Whirlpool WTW6400S Technical Manual

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[Page 1] Whirlpool WTW6400S

L-80 JOB AID Part No. 8178582 AUTOMATIC WASHER WITH 6TH SENSE ™ TECHNOLOGY CONSUMER CARE TECHNICAL EDUCATION GROUP PRESENTS MODELS: WTW6400S & WTW6600S ...

[Page 2] Whirlpool WTW6400S

- ii - FORWARD This Whirlpool Job Aid, “Cabrio ™ Automatic Washer With 6th Sense ™ Technology” (Part No.8178582), provides the In-Home Service Professional with information on the installation, operation, and service of the Cabrio ™ Au...

[Page 3] Whirlpool WTW6400S

- iii - TABLE OF CONTENTS Page GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1 Washer Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ....

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- iv - — NOTES — ...

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1-1 GENERAL WASHER SAFETY Your safety and the safety of others are very important. We have provided many important safety messages in this manual and on your appliance. Always read and obey all safety messages. This is the safety alert symbol. This ...

[Page 6] Whirlpool WTW6400S

1-2 MODEL & SERIAL NUMBER DESIGNATIONS MODEL NUMBER SERIAL NUMBER SERIAL NUMBER C T 41 10200 MANUFACTURING SITE C = Clyde, OH YEAR OF PRODUCTION T = 2006 WEEK OF PRODUCTION 41 = 41st Week PRODUCT SEQUENCE NUMBER MODEL NUMB...

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1-3 MODEL & SERIAL NUMBER LABEL & TECH SHEET LOCATIONS The Model/Serial Number Label and Tech Sheet locations are shown below. Model/Serial Number Location Tech Sheet Location (Access Under Cabinet Top) ...

[Page 8] Whirlpool WTW6400S

1-4 SPECIFICATIONS MODEL NUMBERS WTW6400SW WTW6600SW, G, B PRIMARY FEATURES CAPACITY (IEC) 4.5 CU FT 4.5 CU FT USABLE CAPACITY 18 LBS (8.16 KG) 18 LBS (8.16 KG) MAX SPIN SPEED 950 1000 EXTERIOR LID FINISH PORCELAIN POWDER COAT LID...

[Page 9] Whirlpool WTW6400S

1-5 MODEL NUMBERS WTW6400SW WTW6600SW, G, B SECONDARY EOC OFF / SOFT / LOUD OFF / SOFT / LOUD TIME REMAINING YES YES TEMPS 5 - 4 ATC 5 - 4 ATC ATC TEMPS H/C , W/W, W/C, C/C H/C , W/W, W/C, C/C AUTO WATER LEVEL YES YES WATER LEVE...

[Page 10] Whirlpool WTW6400S

1-6 IMPELLER WASH PROGRAM / SELECTABILITY WTW 6400S D = Default Setting x = Selectable Setting o = Not Selectable ...

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1-7 WTW 6600S D = Default Setting x = Selectable Setting o = Not Selectable ...

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1-8 — NOTES — ...

[Page 13] Whirlpool WTW6400S

2-1 INSTALLATION INFORMATION INSTALLATION REQUIREMENTS TOOLS AND PARTS Gather the required tools and parts before starting installation. The parts supplied are in the washer basket. Tools needed for connecting the drain hose and water ...

[Page 14] Whirlpool WTW6400S

2-2 LOCATION REQUIREMENTS Selecting the proper location for your washer improves performance and minimizes noise and possible washer “walk.” The washer can be installed in a basement, laundry room, closet, or recessed area. See “Drain S...

[Page 15] Whirlpool WTW6400S

2-3 DRAIN SYSTEM The washer can be installed using the stand- pipe drain system (floor or wall), the laundry tub drain system, or the floor drain system. Select the drain hose installation method you need. See “Tools and Parts,” page 2-...

[Page 16] Whirlpool WTW6400S

2-4 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 can result in death, fire, or electrical shock. A 120 volt, 60 ...

[Page 17] Whirlpool WTW6400S

2-5 INSTALLATION INSTRUCTIONS WARNING Excessive Weight Hazard Use two or more people to move and install washer. Failure to do so can result in back or other injury. NOTE: To avoid floor damage, set the washer onto cardboard before moving across...

[Page 18] Whirlpool WTW6400S

2-6 REMOVE DRAIN HOSE FROM WASHER CABINET Pull the corrugated drain hose out of the washer by first grabbing the pull tie. Continue to pull the hose until the end emerges. Do not force excess drain hose back into the rear of the washer. L...

[Page 19] Whirlpool WTW6400S

2-7 CONNECT THE INLET HOSES TO THE WASHER 1. Attach the hot water hose to the inlet valve labeled hot. 2. Attaching one hose coupling first makes it easier to tighten the connection with pli - ers. 3. Screw on coupling by hand until i...

[Page 20] Whirlpool WTW6400S

2-8 LEVEL THE WASHER One washer foot has been installed at a dif- ferent height on the washer. The other three feet were preset at the factory. Properly level - ing your washer will minimize noise and vibra - tion. 1. Slide the washer to its final...

[Page 21] Whirlpool WTW6400S

2-9 COMPLETE INSTALLATION 1. Check the electrical requirements. Be sure that you have the correct electrical supply and the recommended grounding method. See “Electrical Requirements,” page 2-4. 2. Check that all parts are now inst...

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2-10 — NOTES — ...

[Page 23] Whirlpool WTW6400S

3-1 PRODUCT OPERATION THEORY OF OPERATION INTRODUCTION The Cabrio ™ Automatic Washer represents a new design that differs from the traditional top load machine. This washer operates without a transmission, motor coupler, belt, basket drive tu...

[Page 24] Whirlpool WTW6400S

3-2 Lid Lock Mechanism—Since this washer does not utilize a brake, a lid lock is used to prevent access during the spin cycles. During the drain and spin portions of the cycle, a lid lock mechanism will lock the lid. The lid locks are base...

[Page 25] Whirlpool WTW6400S

3-3 WASHER USE STARTING THE WASHER The following is a guide to starting the washer. Periodic references to other sections of this manual provide more detailed information. USING THE PROPER DETERGENT Use only High Efficiency (HE) deterge...

[Page 26] Whirlpool WTW6400S

3-4 3. Add color-safe bleach, (powdered or liq- uid) to this dispenser, if needed. Be sure to match powdered color-safe bleach with powdered detergent or match liquid color- safe bleach with liquid detergent. 4. Pour measured liquid chlorine bl...

[Page 27] Whirlpool WTW6400S

3-5 Do not overfill. The dispenser holds 3 oz. (94 mL), or a capful of fabric soft - ener. The fabric softener is dispensed in the final rinse. If Extra Rinse is selected, the fabric softener will be dispensed during the Extra Rins...

[Page 28] Whirlpool WTW6400S

3-6 CHANGING MODIFIERS AND OPTIONS AFTER PRESSING START You can change a Modifier or Option anytime before the selected Modifier or Option begins. You must: 1. Press PAUSE/CANCEL once. 2. Select the desired Modifiers and/or Op- tions. 3...

[Page 29] Whirlpool WTW6400S

3-7 PRESET CYCLE SETTINGS BULKY ITEMS Use this cycle to wash large items such as comforters, sleeping bags and blankets. This cycle starts with a soak to thoroughly saturate your large load. This is followed by medium wash action and...

[Page 30] Whirlpool WTW6400S

3-8 DELICATE/HANDWASH Use this cycle to wash lightly soiled gar- ments indicating “Machine Washable Silks” or “Gentle” cycle on the care label. This cycle uses intermittent low speed wash action and low-speed spin for the gentle...

[Page 31] Whirlpool WTW6400S

3-9 TEMPERATURE GUIDEFor most loads, use the time recommended in the preset cycle settings. For heavy soil and sturdy fabrics, press Soil Level to select more wash time, if needed. For light soil and delicate fabrics, press Soil Level to select le...

[Page 32] Whirlpool WTW6400S

3-10 DELAY WASH You can use the Delay Wash feature to delay the start of a wash cycle for up to 10 hours (depending on your model). 1. Load the washer and fill the dispensers. 2. Close the washer lid. 3. Press POWER. 4. Select the ...

[Page 33] Whirlpool WTW6400S

3-11 EXTRA RINSE An extra rinse can be used to aid in the removal of detergent or bleach residue from garments. This option provides an additional rinse with the same water temperature as the first rinse. This is the default rinse setting for th...

[Page 34] Whirlpool WTW6400S

3-12 WASHER CARE CLEANING YOUR WASHER WASHER MAINTENANCE PROCEDURE This washer has a special cycle that uses higher water volumes in combination with liquid chlorine bleach to thoroughly clean the inside of the washing machine. NOTES: Read ...

[Page 35] Whirlpool WTW6400S

3-13 To winterize washer: 1. Shut off both water faucets. 2. Disconnect and drain water inlet hoses. 3. Put 1 qt (1 L) of R.V.-type antifreeze in the basket. 4. Run washer on the Rinse & Spin setting for about 30 seconds to mix the anti...

[Page 36] Whirlpool WTW6400S

3-14 TROUBLESHOOTING WASHER AND COMPONENTS Washer displaying code messages “LF” (Washer is taking too long to fill) Check the following: Are the water inlet hoses kinked or clogged? Are the water inlet valve screens clear? Ar...

[Page 37] Whirlpool WTW6400S

3-15 Noisy, vibrating, off-balance Is the washer level? Does the washer rock when pushed against the corners? The washer must be level. The front and rear feet must be in firm contact with the floor. Check that the locknuts are tightened. S...

[Page 38] Whirlpool WTW6400S

3-16 Did you select Deep Clean option and use a handwashing detergent? Regular or handwashing detergents are not recommended for this washer. Use only High Efficiency (“HE”) detergent. • Dispenser operation Are the laundry additives in...

[Page 39] Whirlpool WTW6400S

3-17 Is the washer overloaded? Wash smaller loads. See “Starting The Washer,” page 3-3 for maximum load size. Is there oversudsing? Cancel the current cycle. Select DRAIN & SPIN to drain the load. Re-select your de - sired cycle a...

[Page 40] Whirlpool WTW6400S

3-18 Is there excessive sudsing? Always measure detergent. Follow deter- gent manufacturer’s directions. If you have very soft water, you might need to use less detergent. Was the cycle interrupted and then the Deep Clean option selected...

[Page 41] Whirlpool WTW6400S

3-19 Load is wrinkled, twisted or tangled Did you unload the washer promptly? Unload the washer as soon as it stops. Did you use the right cycle for the load being washed? To reduce wrinkling, tangling and twisting, select a cycle with low ...

[Page 42] Whirlpool WTW6400S

3-20 Garments damaged Were sharp items removed from pockets before washing? Empty pockets, zip zippers, snap or hook fasteners before washing to avoid snagging and tearing of load. Were strings and sashes tied to avoid tangling? ...

[Page 43] Whirlpool WTW6400S

4-1 COMPONENT ACCESS COMPONENT LOCATIONS This section instructs you on how to service each component inside the Cabrio ™ Automatic Washer With 6th Sense ™ Technology. The components and their locations are shown below. CONSOLE &...

[Page 44] Whirlpool WTW6400S

4-2 REMOVING THE ENCODER AND THE USER INTERFACE BOARD Electrical Shock Hazard Disconnect power before servicing. Replace all parts and panels before operating. Failure to do so can result in death or electrical shock. 1. Unplug washer or disc...

[Page 45] Whirlpool WTW6400S

4-3 User Interface Board 8. To remove the encoder, lift the locking tab and turn the encoder to the left (coun - terclockwise) as far as it will go, then lift the encoder straight up so that the shaft slides out of the rubber console seal, and...

[Page 46] Whirlpool WTW6400S

4-4 REMOVING THE WATER INLET/ DISPENSER VALVE ASSEMBLY, POWER SUPPLY CORD, AND MACHINE/MOTOR CONTROL & PRESSURE TRANSDUCER Electrical Shock Hazard Disconnect power before servicing. Replace all parts and panels before operating. Failure to d...

[Page 47] Whirlpool WTW6400S

4-5 g) Lower the cabinet top. h) Slide the power supply cord strain relief out of the housing and move it away from the valve assembly. i) Remove the two hex-head screws from the water inlet/dispenser valve assem- bly, and remove t...

[Page 48] Whirlpool WTW6400S

4-6 REMOVING A DISPENSER, THE FRESH FILL INLET VALVE, AND THE LID LOCK Electrical Shock Hazard Disconnect power before servicing. Replace all parts and panels before operating. Failure to do so can result in death or electrical shock. 1. Unpl...

[Page 49] Whirlpool WTW6400S

4-7 Continued on the next page. c) Raise the cabinet top (see step 3e on page 4-4 for the procedure). d) Loosen the clamp and disconnect the end of the dispenser hose from its wa- ter inlet/dispenser valve connector. NOTE: The dispenser hoses ...

[Page 50] Whirlpool WTW6400S

4-8 e) Disconnect the lid lock cable connector from the machine/motor control con - nector at P12. f) Pull the end of the lid lock cable from the control, and remove the lid lock and cable assembly from the washer. Lid Lock Connector P12 ...

[Page 51] Whirlpool WTW6400S

4-9 Electrical Shock Hazard Disconnect power before servicing. Replace all parts and panels before operating. Failure to do so can result in death or electrical shock. WARNING REMOVING THE LID AND A HINGE 1. Unplug washer or disconnect power...

[Page 52] Whirlpool WTW6400S

4-10 REMOVING THE BASKET, BASKET HUB, & LlNT FILTER Electrical Shock Hazard Disconnect power before servicing. Replace all parts and panels before operating. Failure to do so can result in death or electrical shock. WARNING Ring Tabs R...

[Page 53] Whirlpool WTW6400S

4-11 5. To remove the lint filter, remove the two screws, and lift the filter from the tub. Lint Filter Screws NOTE: Clean the lint from the vanes in the filter and reinstall it in the washer. Lint Filter Vanes 4. To remove the bask...

[Page 54] Whirlpool WTW6400S

4-12 REMOVING THE DRAIN AND RECIRCULATION PUMPS Electrical Shock Hazard Disconnect power before servicing. Replace all parts and panels before operating. Failure to do so can result in death or electrical shock. WARNING 1. Unplug washer or d...

[Page 55] Whirlpool WTW6400S

4-13 7. To remove the recirculation pump: a) Loosen the clamps and pull the recir - culation hoses off the pump. Note that there is a tab on the outlet connector that fits into a slot in the hose. b) Remove the three 5/16˝ hex-head screws f...

[Page 56] Whirlpool WTW6400S

4-14 REMOVING THE DRIVE MOTOR & ROTOR POSITION SENSOR Electrical Shock Hazard Disconnect power before servicing. Replace all parts and panels before operating. Failure to do so can result in death or electrical shock. WARNING 1. Unplug w...

[Page 57] Whirlpool WTW6400S

4-15 10. Disconnect the power connector from the stator terminals. 11. Disconnect the wire standoff and edge connector from the rotor position sensor cover. Power Connector 12. Pry up on the two locking tabs and pull the rotor pos...

[Page 58] Whirlpool WTW6400S

4-16 REMOVING THE TUB Electrical Shock Hazard Disconnect power before servicing. Replace all parts and panels before operating. Failure to do so can result in death or electrical shock. WARNING 1. Unplug washer or disconnect power. 2. Turn ...

[Page 59] Whirlpool WTW6400S

4-17 6. At the right rear corner of the washer, reach down and pull the pressure trans - ducer tube off the tank. 7. Lower (do not latch) the top of the cabi - net. 8. Carefully lay the washer on its front pan- el. Place padding on the ...

[Page 60] Whirlpool WTW6400S

4-18 ACCESSING THE PRESSURE TRANSDUCER TUBING, RECIRCULATION TUBE, AND DRAIN PUMP HARNESS Electrical Shock Hazard Disconnect power before servicing. Replace all parts and panels before operating. Failure to do so can result in death or electric...

[Page 61] Whirlpool WTW6400S

5-1 COMPONENT TESTING Before testing any of the components, perform the following checks: The most common cause for control failure is corrosion on connectors. Therefore, dis - connecting and reconnecting wires will be necessary throughout test pr...

[Page 62] Whirlpool WTW6400S

5-2 DRAIN PUMP Refer to page 4-12 for the procedure for ac- cessing the drain pump. 1. Unplug washer or disconnect power. 2. Disconnect the wire connector from the drain pump terminals. 3. Set the ohmmeter to the R x 1 scale. 4. Touch the ...

[Page 63] Whirlpool WTW6400S

5-3 Refer to page 4-6 for the procedure for ac- cessing the lid lock. 1. Perform the Manual: Door Switch and Manual: Door Lid Lock tests on page 6-7. 2. Remove the console to access the ma- chine/motor control ass...

[Page 64] Whirlpool WTW6400S

5-4 DRIVE MOTOR STATOR Refer to page 4-14 for the procedure for ac- cessing the drive motor. 1. Unplug washer or disconnect power. 2. Disconnect the wire connector from the drive motor terminals. 3. Set the ohmmeter to the R x 1 scale. 4. T...

[Page 65] Whirlpool WTW6400S

6-1 DIAGNOSTICS & TROUBLESHOOTING DISPLAY FAULT / ERROR CODES DISPLAY (Saved Code) EXPLANATION AND RECOMMENDED PROCEDURE (F30) Long Fill LF flashes when the water level does not change for a period of time after the valves are turned on OR water...

[Page 66] Whirlpool WTW6400S

6-2 (F81) Open/Close Door Lid Lid flashes when the following conditions occur: • User presses START with lid open. • User presses START after 2 consecutive machine cycles without opening lid. • The machine/motor control cannot detect...

[Page 67] Whirlpool WTW6400S

6-3 If drain pump turns on when there is no water in tub, DISPLAY (Saved Code) EXPLANATION AND RECOMMENDED PROCEDURE (F40) ATC Thermistor Open/Short F then 40 flashes when the ATC Thermistor is detected to be open or shorted. See TEST #5. (F41) Moto...

[Page 68] Whirlpool WTW6400S

6-4 DIAGNOSTIC GUIDE Before servicing, check the following: Make sure there is power at the wall outlet. Has a household fuse blown or circuit break- er tripped? Time delay fuse? Are both hot and cold water faucets open and water supply hoses unobst...

[Page 69] Whirlpool WTW6400S

6-5 Two-Digit Indicator Machine Function Recommended Procedure C0 Slow spin to 23 rpm. If no spin go to Manual: Motor, Spin. C1 Warm water fills through Fresh and Detergent valves, then Fresh valve until basket floats (disengages); then washer conti...

[Page 70] Whirlpool WTW6400S

6-6 2. If done successfully, a single beep oc- curs and the two-digit display shows one of the following console ID#s: 06, 08, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 44, 45, 46, 47, 48, 49, 60, 61, 62 for 3 seconds, then displays 00 and...

[Page 71] Whirlpool WTW6400S

6-7 Press and release: 2nd RINSE or EXTRA RINSE Door locks, lid lock indicator turns on. Repeat Door unlocks, lid lock indicator turns off. • • Manual: Door Switch Opening the door should cause the Clothes Clean or Done status indic...

[Page 72] Whirlpool WTW6400S

6-8 5. Press buttons to verify function. Indica- tors will toggle on (or off) and beep tone will sound when buttons are pressed. NOTE: Pressing SOIL LEVEL, SPIN SPEED, WATER LEVEL or LOAD SIZE, and WASH/RINSE TEMP will cause all ...

[Page 73] Whirlpool WTW6400S

6-9 TROUBLESHOOTING GUIDE PROBLEM POSSIBLE CAUSE/TEST NOTE: Possible Cause/Test must be performed in the sequence shown for each problem. WON’T POWER UP (No response when buttons are pressed.) 1. Supply connections. See TEST #1. 2. Unplug washer ...

[Page 74] Whirlpool WTW6400S

6-10 TEST #2 Log Valve This test checks the electrical connections to the valves, and the valves themselves. 1. Check the relays and electrical connec- tions to the valves by performing the steps under Diagnostic: Manual, then Manual: Water Va...

[Page 75] Whirlpool WTW6400S

6-11 9. With an ohmmeter, check for continuity between all pins on the P10 machine/mo - tor control connector and the motor rotor position sensor (RPS) connector. See Figures 2 and 4, pages 6-13 and 6-16. If there is continuity, go to s...

[Page 76] Whirlpool WTW6400S

6-12 TEST #5 Automatic Temperature Control This test checks the water inlet valves, the temperature sensor, and the machine/motor control. 1. Check the valves by performing Test #2, before continuing to the next step. 2. Ensure prop...

[Page 77] Whirlpool WTW6400S

6-13 Motor Connecto r Stator Motor Rotor Position Sensor (RPS) Motor cover removed to access RPS and motor connector. Figure 2 Drain Pump Recirculation Pump Motor Bolt Motor Rotor Position Sensor (RPS) or Motor Connection Counterweight Motor Cover D...

[Page 78] Whirlpool WTW6400S

6-14 8. Select POWER • wash cycle NORMAL • START. 9. Verify that the tub fills to the top of the impeller plate (impeller models), or to a level above the agitator vanes (agitator models), but much lower than the ...

[Page 79] Whirlpool WTW6400S

6-15 4. Check the lid lock motor winding and switches by removing P12 from the ma - chine/motor control and checking the resistance values shown in the Lid Lock Resistance table below: LID LOCK RESISTANCE Component Resistance Unlocked...

[Page 80] Whirlpool WTW6400S

6-16 RED T U P N I R E W O P BLU-YEL-RD RED BLK FLASH CNTRL WIDE N W O R B E U L B T E K C A J Y A R G K C ALB ABS 8565548 BLACK D E R D R O C R E W O P K C A L B T I H W - D R T L V - N R O - D R - T L V - T I H W Valve Thermistor P9P8P7P6 P1...

[Page 81] Whirlpool WTW6400S

7-1 WIRING DIAGRAM 1 3 1 3 4 6 7 9 1 3 1 3 1 3 1 3 4 6 7 9 1 3 1 3 0 1 2 1 1 3 Y Y R R V W V W V W V W 1 3 1 2 3 4 C B A 7 6 5 4 3 R B 2 1 R B R B R B R B R B R B 8 7 6 5 4 U B 3 2 U B U B U B U B U B U B 1 U B 7 6 5 4 3 2 1 R O T O M R O T O R N O ...

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7-2 — NOTES — ...

[Page 83] Whirlpool WTW6400S

PRODUCT SPECIFICATIONS AND WARRANTY INFORMATION SOURCES IN THE UNITED STATES: FOR PRODUCT SPECIFICATIONS AND WARANTY INFORMATION CALL: FOR TECHNICAL ASSISTANCE WHILE AT THE CUSTOMER’S HOME CALL: THE TECHNICAL ASSISTANCE LINE: 1-800-253-2870 HAVE ...

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