, the front leveling legs should be raised slightly higher than the rear legs.

DRAIN HOSE CONNECTION TO SINK DRAIN

2 i D COPPER TUBING

F IG U RE 3

Sears "Y" Branch Tailpiece and Connector Kit No. 72% makes this connection easy. It Includes all necessary fittings and complete instructions •

DRAIN HOSE CONNECTION THROUGH FLOOR

AiR GAP KIT AVAILABLE AT SEARS

F IG U RE 4

if the dishwasher drain hose is routed through the floor to a separate trap, the trap must be vented to prevent siphoning, To provide proper venting, install an Air Gap Kit (available at Sears) in the countertop. Route drain hose up to the iniet side of the Air Gap. Continue drain line from outlet side of Air Gap down through floor to separate trap.

Models Equipped With Installation Module

PLANNING Deiermine the routing for the water supply, electrical wiring and drain line before proceeding with the actual in-

siBlIation so that space conflicts do not occur Important - Do not route pfumbing or wiring in front of the motor or dishwasher support channels

CUTTING ACCESS HOLES Access holes in the cabinet sides or floor should be located within the zones shown m Figure 5 The hole for the

drain lineshouid be 2" diameter minimum The two holes for the electrical and plumbing lines should be T diameter minimum Keep the etecuicarand plumbing lines separated

INLET VALVE JUNCTION BOX ASSEMBLY

Locate the valve and junction box assembly as shown in Figure 6 using the template supplied Attach the assembly to the floor through the two holes near the junction box (If unable to attach the assembly to the floor, locate according to the template, connect water and electrical as described below, then connect the assembly to the side base of the machine with the bracket provided after the machine is in the cabinet 1

WARNING: IT IS ESSENTIAL THAT THE ASSEMBLY BE LOCATED CORRECTLY TO MAINTAIN ELECTRICAL

clOTaFjces and prevent damage during dishwasher installation.

ELECTRICAL

All wiring must be in accordance with eiectrica! codes The dishwasher operates on 115 volt, 60 cycle power Pro vide a separate circuit with a fuse or circuit breaker rated lor at least 15 amps but not more than 20 amps

GROUNDING INSTRUCTIONS This appliance must be connected to a grounded metal, permanent, wiring system: or an equipment grounding

conductor must be run with the circuit conductors and connected to the equipmenTgrounding terminal A green ground screw terminal is provided in the junction box Connecting the circuit conductor ground, along with the molded receptacle green pigtail, automatically grounds the dishwasher

install the wiring, routing it within the zones shown in Figure 5, Do not run it across in front of the motor Connect

the circuit black lo the machine black, and circuit white to the machine white, using wire nuts If house wiring is aluminum, a UL or CSA listed antioxidant compound must be used with listed aluminum-to-copper connectors Connect the circuit conductor ground wire under the green ground screw Refer to Figure 6 Replace the junction box cover '

CONDUCTOR GROUND WJRE

FIGURE 6

GREHN GROUND S C R E W

WAT ER SUPPLY

Plumbing musi comply with local codes It is recommended that a shut-off valve be installed m the line from the supply to the dishwasher The water supply must be able to supply a minimum of 9 quarts in one minute Route the line, as shown in Figure 7 (Refer to Figure 5 for permissible routing areasi Do not run it across in front of the motor Piping must not be kinked The connection to the valve is made with a 3/8" male pipe thread right angle adapter Assemble the adapter to the valve, using pipe compound or teflon tape, with a wrench on the adapter and a wrench over the metal bracket enclosing the fitting on the valve If solder connections are used, use care to see that valve is not overheated CAUTION! Overheating will damage the valve Clean all foreign material from the pipe and threads before making final connections ' ' ■ ' ■

IMPORTANT:

ILIRN ON THE WATER SUPPLY CHECK ALL PLUMBING AND DISHWASHER CONNECTIONS FOR WATER

leaks'' ~ ^ ^ ^ ^ '

WARNING! Do not leave line pressure to the water valve in freezing temperatures during construction, remodeling, etc Do not

use the drain hose supplied with the dishwasher for the water supply line It is not a reinforced hose and will burst under water line pressure ■

OBAIN Referring lo Figures 8 and 9, install the drain connection parts lY branch tail-piece, disposer adapter, air gap, etc 1

in the location selected Install the drain hose corner support in the corner oí the cabinet next to the dishwasher directly above the 2" access hole The top oí the support should be 30" above the kitchen floor 124 ' above cabinet floor) IMPORTANT:

THE DRAIN LOOP MUST BE FIXED AT A MINIMUM HEIGHT OF 32 INCHES BY USE OF A SUITABLE CLAMP OR SUPPORT ONE TYPE OF WHICH IS SHOWN BEI

...

OW.

Route the hose from the dishwasher cabinet through the 2" access hole, then behind the corner support to the drain and connect Be sure all bends are smooth and the hose is adequately supported The free end of the hose should extend into the dishwasher cabinet 20" if the hole is on the left side, and 32" if the hole is on the right side Cut the hose to length, being sure cut is square

Ait Gap Ki! iAvsilable at SearsS

1 Required by some local plumbing

codes when conneciing lo a disposer

2 Required when conneciing 10 a separate

trap beneath the floor

Move your dishwasher, as necessary, to: 1, Align the front of the dishwasher, as dose as possible, with the front of the cabinets,

2 Make the space between the dishwasher and the adjoining cabinets the same on each side and the same width top

' to bottom. Use the stubby screwdriver or 7/32” socket to adjust the leveling screws. They must be set firmly against

the floor.

TWO WAYS TO ANCHOR YOUR DISHWASHER

FIGURE 11

You MUST anchor your dishwasher to keep it from tilling when the door is opened or dosed.

Countertop Anchoring:

1. If the countertop mounting bracket flange is longer than you need, mark it, remove it, and saw off the unneeded part.

2. Adjust leveling screws, if necessary, so that the mounting brackets touch the underside of countertop .

3 Screw the mounting bracket firmly to the countert.op,

4 Open and dose the dishwasher door. There shouid be no interference or scratching as it moves.

Floor Anchoring: Difficult procedure. Use only where the countertop bracket cannot be used 1 Use 1/4" lag screws through the holes provided as Illustrated

2. Use expansion fasteners if the floor is concrete After the anchoring is completed, replace the toe plate assembly

You will notice that the vertical height of the toe plate is adjustable to fit neatly against your floor or floor covering

C. WASH SYSTEM

I;'!*' 1^x4:

......

F IG U RE I 3

Two Level Wash Feature

A separate spray tube or rotating spray arm assures excellent washability in the upper rack, and another rotating spray arm thoroughly washes all dishes in the lower rack This arrangement permits complete flexibility of loading without concern of blocking the water pattern to either rack See Figure 13

1 Water Charge iSee Figure 14Î

Water enters the dishwasher through the solenoid operated water inlet waive

The valve is energized through the timer Water will enter the machine for approximately one minute (All dish washers are time filled 1 Some models fill for 90 seconds Also some models have 45 second water charges built into water miser and normal wash cycles Refer to tech sheet in console

NOTE:

The float switch controls the amount of water entering the dishwasher The fill is also time controlled If the

timer fails to advance or the water pressure is extremely high, the float switch will open the circuit to the water inlet valve thus preventing a flood If the float sticks or does not cut power to the valve, the timer acts as a safety to turn power off after the allotted fiit time The float and timer switch will not protect against a mechanical failure

of the valve

To satisfactorily clean dishes, the 24" dishwasher rrrust have a water charge of 8 to 11 quarts The 18" models

require 6 5 to 8 quarts If poor washability is experienced, be certain to check for the correct water charge

FLOAT

NORMAL CHARGE-

SWITCH

F IG U RE 14

2 Testing Water Charge Level

To check for orooer water level, pour the minimum charge of 8 quarts of water into the tub and make a reference mark with a grease pencil or crayon at the edge of the waterline Then pour in an additional 1 A quarls of water to make the maximum charge, and make another reference line at the edge of the water line. Set the timer to a portion of the, operating cycle for "drain" and allow the drain pump to pump out the water Allow the tirne to ad vance into a '"’fiir' period of the operating cycle and allow the norma! amount of water to im the tub Alter the water inlet valve has shut off, compare the edge of the water line with the reference marks made above The water charge must be between the two lines Remove ihe marks after completing this test i he water level snouio cover

the healing element

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FIGURE 15

3. Sprsf Arm Assembly The spray arm is mourned to the upper pump housing. Water from the sump is pumped through the upper pump

housing where it is directed to the spray arm. The water is discharged from ports in the spray arm as shown in Figure

15. The velocity of the water discharged from the ports and the angle of the port opening causes the spray arm to rotate.

The rotation of the spray arm assures the distribution of water to ail corners of the tub. A stuck or split spray arm can cause leaks or poor washabiiity. On complaints of this type, inspect the spray arm

closely for a possible split seam. Be sure the spray arm turns freefy on the pump housing, If binding is encountered, it will be necessary to replace the pump housing or spray arm, or both.

4 Spray Tube

The spray tube or middle spray arm directs water to the upper rack to assure complete washing and rinsing of all plates and glassware. Water is pumped from the sump, by the lower impeller, through a hose connected to the spray

tube or middle spray arm. On models having the upper roto rack, be certain the racks turns freely Unsatisfactory washing of the items in the

upper rack will result if the rack binds, is prevented from rotating by a tali item in the lower rack, or water is not being discharged from the spray tube.

Periodic cleaning of the spray tube is recommended One method is shown is Figure 16 The loosened particfes may

be flushed from the lube by operating the dishwasher in a wash cycle with the cap removed.

FIGURE 16

LwrOvol XA/oish Systom

The upper or third levei wash system used in certain models is intended to give increased wash efficiency for articles in

the upper rack. See Figure 37 A St B.

ciPiiDi: llD

FIGURE 17A 17B

The water for the system in 17A Is bled off from the middle wash system by means of a "Y" adapter in rriain supply tube and a branching "L" shaped supply tube from that point to the top center of the tub In t]’® ^ arm^s^suppiied directly from the pump by means of an external supply tube - The tower in the J

aim tefescopes upward washing the underside of the upper rack To remove the tower unscrew the lower sect.on of

the tower counterclockwise

A Removal of Middle Spray Arm

1 Remove stainless steel cotter pin in tower end of pjaslic spray arm spindle underneath the black plastic supply

arm

2 The spray arm and spindle can now be lifted off the supply arm

B Removal of Upper Spray Arm Only

1 From below, in tub, remove two screws which hold spray arm and bearing assembly to plastic distributor

(See Figure IS )

2 The assembly wilt then drop loose If it is desired to remove the arm from the bearing assembly, the two

screws that hold them together are now accessible '

NOTE

In Mid-1980 the design of the third spray arm was changed The spray arm Is removed by removing the center

mounting screw [See Figure 19]

F IG U RE 18

F IG U RE 19

Two Level ~ Compact Models

The top spray arm water supply system on all 18" Ccompact) dishwashers is completely externa! of the wash chamber, A hose from the back side of the pump housing runs behind the back center of the wash chamber (tub) up to the delivery

tube To remove: (See Figure 20)

1. Disconnect power supply to dishwasher, 2 Loosen and remove clamp attaching delivery hose to pump housing NOTE: Water remaining in hose artd pump should

be caught in a bowl

3 Remove four W) screws that attach the delivery tube to the tub assembly. 4 Remove hose by pulling slowly through the opening in rear of tub.

Reverse procedure to reinstall and check for leaks and kinks.

DELIVERY

TUSE

FIGURE 20

Water Inlet Valve

The water inlet valve is solenoid operated and when energized permits a constant controlled flow of water to enter the dishwasher tub,. The valve is designed to operate over a pressure range of 20 pounds per square inch minimum to 120 pounds per square inch maximum. The frequency and length of time the valve is operating is controlled by the timer. Water inlet valves differ only in amount of water they deliver (flow rate) which is governed by the aperture size in the flow washer See Figure 21. Some models may have a three orifice flow washer

IDENTIFICATION MARKINGS

F IG U RE 21

A Operation

Fiqure22 shows a cross section of the water inlet valve in its ciosed position and Figure 23 shows it in its open position. The water pressure al B and C has equalized because the bleed hole opening permits water to flow from

B to C Pressure at A is atmospheric (Figure 22)

The valve remains dosed because the higher water line pressure al C is greater than the atmospheric pressure at

A When the solenoid coil is energized by the timer, the plunger is withdrawn from the diaphragm opening Water in comDariment C wiil then escape through the diaphragm opening causing the pressure in the comparimenl to fall to almost almoshpheric pressure. The higher water line pressure al B forces the diaphragm away from its seal, opening the valve Water then flows through the screen under the diaphragm and out the valve.

When the solenoid releases the plunger, the hole in the center of the diaphragm is sealed. Water then flows through the bleed hold in the diaphragm until the pressure in compartment C rises to water Ime pressure

the diaphragm at water line pressure in compartment C is greater than the area al water line pressure in compartment

B, the diaphragm is forced dosed. The pressure al A is always lower than full ime pressure because water passing through the valve is escaping to the open air.

B Testing

To lest operation of water inlet valve, place the leads of a volt meter across the lemninals of the solenoid in any till phase of the operating cycle where the water inlet valve should be energized If the meter indicates line voltage, water should flow into the tub if water does not flow into the tub, either the water inlet valve is defective or the water supply is inadequate Make certain the hot water faucet is fully on If the water supply is not at fault, the water inlet valve is defective

C Sen^fcing ■ -

To Clean Operating Parts of the Valve:

1 Remove valve bracket from tub or installation module 2 Remove 4 screws holding solenoid, valve body and bracket together. 3 Remove the plunger housing, spring and plunger

4. Check the parts for defects, dirt particles or for formation of lime 5 Check to make sure the tiny bleed holes in the diaphragm are not clogged. See Figure 24 Clean bleed holes, if

necessary, using a pin or needle

BLEED HOLES

G UR E 24

6 Clean the screen mesh of any rust particles Use running water to remove any large particles: then, complete

the job by blowing screen clear The screen mesh must be absolutely clean and free of any damage

7 Check flow washer for wear or damage When reinstalling the flow washer, position it in the valve so that

the markings on the washer face the incoming flow of water,

NOTE:

The Timer Conirois the Operetson of the Wewr Inlet Vslve end therefore, the emount of water entering the machine The Valve should he energized for 45 to 90 seconds depending on model and cycle selected The float switch will shut the water off at the proper level The Timer controls the water charge on short fills and acts 3$ 3 safety on full water charges

Water Inlet Valve Kit

Undercounter 808668

Portable 808667

KITS INCLUDE: 1 water valve

This kit is used for several applications Use the flow washer in this kit which will provide the correct flow rate for your dishwasher

METAL WASHER

FLOW

WASHER

PLASTIC RETAINER

EilSi W

! meia! washer

4 flow washers

undercounter

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

SCREEN

"^CURVED SIDE

1 plastic retainer 1 screen 2 terminal insuiators

1 sealer washer (undercounter oniyi

Install parts in the order illustrated

PORTABLE

SEALER WASHER

1, Remove plug from valve, discard. Remove any foreign particles from valve.-

2 install flat mstal washer, ^

should be against the flat metal washer.

3' Choose correct flow washer from the chart, there are identification markings Qr> the fiat side of

' the flow washer, Instali the flow washer with identification markings facing you. Curved side

2.0 2 5

gal/tTiin

1 75110%

1.6 ± 10% €H

1.2+ 10%

DISHWASHER

WIDTH

24"

IB"

FtLLTlME

60 _sec. 90 sec

45 secï^

While

OB1GÍNAL VALVE

Green Veliow

Lt, Blue

Red

Blue

make sure the correct flow washer is used. ^

*Some models with 90 sec. fill time use an abbreviated water fill (45 sec,) on certain cycles, ^ If the valve on the dishwasher is pink, it is a replacement vsive. Use the same flow washer as in the valve.

Refer to dishwasher width vs, fill time to make sure it is the correct flow washer

Install plastic retainer into valve with center protrusion facing you. Push until it snaps into the groove

cut into the body of the valvePress screen into valve, being careful not to crush or change the shape of the screen. This is important

to keep dirt particles out of the valve that will cause it to malfunction. The solenoid and bracket on this valve may have to be rotated in relation to the valve body to match

the original valve as illustrated. You need only to take three of the four screws out to rotate the solenoid and bracket-

7. Install the sealing washer on undercounter valves.

8. Mount the valve to the bracket or frame of the dishwasher.

9. Recheck selection of flow washer by operating dishwasher through the fill phase, correct for the flow washer you have selected.

lake sure fill time is

Side Water Inlet, Steam Trap and Venting

The side water inlet shown in Figure 25A provides an effective steam trap at all tirnes and eliminates vapor escape during any phase of the dishwashing operation The vapor is blocked from escaping by the water trapped in the

bottom of the side water inlet

The side water inlet assembly fits into a bracket an the side of the tub The plastic nut secures the assembly to the tub Removal of the nut from inside the tub allow'S the inlet unit to be easily removed from the bottom of the dishwasher

FIGURE 25A

The water inlet assembly shown in Figure 25B combines the fill and blower opening in the tub On models without forced air drying, the lower portion of the housing and blower motor is not installed

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