W10135901
Whirlpool W10135901, W10135900, W10135899, 2304143, 2304093 Service Pointer
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No r t h Am e r i c A N Ap p l i A N c e Gr o u p
Service Pointer
FOR IMMEDIATE ATTENTION OF YOUR SERVICE DEPARTMENT
8178769C
March 2009
Top Mount and SXS Refrigerators
Warm Temperatures Due To Incomplete Defrost
MODEL NUMBERS: SEE ATTACHED LIST
Customer’s Concern:
Ice may build up on evaporator over a period of time due to incomplete defrost cycles resulting in warm temperatures.
Cause:
ADC’s, adaptive defrost controls, initialize a defrost cycle based on several factors. These factors include the length of time
between previous defrost cycles and the length of the time the defrost heater is energized. It may be possible that abnormal
ambient temperature, humidity, interior heat load, and customer usage can result in the ADC not initiating a defrost cycle before
the frost accumulation becomes excessive. This may result in a small amount of frost or ice left on the evaporator coil the next
defrost cycle. Once this occurs, the accumulation of ice will gradually build over a period of time until the air ow through the
evaporator is restricted resulting in warmer temperatures.
Correction:
Eliminate the ADC routine built into the ADC control by cutting out a resistor on the board.
Procedure:
There are two types of ADC controls: ADC2000 and ADCWFI
See Table1
Type Part Numbers
ADC 2000
(CONTROL-ELEK,ADC2000)
ADCWFI (water lter indicator)
(PCA & BRKT ASSY-ADC/FD/WFI)
2303824, 2303825, 2303826, 2302564,
2304099
2303821, 2303822, 2303823, 2304069,
2304093, 2304143, W10135899, W10135900,
W10135901
Table 1
Instructions to De-activate ADC Routine
This instruction sheet covers ADC2000 and ADCWFI control boards only;
WARNING
Accessing the ADC Board
The following instructions apply to side-by-side products:
1) Unplug refrigerator or disconnect power.
2) If applicable, remove knobs from the freezer and refrigerator control box located at the top of the
refrigeration compartment.
3) Remove control escutcheon
4) Remove (4) screws used to secure control box
5) Locate and identify the ADC board (ADC2000 or ADCWFI) in rear right corner of
control box. The part number for the PCA (printed circuit assembly) + bracket is located on the side
of the relay on the top side of the board.
6) Remove all connectors from the ADC board.
7) Remove the (2) screws securing the ADC board and remove from control enclosure
8) Remove the resistor as indicated in the following sections
9) Reinstall all components and wiring harnesses
10) Replace all parts and panels
11) Plug in refrigerator or reconnect power.
The following instructions apply to top freezer products:
1) Disconnect power cord.
2) Remove control cover from refrigerator compartment ceiling.
a. Remove (2) screws at front of control cover.
b. Lift rear side of the control cover to disengage locating features (hooks).
3) Locate and identify the ADC board (ADC 2000 or ADCWFI) in the center of the
control box. The part number for the PCA (printed circuit assembly) + bracket is located on the side
of the relay on the top side of the board.
4) Remove all connectors from the ADC board.
5) Remove the (2) screws securing the ADC board and remove from control enclosure.
6) Remove the resistor as indicated in the following sections.
7) Reinstall all components and wiring harnesses
8) Replace all parts and panels
9) Plug in refrigerator or reconnect power.
Section One: Deactivating ADC2000 Control Routine
ADC 2000
ADC 2000
R10 Removed
Location of R10
Figure 1 Figure 1A
1) Locate resistor number 10 (R10) on top side of circuit board (gure. 1)
2) Using wire cutters clip both legs (wire) of the resistor as close
to the board surface as possible.
3) With resistor removed, no leg (wire) of the resistor should be able to
make contact with any other component. The legs (wire) should be
removed as close to the circuit board as possible (gure. 1A)
4) The ADC routine is now deactivated.
5) Reinstall all components and wiring harnesses
6) Replace all parts and panels
7) Plug in refrigerator or reconnect power.
Section Two - Deactivating ADCWFI Control Routine
ADCWFI
ADCWFI
R15 Removed
Location of R15
Figure 2
1) Locate resistor number 15 (R15) on top side of circuit board (gure. 2)
2) Using wire cutters clip both legs (wire) of the resistor as close to the board
surface as possible.
3) With resistor removed, no leg (wire) of the resistor should be able to make
contact with any other component. The legs(wire) should be removed as
close to the circuit board as possible (gure 2A)
4) The ADC routine is now deactivated.
5) Reinstall all components and wiring harnesses
6) Replace all parts and panels
7) Plug in refrigerator or reconnect power.
Figure 2A
Bulletin de service
GROUPE NORD-AMÉRICAIN DES APPAREILS MÉNAGERS
POUR COMMUNICATION IMMÉDIATE AU DÉPARTEMENT DE SERVICE
8178769C
Mars 2009
Réfrigérateurs congélateur en haut et SXS
Température élevée due au dégivrage incomplet
MODÈLES: VOIR LA LISTE EN ANNEXE
Plainte du client:
Accumulation de givre après un certain temps sur l'évaporateur due à un dégivrage incomplet.
Cause:
Les contrôles de dégivrage ADC, (adaptive defrost controls), initient les cycles de dégivrage d'après plusieurs facteurs. Ces
facteurs sont entre autre le temps écoulé entre les dégivrages et le temps que l'élément de dégivrage est alimenté. Il peut
être possible qu'à cause d'une température anormalement haute, humidité excessive, ouvertures fréquentes de la porte qu'un
cycle de dégivrage peut commencer même avant qu'il y ait accumulation de givre. Ceci peut faire en sorte qu'il reste un certain
montant de givre sur l'évaporateur après le cycle de dégivrage. Si ceci se produit, le givre continuera de s'accumuler et la
circulation de l'air sera diminuée sur l'évaporateur causant des températures plus élevées.
Correction:
Eliminez la routine du ADC en coupant une résistance sur le contrôle électronique.
Procédure:
Il y a deux types de contrôles ADC: ADC2000 et ADCWFI
Voir Tableau1
Type Numéros de pièces
ADC 2000
(CONTRÔLE-ELEK,ADC2000)
ADCWFI (avec indicateur de ltre)
(PCA & BRKT ASSY-ADC/FD/WFI)
2303824, 2303825, 2303826, 2302564,
2304099
2303821, 2303822, 2303823, 2304069,
2304093, 2304143, W10135899, W10135900,
W10135901
Table 1
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