2008 double drawer refrigerator_freezer under counter products

8/2/2019 2008 Double Drawer Refrigerator_freezer Under Counter Products

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TECHNICAL EDUCATION

JOB AID 4317434

R-107

2008 DOUBLE DRAWER

REFRIGERATOR / FREEZER

UNDER COUNTER

PRODUCTS

KDDC24RVS

KDDO24RVX

KDDC24CVS

KDDO24CVX

KDDC24FVS

KDDO24FVX

JUD248RCRS

JUD248RCCX

JUD248CCRS

JUD248CCCR

JUD248FCRS

JUD248FCCX


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WHIRLPOOL CORPORATION assumes no responsibility for any repairs madeon our products by anyone other than In-Home Service Professionals.

FORWARDThis Job Aid 2008 Double Drawer Under Counter Refrigerator / Freezer Products (Part No.4317434), provides the In-Home Service Professional with information on the installation, opera-tion, and service of the 2008 Double Drawer Refrigerator / Freezer. For specic information on

the model being serviced, refer to the Use and Care Guide, or Tech Sheet provided with therefrigerator / freezer.

The Wiring Diagrams used in this Job Aid are typical and should be used for training purposesonly. Always use the Wiring Diagram supplied with the product when servicing the refrigerator /freezer.

GOALS AND OBJECTIVESThe goal of this Job Aid is to provide detailed information that will enable the In-Home ServiceProfessional to properly diagnose malfunctions and repair the 2008 Double Drawer Refrigerator/ Freezer.

The objectives of this Job Aid are to:

Successfully troubleshoot and diagnose malfunctions.

Successfully perform necessary repairs.

Successfully return the refrigerator / freezer to its proper operational status.

Copyright 2009, Whirlpool Corporation, Benton Harbor, MI 49022


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TABLE OF CONTENTSPage(s)

GENERAL .............................................................................................................................. 1-1Refrigerator / Freezer Safety.............................................................................................. 1-1Design Specications................................................................................................. 1-2 , 1-3Model And Serial Number Label Location .......................................................................... 1-4

INSTALLATION INFORMATION ............................................................................................ 2-1Electrical Supply Requirements ......................................................................................... 2-1Location Requirements ...................................................................................................... 2-2Water Supply Requirments ................................................................................................ 2-3Product Dimensions ........................................................................................................... 2-4

THEORY OF OPERATION .................................................................................................... 3-1Operating Systems..................................................................................................... 3-1 , 3-2Refrigerator/Freezer Combo Cooling Operation ................................................................ 3-3Refrigerator/Freezer Combo Defrost Operation ................................................................. 3-4

COMPONENT ACCESS ........................................................................................................ 4-1Drawer Removal ................................................................................................................ 4-1Drawer Installation ............................................................................................................. 4-2Removing The Drawer Front .............................................................................................. 4-3Removing The User Interface Board .................................................................................. 4-4Installing The User Interface Board .................................................................................... 4-5Component Locations ........................................................................................................ 4-6Icemaker ............................................................................................................................ 4-7Removing The Separator .................................................................................4-8 , 4-9 , 4-10Evaporator Components ...................................................................................................4-11Machine Compartment Components ..................................................................... 4-12 , 4-13Removing The Water Valve .............................................................................................. 4-14

Condenser And PC Board ................................................................................................ 4-15DIAGNOSTICS AND TROUBLESHOOTING ................................................................... 5-1Main PCB Connector Function...........................................................................5-1 , 5-2 , 5-3Display PCB Connector Function....................................................................................... 5-3Built-In Board Diagnostics .................................................................................................. 5-4

WIRING DIAGRAMS .................................................................................................... 6-1 , 6-2Product Specications and Warranty Information Sources ................................................ 6-3


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NOTES


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1-1

GENERALREFRIGERATOR / FREEZER SAFETY

Your safety and the safety of others are very important.

We have provided many important safety messages in this manual and on the appliance.Always read and obey all safety messages.

This is the safety alert symbol.

This symbol alerts you to potential hazards that can kill or hurt you and others.

All safety messages will follow the safety alert symbol and either the wordDANGER or WARNING. These words mean:

All safety messages will tell you what the potential hazard is, tell you how to reduce the chanceof injury, and tell you what can happen if the instructions are not followed.

You can be killed or seriously injured if you dontimmediately follow instructions.

You can be killed or seriously injured if you dont

follow instructions.

WARNING

DANGER


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DESIGN SPECIFICATIONS

24" Drawer ModelsDouble Refrigerator Drawers

Two refrigerator drawers provide additional storage options in the kitchen or other areas of the home.

Euro SeriesIJUD248RCRS

Overlay - Custom Panels and Handles RequiredJUD248RCCX

Refrigerator/Freezer Drawers (with ice maker and water filter)

Upper refrigerator drawer and lower freezer drawer provide additional storage options in the kitchen or other areas of the home.

Factory-installed ice maker in lower drawer ensures a constant supply of ice on hand at all times.

Euro SeriesJUD248CCRS

Overlay - Custom Panels and Handles RequiredJUD248CCCX

Double Freezer Drawers (with ice maker and water filter)

Two freezer drawers provide additional storage options in the kitchen or other areas of the home. Factory-installed ice maker inlower drawer ensures a constant supply of ice on hand at all times.

Euro SeriesJUD248FCRS

Overlay - Custom Panels and Handles RequiredJUD248FCCX


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DESIGNSPECIFICATIONS (continued)

24" Drawer Models

Double Refrigerator Drawers

Two refrigerator drawers provide additional storage options in the kitchen or other areas of the home.

Architect Series II

KDDC24RVS

Overlay - Custom Panels and Handles Required

KDDO24RVX

Refrigerator/Freezer Drawers (with ice maker and water filter)

Upper refrigerator drawer and lower freezer drawer provide additional storage options in the kitchen or other areas of the home .Factory-installed ice maker in lower drawer ensures a constant supply of ice on hand at all times.

Architect Series IIKDDC24CVS

Overlay - Custom Panels and Handles RequiredKDDO24CVX

Double Freezer Drawers (with ice maker and water filter)

Two freezer drawers provide additional storage options in the kitchen or other areas of the home. Factory-installed ice maker i n lowedrawer ensures a constant supply of ice on hand at all times.

Architect Series IIKDDC24FVS

Overlay - Custom Panels and Handles RequiredKDDO24FVX


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MODEL AND SERIAL NUMBER LABEL LOCATION

The Model/Serial Number label location is shown below.

After pulling the upper drawer out, the Model/Serial Number label is onthe inside upper right corner.

Model and Serial

Number Location


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Before you move the refrigerator into its nallocation, it is important to make sure you havethe proper electrical connection:

A 115 Volt, 60 Hz, AC only 15- or 20- amp electri-cal supply, properly grounded in accordancewith the National Electrical Code and localcodes and ordinances, is required.

It is recommended that a separate circuit,serving only this appliance, be provided. Usea receptacle which cannot be turned off bya switch or pull chain.

INSTALLATION INFORMATIONELECTRICAL SUPPLY REQUIREMENTS

Electrical Shock Hazard

Plug into a grounded 3 prong outlet.

Do not remove ground prong.

Do not use an adapter.

Do not use an extension cord.

Failure to follow these instructions canresult in death, fre, or electrical shock.

WARNING

Recommended Grounding MethodThis appliance must be grounded. This appli-ance is equipped with a power supply cord hav-ing a 3-prong grounding plug. The cord must beplugged into a mating, 3- prong, grounding-typewall receptacle, grounded in accordance withthe National Electrical Code and local codesand ordinances. If a mating wall receptacle isnot available, it is the personal responsibility

of the customer to have a properly grounded,3-prong wall receptacle installed by a qualiedelectrician.

Excessive Weight Hazard

Use two or more people to move andinstall refrigerator.

Failure to do so can result in back orother injury.

WARNING


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LOCATION REQUIREMENTS

NOTES:For the refrigerator drawers to be ushwith the front of the base cabinetsremove any baseboards or moldings fromthe rear of the opening. See ProductDimensions and later in this sectionOpening Dimensions (both styles).

It is recommended that you do not installthe refrigerator drawers near an oven,radiator, or other heat source.

Do not install in a location where thetemperature will fall below 55F (13C).

OPENING DIMENSIONS(BOTH STYLES)

Height dimensions are shown with theleveling legs extended to the minimumheight of 1/4" (6.35 mm) below therefrigerator drawers.

NOTE: When leveling legs are fully extendedto 1" (25 mm) below the refrigeratordrawers, add 3/4" (19.05 mm) to the

height dimensions.See Product Dimensions.

If the oor of the opening is not level withthe kitchen oor,shim the opening to make it level with thekitchen oor.

Critical Dimensions:

A. 14 3/4" (37.5 cm) utility opening

B. 24" (60.96 cm) minimum opening width

1/2 "

(1.3 cm)

14 3/4"

(37.5 cm)

24"

(60.96 cm)

min.

24" (60.96 cm) min.

343/8" (87.3 cm) min.

35" (88.9 cm) max.

B

AKeep ammable materials and vapors,

such as gasoline, away from refrigeratordrawer(s).Failure to do so can result in death, explosion,

or fre.

WARNING


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WATER SUPPLY REQUIREMENTS

Gather the required tools and parts beforestarting installation.Read and follow the instructions provided withany tools listed here.

TOOLS NEEDED:Flat-blade screwdriver7/16" open-end wrench1/2" open-end wrench or two adjustablewrenches1/4" nut driver and drill bitCordless drill and drill bit

NOTE: Your refrigerator dealer has a kit avail-able with a 1/4" (6.35 mm) saddle-type shutoffvalve, a union, and copper tubing.

Before purchasing, make sure a saddle-typevalve complies with your local plumbing codes.Do not use a piercing-type or 3/8" (4.76 mm)saddle valve which reduces water ow andclogs more easily.

IMPORTANT:If you turn the refrigerator on before thewa ter line is connected, turn the icemaker OFF.

All installations must meet local plumbingcode requirements.

Use copper tubing and check to makesure there are no leaks Install copper tubing only in areas where thehousehold temperatures will remainabove freezing.

WATER PRESSURE

A cold water supply with water pressure ofbetween 30 and 120 psi (207 and 827 kPa)is required to operate ice maker. If you havequestions about your water pressure, call a

licensed, qualied plumber.

Reverse Osmosis Water Supply

IMPORTANT:The pressure of the water supply coming outof a reverse osmosis system going to thewater inlet valve of the refrigerator needs tobe between 30 and 120 psi (207 and 827kPa).

If a reverse osmosis water ltration systemis connected to your cold water supply, the

water pressure to the reverse osmosis sys-tem needs to be a minimum of 40 to 60 psi(276 to 414 kPa). If the water pressure to thereverse osmosis system is less than 40 to 60psi (276 to 414 kPa):

Check to be sure the sediment lter in thereverse osmosis system is not blocked.Replace lter if necessary.

Allow the storage tank on the reverseosmosis system to rell after heavyusage.

If you have questions about your waterpressure, call a licensed, qualiedplumber.


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PRODUCT DIMENSIONS

STYLES 1 AND 2: ARCHITECT

SERIES AND OVERLAY

Height dimensions are shown with the

leveling legs extended to 1/4" (6.35 mm)below the refrigerator drawers.When leveling legs are fully extendedto 1" (25 mm) below the refrigeratordrawers, add 3/4" (19.05 mm) to the heightdimensions.The power cord is 60" (152.4 cm) long

Style 1: Architect Series

14 7/8 "(37.8 cm)

34 1/8 "(86.7 cm)

3/8 "(1.0 cm)

14 7/8"

(37.8 cm)

Style 2: Overlay

14 7/8"(37.8 cm)

34 1/8"(86.7 cm)

3/8 "(1.0 cm)

14 7/8"(37.8 cm)


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THEORY OF OPERATIONOPERATING SYSTEMS

1) General Cooling Operation of

the RR (All Refrigerator) and FF

(All Freezer)

There is an upper chamber and lower cham-ber with each chamber having a dedicateddrawer. Even though two chambers are notphysically separated, there is one dedicatedthermistor for each chamber (total of two perunit) that is located in front of the fan cover.Each chamber has a dedicated DC evapora-tor motor (a total of two) that is mounted in

front of the fan cover.

A thermistor is used to measure the tem-perature of each chamber at real samplingtime. This measured temperature is usedto control the operation of the compressor,DC condenser fan motor and DC evaporatorfan motors as well as to display the chambertemperature. The displayed temperature,however; is not the real time temperature; it isa computed weighted average temperature to

minimize the possible confusion of averageend users.

As the usual start up, the main PCB turns onthe condenser fan and after 10 seconds thecompressor will start. The compressor willcontinue to run until the temperatures of boththermistors reach the set temperature -4F(the number 4 is subject to design change).While the compressor is on, the main PCBturns only one of two evaporator fans on.

The evaporator fan in the upper chamberacts as a primary source of air movement ofthe both chambers. When the upper thermis-tor reaches the set temperature of -4F, theupper evaporator fan motor stops, and logicreads the lower thermistor temperature. Ifit is higher than the set temperature of -4F,the main PCB will turn on the lower evapora-tor fan and continue to run the compressor.

Normally, this switching between upper andlower evaporator fans repeats several times

before both temperatures reach below theset temperature of -4F. Once the tempera-tures of both thermistors reach below the settemperature of -4F, the main PCB shuts offthe compressor and both evaporator fans.Main PCB will turn off the condenser fan 2minutes later.

The condenser fan and the compressor willbe turned on again when one of the thermis-tor temperatures reaches the set tempera-

ture 4F. In this event the process listedat the beginning of this section will repeatbefore shutting off the compressor again.

2) General Cooling Operation of the

RF (Combination Unit)

The upper chamber and lower chamber arephysically divided by the center mullion witheach chamber having a dedicated drawer.

As the two chambers are physically andthermally separated, there is one dedicatedthermistor for each chamber (total of two)located in front of fan cover. Each chamberhas a dedicated DC evaporator motor (a totalof two). These DC evaporator fan motors arealso mounted in front of the fan cover.

The thermistor is used to measure the tem-perature of each chamber at real samplingtime. This measured temperature is used

to control the operation of compressor, DCcondenser fan motor and DC evaporator fanmotors as well as to display two chambertemperatures. The displayed temperature,however; is not the real time temperature; it isa computed weighted average temperature tominimize the possible confusion of averageend users.

Continued on next page


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3-2

As the usual start up, the main PCB turnson the condenser fan and after 10 secondsthe compressor will start. The compressorwill continue to run until the temperatures ofboth thermistors reach the set temperaturefor each chamber of -4F (the number 4 is

subject to design change). While the com-pressor is on, the main PCB turns only one ofthe two evaporator fans on. The evaporatorfan in the lower chamber is turned on primar-ily, as the lower chamber is a freezer (about0F) and the upper chamber is a refrigerator(4F). When the lower thermistor tempera-ture reaches to the freezer set temperatureof -4F, the lower evaporator fan motor stops,and logic reads the upper thermistor temper-ature. If it is higher than the refrigerator settemperature of -4F the main PCB will turn

on the upper evaporator fan and continue torun the compressor. Normally, this switchingbetween upper and lower evaporator fans re-peats several times before both temperaturesreach below the set temperature of -4F.Once the temperatures of both thermistorsreach below the set temperature of -4F, themain PCB shuts off the compressor and bothevaporator fans. Main PCB will turn off thecondenser fan 2 minutes later.

When the temperature of the thermistor ofupper chamber (refrigerator) reaches the

refrigerator set temperature of 4F, but thefreezer thermistor temperature remainsbelow the freezer set temperature 4F, themain PCB will turn on the upper evaporatorfan without turning the condenser fan or thecompressor. Basically, cooling logic is us-ing the cold air of the freezer section to coolthe refrigerator section during this period.If the thermistor temperature of the upperchamber (refrigerator) reaches the refrigera-tor set temperature -4F while the thermistortemperature of the lower chamber (freezer)is still lower than the freezer set temperature

4F (and this seems to happen regular basis),the main PCB will simply turns off the upperevaporator fan without ever turning the com-pressor on.

If the thermistor temperature of the lowerchamber (freezer) reaches to the freezer settemperature of 4F, the main PCB will turn onthe condenser fan, then the compressor andthe lower evaporator fan (10 seconds later)regardless to the temperature of the thermis-tor in the upper chamber. While the com-pressor is on, the above switching betweentwo evaporator fans takes place again.

In a rare case (for example, at the beginningof ice making or the ambient temperature isvery high) when the compressor is on andthe temperature of the lower thermistor iskept above the freezer set temperature -4Ffor extended period due to higher then nor-mal demand in the freezer section, the mainlogic monitors the temperature of the upper

chamber every 10 minutes or so to makesure the refrigerator temperature is withinthe range. If not, shut off the lower evapora-tor fan and turn on the upper evaporator fanuntil the temperature of the upper thermis-tor drops to the refrigerator set temperature-4F. Once the upper thermistor temperaturereaches that, the lower evaporator fan will beswitched on.

3) General Defrost Operation (AllModels)

The main PCB has a timer to monitor the ac-cumulated compressor operation time. Whenthis time reaches certain hours (for example 10hours), the main PCB will shut off the compres-sor the evaporator fans, reset the timer, and stopsampling the temperature. In 30 seconds, thedefrost heater will turn on and the condenser fanwill be turned off 2 minutes after the shut off ofthe compressor. The heater will be cut off whenthe defrost-sensing thermistor that is mountednear the top center of the evaporator pipe hasreached the preset temperature (for example8F). (If the defrost-sensing thermistor logic

fails, then the fuse will melt as any redundantlyprotected refrigeration system.) Five minutesafter termination of the heater, the main PCBstarts to sample the temperature and the samecooling function above 1) or 2) resumes.

OPERATING SYSTEMS (continued)


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REFRIGERATOR/FREEZER COMBO COOLING OPERATION

1. Power On: Compressor, condenser fan

and the freezer evaporator fan turns on. Therefrigerator evaporator fan remains off. Thecontroller continues to monitor the freezertemperature sensor (bottom thermistor) untilthe bottom sensor temperature (BT) reachesthe freezer set temperature (FST).

2, When the TT reaches FST-2.78C, thecontroller stops the freezer evaporator fanand measures the refrigerator temperature

- TT (top thermistor) against the refrigera-tor set temperature (RST). If the TT > RST,then the compressor and the condenser fanremain on while the top evaporator fan turnson.

3. The controller continues to monitor theTT until the TT < RST, then the refrigeratorevaporator fan motor stops. The controllerchecks the BT again, if the BT > FST, the

freezer evaporator fan turns on while thecompressor and condenser fan remain on.

Repeat step 3 until both TT and BT arebelow the set temperatures minus differen-tials (i.e. TT < RST and BT < FST). If bothTT and BT are the below set temperaturesminus differentials, then all the motors and

compressor stop. Once the compressor is

off, the controller continues to monitor the TTand BT.

The compressor fan, condenser and therelated evaporator fans turns on when theTT is higher than the RST or the BT is higherthan the FST.

If the TT > RST , but the BT < FST, then thecontroller turns on top evaporator fan only.The compressor, condenser fan and bottom

evaporator fan remain off.

The controller continues to monitor the TTand BT. If the BT > FST, then the compres-sor and condenser fan turn on, while the topevaporator fan continues to run. If the BT< FST and the TT > RST, then the freezerevaporator fan turns on (the compressor andcondenser fan remain off as long as BT

2008 double drawer refrigerator_freezer under counter products

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