Whirlpool Washer WTW6700TW1 Service Manual

The Whirlpool WTW6700TW1 is a top-loading automatic washer featuring a large capacity, multiple wash cycles, adaptive wash technology, and energy-efficient operation. This service manual provides detailed information for qualified technicians on safety procedures, technical specifications, component locations, diagnostics, troubleshooting, disassembly, repair, and reassembly. Below are key sections covering essential service information.

1. Safety Precautions 2. Model Specifications & Features 3. Component Identification & Access 4. Error Codes & Diagnostics 5. Disassembly Procedures 6. Testing Components 7. Troubleshooting Flowcharts 8. Wiring Diagrams 9. Exploded Views & Parts List 10. Reassembly & Verification 11. Performance Tests

Safety Precautions

Before servicing, disconnect power and water supply. Use proper tools and personal protective equipment (PPE).

Hazard	Precaution
Electrical Shock	Unplug washer or disconnect circuit breaker before accessing internal components.
Hot Surfaces	Allow machine to cool if recently operated. Components like heaters may be hot.
Moving Parts	Ensure washer is completely stopped. Do not bypass safety interlocks.
Water Pressure	Turn off water supply and release pressure before disconnecting hoses.
Chemical Exposure	Wear gloves and safety glasses when handling detergents or cleaning agents.
Sharp Edges	Use caution when handling sheet metal, brackets, and fasteners.
Heavy Lifting	Use proper lifting techniques or assistance for heavy components like the tub.
Gas Leaks (if applicable)	Check for gas leaks with soap solution after reconnecting any gas lines.

Model Specifications & Features

Model: WTW6700TW1
Type: Top-Load Automatic Washer
Capacity: 4.5 cu. ft.
Power Requirements: 120V AC, 60Hz, 15A dedicated circuit
Water Supply: Hot & Cold water connections, 20-120 psi
Control System: Electronic with adaptive wash technology
Cycles: Normal, Heavy Duty, Delicates, Quick Wash, Bulky Items, Rinse & Spin
Options: Extra Rinse, Pre-Wash, Deep Water Wash, Delay Start
Dimensions (HxWxD): 44" x 27" x 28"
Shipping Weight: Approx. 150 lbs

Component Identification & Access

Key serviceable components: Control Panel, User Interface, Lid Switch, Drive Motor, Transmission, Pump, Water Inlet Valves, Pressure Switch, Temperature Sensor, Suspension System, Tub, Agitator, Basket.

Control Panel Access: Remove rear panel screws, tilt panel back carefully to access wiring harnesses.
Cabinet Top Removal: Open lid, remove screws at rear corners, slide top forward and lift off.
Front Panel Removal: Remove top, then remove screws securing front panel to side panels.
Rear Panel Removal: Remove screws around perimeter to access motor, pump, and suspension.
Internal Component Access: Further disassembly required for tub, transmission, and drive motor.

WARNING! Label all wires and connectors during disassembly. Take photos for reference during reassembly.

Error Codes & Diagnostics

The control board displays error codes via flashing lights or specific patterns on the display. Use these codes to diagnose system failures.

Error Code	Description	Likely Cause
F1	Water Fill Timeout	Water inlet valves, pressure switch, water supply, hose kinks
F2	Water Drain Timeout	Drain pump, drain hose clog, drain hose installation
F3	Unbalanced Load	Uneven load, suspension springs, shock absorbers
F5	Motor Control Fault	Drive motor, motor control board, wiring harness
F7	Temperature Sensor Fault	Temperature sensor, wiring, control board
F8	Lid Switch Fault	Lid switch assembly, wiring, control board
LF	Motor Locked	Foreign object in pump/basket, seized motor, transmission issue
PF	Power Failure	Power interruption during cycle

Disassembly Procedures

Follow steps in order. Have containers for screws and small parts.

Power & Water Disconnect: Unplug washer. Turn off water supply valves. Disconnect hoses.
Cabinet Top Removal: Open lid. Remove two screws at rear corners. Slide top forward and lift off.
Control Panel: Remove screws securing panel. Disconnect wire harnesses carefully.
Front Panel: With top removed, remove screws along sides and bottom. Pull panel forward.
Lid Switch Assembly: Accessible after top removal. Disconnect wire plug, remove mounting screws.
Rear Panel: Remove all perimeter screws. Panel lifts off to reveal internal components.
Drive Belt & Pump: Remove belt guard. Note belt routing. Release tension to remove belt. Disconnect pump hoses and electrical connector.
Motor & Transmission: Support tub. Remove motor mounting bolts. Disconnect wiring. For transmission, further tub disassembly required.
Tub Removal (Major Repair): Remove suspension springs and shocks. Carefully lower and remove outer tub.

Testing Components

Use a multimeter (ohms, continuity) to test components. Disconnect power first.

Component	Test Procedure	Expected Result
Water Inlet Valves	Disconnect. Test terminals for continuity (Hot & Cold coils).	Resistance: 500-1500 ohms per coil. No continuity to ground.
Drain Pump	Disconnect. Test terminals for continuity.	Low resistance (20-200 ohms). Impeller should spin freely by hand.
Lid Switch	Actuate switch manually. Test for continuity change.	Continuity when lid closed (or plunger depressed). Open circuit when open.
Drive Motor	Disconnect. Test windings for continuity and resistance.	Specific resistance values per motor design. No shorts to case.
Temperature Sensor	Measure resistance across terminals at room temp.	Resistance changes with temperature. Refer to chart for specific values.
Pressure Switch	Apply suction to switch tube. Listen for clicks and test continuity change.	Continuity should change at specific pressure points (low/high).
Suspension Springs/Shocks	Inspect for damage, rust, broken hooks. Check shock damping.	Springs intact. Shocks provide resistance when compressed.

Troubleshooting Flowcharts

Use systematic approach to diagnose common symptoms.

Symptom: Washer won't start/power on.

Check power outlet with lamp. Verify circuit breaker.
Check power cord for damage. Test continuity.
Check lid switch operation and wiring.
Test control board for incoming power and output.

Symptom: No water fill.

Check water supply valves are on. Check for kinked hoses.
Listen for hum from inlet valves. If humming, check for clogged screens.
Test water inlet valves for continuity and operation.
Check pressure switch tube for leaks/blockage. Test pressure switch.
Check control board signals to valves.

Symptom: Will not drain/spin.

Check drain hose for proper installation (not too high) and clogs.
Listen for pump operation. If humming, check for obstruction in pump.
Test drain pump for continuity and free rotation.
Check lid switch (must engage for spin).
Check motor and motor control board.

Wiring Diagrams

Refer to separate fold-out schematic included with manual. Diagram key:

Line 1 (L1): Black wire - 120V Hot
Line 2 (L2/Neutral): White wire
Ground: Green or bare wire
Control Wires: Various colors for signals between UI, main control, sensors, and actuators.
Connectors: Noted as CN1, CN2, etc., on control board.

Tip: Always verify power is disconnected before testing circuits. Use diagram to trace voltage and signal paths.

Exploded Views & Parts List

Exploded views show relationship and order of all parts. Key assemblies:

Cabinet & Top Assembly: Includes cabinet, top, lid, hinges, base.
Control Panel Assembly: Includes user interface, main control board, overlay.
Drive & Suspension Assembly: Includes motor, transmission, belt, tub, basket, agitator, springs, shocks.
Water System Assembly: Includes inlet valve, hoses, dispenser, pump, drain hose.

Common Replacement Parts (Example Part Numbers):

Drive Motor: WPW10206370
Drain Pump: WPW10719472
Water Inlet Valve: WPW10106357
Lid Switch: WPW10001659
Main Control Board: WPW10315623
Suspension Spring: WPW10106358
Shock Absorber: WPW10106359

Note: Always verify part number using model and serial number before ordering.

Reassembly & Verification

Reverse disassembly steps. Pay special attention to:

Wire Harnesses: Ensure all connectors are fully seated and locked. Route wires away from moving parts and sharp edges.
Ground Connections: Reattach all ground wires securely to designated points on chassis.
Suspension System: Properly engage springs and shocks. Ensure tub is centered and moves freely.
Drive Belt: Install with correct routing and tension. Refer to routing diagram.
Seals & Gaskets: Inspect tub seal and door boot (if applicable) for damage. Replace if necessary.
Fasteners: Tighten all screws and bolts to specification. Do not overtighten.
Panels: Ensure all clips and tabs are engaged before securing with screws.

Final Check: Before applying power, manually rotate the basket to ensure no binding. Verify no tools or parts are left inside.

Performance Tests

After reassembly, run these tests to verify repair.

Power-Up Test: Plug in washer. Press power button. Control panel should illuminate. No error codes.
Water Fill Test: Select a cycle and start. Verify both hot and cold water fill (if selected). Check for leaks at connections and valves.
Agitation Test: During fill, agitator should oscillate. Listen for unusual noises from transmission or motor.
Drain & Spin Test: Initiate drain/spin. Verify pump operates and water drains completely. Basket should spin smoothly without excessive vibration.
Heater Test (if equipped): Run a hot wash cycle. Verify water heats to selected temperature.
Cycle Completion Test: Run a short cycle (e.g., Quick Wash) from start to finish, verifying all stages operate correctly and cycle ends normally.

Service Verification Complete: If all tests pass, the repair is successful. Provide operating instructions to the customer.