WFMC Washer Training Program WFMC WASHER TRAINING MANUAL 1st Edition/Revision 6 (2/2/04)
WFMC Washer Training Program • • • • • • • • • Features and Benefits Product Description Warranty Installation Operation Disassembly Reassembly Wiring Diagram Service Tips 1st Edition/Revision 6 (2/2/04)
Features and Benefits • • • • • • • • • • • • True American sized drum & tub Full sized opening (easier loading and unloading) Tilted tub to facilitate door seal draining Very energy efficient - Energy Star rated Stainless steel drum - won’t rust & is gentle to clothes Uses little water 3-Tier water fill for fast & equal water fill 180° door opening Up to 5 rinses Suds sensing - rinses out suds leaving no soap film Unbalanced load sensor - adjusts spin to balance load UL listed (U.S.
Extra Features and Benefits -- WFMC6400 • • • Continuous cycle notification - digital display Electronic control Accurate water level control independent of water pressure • Digital clock (am/pm format) • Real time cycle finish (displays actual time of day cycle stops) • • • Real time delay (enter actual time of day for wash to end) Reduced ironing Interactive language display - choose desired language (English, French, Spanish) • Continuous suds sensing • Child lockout 1st Edition/Revision 6 (2/2/04)
Product Description • Electronic controls • Guaranteed temperatures • Large capacity & door opening • UL listed (U.S.
Warranty Bosch Washers Limited Lifetime Warranty Statement of Limited Warranty The warranties provided by BSH Home Appliances ("Bosch") in this Statement of Warranties apply only to Bosch clothes washers sold to the first using purchaser by Bosch or its authorized dealers, retailers or service centers in the United States or Canada. The Warranties provided herein are not transferable, and take place from date of installation or ten business days after delivery date, whichever comes first.
Warranty -- Serial # Label The serial # label, located on the front of the washer next to the door hinge, shows necessary warranty information. Serial # label • Model # - “WFMC6400UC/01”. • Serial # - “FD 8308”. To find when the product type was built, add 20 to the 1st two digits to get the year (83 + 20 = 103 product type was built in 2003). The last two digits show the month (08 = August). Factory serial # - Can convert factory serial # to FD # for warranty use.
Installation -- Reprint of Installation Instructions (1) NOTE: Be sure to follow all national & local codes.
Installation -- Reprint of Installation Instructions (2) HINT: To quickly remove shipping (transport) bolts, use a 13mm socket wrench. HINT: To avoid damaging washer, don’t move it while the feet (leveling legs) are extended.
Installation -- Reprint of Installation Instructions (3) HINT: Cold & hot water connections are clearly marked on the rear of the washers. HINT: To eliminate possibility of leaking, don’t overtighten fittings. Teflon tape can also be used on all threads. HINT: Be sure to remove the transport (shipping) bolts & keep them near the washer (for future shipment).
Operation -- Fascia Panels WFMC3200UC WFMC6400UC 1st Edition/Revision 6 (2/2/04)
Operation -- Controls WFMC3200UC Special Wash Buttons Digital Display Cycle Selector Knob Both have Regular/ Cotton, Permanent Press, Delicates, Hand Wash, Temperature Boost, Rinse Plus & Bleach settings.
Operation -- Sensors (1) 1A. Load Sensor (WFMC3200UC) At a predefined points during the initial fill, the washer determines if it needs more water using a pressure switch. This is due to differences in the absorption of the laundry and the size of the loads. 1B. Dynamic Load Sensor (WFMC6400UC) During the entire fill the washer continually adjusts for the size of the load and determines if more water is needed using an analog pressure switch and a flow meter. 2.
Operation -- Sensors (2) 1A/1B. Load & Dynamic Load Sensors Mechanical Pressure Switch - (WFMC3200UC & WFMC6400 UC) measures the water level after the first fill. If the water level is high (like for smaller loads), the pressure increases and the pressure switch does not provide more water.
Operation -- Sensors (3) 1A/1B. Flow Meter Exact monitoring of water inflow. Ensures exact control of water inlet valves so that there is always the right amount of water for wash and rinse cycles. Together with the pressure switch, there is a continuous adjustment of wash time, water and energy in relation to the load size. The flow meter works independently of water pressure.
Operation -- Sensors (4) 2. Digital Temperature Sensor Both models are equipped with an Electric Heater and Temperature Sensor (NTC) to deliver guaranteed wash temperatures. NOTE: Compare with competition washers which only have heaters in top of the line models.
Operation -- Sensors (5) 3A/3B.
Operation -- Sensors (6) 4.
Operation -- Sensors (7) Spin speed [rpm] 4. Unbalanced Load Sensor 2-step detection I II III 1200 1000 800 600 400 200 max. 15 trials 0 load distribution good uneven bad none unbalance small medium big dangerous Spin speed (rpm) 1200 (max.
Operation -- Cleaning Drain Pump Trap Unlike WFK, WFL & WFR washers, drain pumps are maintenance-free. So, larger objects such as coins and paper clips are no longer collected in the drain pump trap. The drain pump trap is only meant to be cleared by servicers. HINT: To remove the drain pump access cover, insert a pointed object (or tool) into the hole, push in to release the latch and rotate the cover clockwise. Current production pumps are beige color – earlier pumps were black.
Operation – Preventing Water Collecting in Door Seals Unlike WFK, WFL & WFR washers, WFMC washers have tilted tubs and flow through tub paddles to help prevent water collecting in door seals and to enhance wash water flowing through clothes. Paddles direct water toward front of washer – water drains into paddles from outside of inner drum, flows toward front of paddles and exits holes in front of paddles onto clothing in front of washer.
Disassembly – Fascia (Control) Panel (1) T-20 screws To remove fascia panel to access control module & dispenser, remove (4) T-20 Torx front/side screws and lift panel up. Caps over screws can be removed using fingernails or a sharp knife – take care not to scratch fascia panel or caps. When reassembling panels, tuck rear tabs under top st panel 1 . Knobs are permanently attached to panels and cannot be removed.
Disassembly – Fascia (Control) Panel (2) Control modules can be readily removed from fascia panels, but there’s a knack to it – must use the procedure below exactly as shown. Start from left side Pry outer & inner tabs together L – R Pry out (3) inner tabs + all outer tabs HINT: Don’t remove the wire holders – clip off wire ties instead. Carry extra wire ties to reattach wire harnesses. HINT: Don’t force modules out from fascia panels to avoid breaking plastic parts.
Disassembly – Top & Rear Panels (1) T-20 screws Removing top panel screws Removing top panel Top panel removed Rear panel removed To remove rear panel to access drive motor and rear of drum, remove (18) T-20 screws. There’s no need to remove the top rear panel (with “H” & “C” stampings). T-20 screws Rear panel To remove top panel (for easier parts access), remove (3) T-20 screws and slide panel to rear of washer.
Disassembly – Drum/Front Panel (1) Remove hinge cover screws Remove door latch screws Remove hinge screws Carefully remove front shield Remove door seal spring Removing front shield 1st Edition/Revision 6 (2/2/04)
Disassembly – Drum/Front Panel (2) T-20 screws Front panel tab T-20 screws Remove top front panel screws Remove bottom front panel screws Note front panel mounting tabs Removing front panel at this point will make removing front counterweights easier. HINT: HINT: Front panels are mounted using six (6) plastic tabs – three (3) on each side. Lift front panels up to remove them. When reassembling front panels, carefully align tabs and don’t use excessive force to avoid breaking tabs.
Disassembly – Drum/Front Panel (3) Remove door latch Door latch manual release Top counterweight must be removed 13mm screws Remove counterweight screws Slide out counterweight Note counterweight bushing slots in tub 1st Edition/Revision 6 (2/2/04)
Disassembly – Drum/Front Panel (4) 13mm screws Remove front counterweight screws Remove door seal 13mm screws Removing counterweight screws Note counterweight screw bushings in tub Disconnect main water inlet hose Disconnecting main water inlet hose 1st Edition/Revision 6 (2/2/04)
Disassembly – Drum/Front Panel (5) Disconnect dispenser hoses Remove dispenser screws Disconnect water inlet valve hoses Remove dispenser Disconnecting hot water valve hose Disconnect drain hose 1st Edition/Revision 6 (2/2/04)
Disassembly – Drum/Front Panel (6) Disconnect sump hose clamp Remove drain pump Disconnect sump hose Disconnect sump hose clamp Remove sump NOTE: Old style drain pump shown (not used in production) 1st Edition/Revision 6 (2/2/04)
Disassembly – Drum/Front Panel (7) NOTE: Old style dampers shown (not used in production) Disconnect hoses Disconnect dampers Disconnect motor wires Remove drum drive motor Remove belt from tub Showing drum drive motor mounts 10mm bolts NOTE: Old style dampers shown (not used in production) 1st Edition/Revision 6 (2/2/04)
Disassembly – Drum/Front Panel (8) 13mm bolt Remove pulley wheel Remove tub rear spring Tub ground wire & washer Remove tub washer Remove tub ground wire 1st Edition/Revision 6 (2/2/04)
Disassembly – Drum/Front Panel (9) Disconnect locking heater wires Remove heater Disconnect NTC wires 10mm bolt Unscrew motor control screws Disconnect motor control wire harnesses Remove motor control 1st Edition/Revision 6 (2/2/04)
Disassembly -- Drum, Outer Drum (Tub) & Dampers (1) Outer drum (tub) The tub consists of two durable Polinox plastic shells which are screwed to each other. To remove outer tub: 1. Disconnect wire harnesses (as needed) – wire ties can be cut off, but clips shouldn’t be cut. 2. Remove front panel, rear panel, fascia panel (with detergent dispenser) and top panel. 3. Remove door seal, top counterweight and both side counterweights. 4. Disconnect dampers from tub and slip belt off of tub. 5.
Disassembly -- Drum, Outer Drum (Tub) & Dampers (2) Rear drum bearings are factory press fit into rear outer tubs and cannot be removed or serviced.
Disassembly – Drum Drive Motor To remove drum drive motors: • Remove rear panel • Remove rear tub spring Drum drive motor • Remove drum belt • Disconnect wire harnesses • Remove two motor bolts, then pull motor out toward rear of washer 10mm bolts Rear tub spring WARNING: The drum drive motor & tub are grounded through the motor control. Since the tub is plastic and the motor is isolated from the frame, Its critical the ground leads from the tub, drive motor & motor control are connected properly.
Disassembly – Drain Pump To remove drain pumps: • Remove front panel • Loosen and remove hoses • Disconnect wire harness • Carefully slide pump toward rear of washer, then lift it out of washer (taking care to not damage the four rubber feet). Drain pump Drain pump Current production pumps are beige color – earlier pumps were black. Note four mounting feet HINT: Drain pumps are mounted on four rubber feet to dampen vibration & noise.
Disassembly – Water Valves & RFI Filter HINT: Water valves are bent and snapped into place. When removing valves, take care not to break off plastic pieces.
WFMC3200 Wiring Diagram 10ºC (50ºF): 36 – 44kW 20ºC (68ºF): 22.8 – 27.4kW 30ºC (86ºF): 14.8 – 17.5kW 40ºC (104ºF): 9.8 – 11.5kW 50ºC (122ºF): 6.6 – 7.7kW 60ºC (140ºF): 4.6 – 5.3kW 66ºC (151ºF): 3.73 – 4.29kW 73ºC (163ºF): 2.94 – 3.36kW 86ºC (187ºF): 1.93 – 2.
WFMC6400 Wiring Diagram 10ºC (50ºF): 36 – 44kW 20ºC (68ºF): 22.8 – 27.4kW 30ºC (86ºF): 14.8 – 17.5kW 40ºC (104ºF): 9.8 – 11.5kW 50ºC (122ºF): 6.6 – 7.7kW 60ºC (140ºF): 4.6 – 5.3kW 66ºC (151ºF): 3.73 – 4.29kW 73ºC (163ºF): 2.94 – 3.36kW 86ºC (187ºF): 1.93 – 2.
WFMC Service Tips -- Ratings • Rated 120VAC, 15A, 60 Hz, 1350W (uses 11A max.). • Heater rated 1000W. • Hot & cold water inputs: 3/4” NPT, 14.5 – 145 psi, 2.2 gal. (8 l)/minute – 5.2 gal (19.8 l)/minute. • Three concrete vibration dampeners, one top & two front. • Uses NEMA 5-15P 120V, 15A, 3-wire plug. • Spin speeds: 400-1000 RPM (WFMC3200) or 4001200 RPM (WFMC6400). • Uses Polinox outer drum - quieter & dent resistant compared to ss. • UL listed (U.S. & Canada).
WFMC Service Tips – Infrequently Asked Questions (1) • Length of power cord – 6’ (72”) • Net weight – 216 lbs. (98 kg.) • Drum capacity / volume – 3.1 ft3 (88 l) / 17.6 lbs. (8 kg.) for regular cotton • Pumping height (max.) – 8’ (2.4 m) • Dimensions – 36.9” H x 27” W x 30.2” D (93.7 cm x 68.7 cm x 76.7 cm) • Energy (appendix J rating) – EF > 4.0; uses < 284 kwh/yr. • Water usage – 8.5 gal./ft3 (WFMC 3200); 7.5 gal./ft3 (WFMC 6400) • Noise level (wash) – 60 dB • Noise level (max.
WFMC Service Tips – Infrequently Asked Questions (2) • Wash temperatures: 155ºF Sanitary, 150ºF Temp. boost, 120ºF – 125ºF Hot, 90ºF – 95ºF Warm, 60ºF – 70ºF Cold. • Door opening – 16” (41 cm) • NTC (R1) ratings: • 36 – 44 kΩ @ 10ºC (50ºF) • 22.8 – 27.4 kΩ @ 20ºC (68ºF) • 14.8 – 17.5 kΩ @ 30ºC (86ºF) • 9.8 – 11.5 kΩ @ 40ºC (104ºF) • 6.6 – 7.7 kΩ @ 50ºC (122ºF) • 4.6 – 5.3 kΩ @ 60ºC (140ºF) • 3.73 – 4.29 kΩ @ 66ºC (151ºF) • 2.94 – 3.36 kΩ @ 73ºC (163ºF) • 1.93 – 2.
WFMC Service Tips -- Drum Drive Motor Motor control Drum motor resistances: Unlike previous washers, drum drive motors are controlled by separate motor controls mounted on the base near the motors (in the right rear of washers). These controls provide motor power & speed control. WARNING: The drum drive motor & tub are grounded through the motor control.
WFMC Service Tips -- Drain Pump Drain pumps reliably pump water out from washer tubs through the drain reservoir and drain hose. Unlike earlier washers, these pumps are maintenance free -- access to remove debris is only meant for servicers. NOTE: Drain pump motor resistance ranges from 140 – 200Ω. HINT: To remove the drain pump access cover, insert a pointed object (or tool) into the hole, push in to release the latch and rotate the cover clockwise.
WFMC Service Tips -- NTC & Heater NTC HINT: Heater can be removed from the back of the tub – remove rear panel for access. 10ºC (50ºF): 36 – 44kW 20ºC (68ºF): 22.8 – 27.4kW 30ºC (86ºF): 14.8 – 17.5kW 40ºC (104ºF): 9.8 – 11.5kW 50ºC (122ºF): 6.6 – 7.7kW 60ºC (140ºF): 4.6 – 5.3kW 66ºC (151ºF): 3.73 – 4.29kW 73ºC (163ºF): 2.94 – 3.36kW 86ºC (187ºF): 1.93 – 2.19kW HINT: NTC connector is latched – carefully pry latch with small blade screwdriver to remove it.
WFMC Service Tips -- Door Lock HINT: To remove the access cover to use the door lock manual release, insert a pointed object (or tool) into the hole, push in to release the latch and rotate the cover clockwise. Door lock manual release Door lock HINT: Can remove fascia panel & front shield to access door lock. Door lock terminals Current production drain pumps are beige color – earlier pumps were black. HINT: Door lock manual release cable is held to the right side of the drain pump by a clip.
WFMC Service Tips – Resetting Door Locks (1) Occasionally door locks stay locked when doors are opened while they’re locked, preventing doors from closing. Please follow these instructions to reset door locks. Rear view Remove front seal spring Move door seal for access Push onto back of door lock until it clicks open HINT: Reach around back of door lock (opposite latch opening) and push onto back of lock plate (directly behind latch) until it clicks.
WFMC Service Tips – Resetting Door Locks (2) There are three ways to reset door locks (shown below) – each has advantages & disadvantages: 1. 2. 3. Access past door seal (shown on previous page) – eliminates any chance of cosmetic damage, but requires reattaching door seal spring (which can be tricky). Access from top panel – provides access to door lock without removing door seal, but allows scratching of fascia panel and screw caps.
WFMC Service Tips – Replacing Door Locks If door locks don’t hold properly, replace them (as shown below): 1. 2. Acceptable door locks – Those showing “1” on black housing and “1”, “2” or “3” on white carrier (see below). Door locks to be replaced – Those showing “2” on black housing and “4” on white carrier (see below). Front view • “1” -- is acceptable • “2” -- should be replaced • “1”, “2” or “3” -is acceptable • “4” -- should be replaced Procedure on replacing door locks: 1.
WFMC6400 Service Tips -- Water Flow Meter Flow sensor The flow sensor measures the volume of (cold) water flowing into the detergent dispenser. It consists of an impeller wheel with a magnet core and a Hall integrated circuit. When the wheel rotates, the magnet emits impulses to the Hall IC. The water flow is marked by an arrow on the side of the sensor.
WFMC6400 Service Tips -- Mechanical & Analog Pressure Switches The water level (pressure switch) system consists of a mechanical pressure switch and an analog pressure switch.
WFMC Service Tips -- Polinox Outer Drum (Tub) POLINOX TUB Lifecycle Test 4000 washes = 10 years Highest spin 300 consecutive times (wash-spin, wash-spin, etc.
WFMC3200 Service Tips – Control Module Wire & Terminal Colors To water valves To drain pump BL WH 2-BL WH 2-BL 5-BK WH To motor control IMPORTANT: Its possible to miswire the WH, YE & GN terminals. Make sure the terminals are in the right order & direction (wires on left side). WH BL clear 6-WH 120V input HINT: This will help with reconnecting wires.
WFMC6400 Service Tips – Control Module Wire & Terminal Colors To water valves To drain pump WH BL 2-BL 2-BL WH To motor control 5-BK 4-WH PK WH To heater GY To pressure switch YE 120V input HINT: This will help with reconnecting wires. IMPORTANT: Its possible to miswire the WH, GY & GN terminals. Make sure the terminals are in the right order & direction (wires on left side).
WFMC Service Tips -- Test Program (1A): Starting WFMC3200 Test Program The WFMC3200 washer test programs self-diagnose problems, including listing the last 8 fault codes from the control module & the last 16 fault codes from the motor control. The tests are easy to use, speeding up and simplifying diagnosing washer issues. P:01 WFMC3200UC NOTE: Door locks for all water fill and drain tests. HINT: If Start/Pause light doesn’t come on for some tests, door is open. Turn off washer, then close door.
WFMC Service Tips -- Test Program (1B): Starting WFMC6400 Test Program The WFMC6400 washer test programs self-diagnose problems, including listing the last 8 fault codes from the control module & the last 16 fault codes from the motor control. The tests are easy to use, speeding up and simplifying diagnosing washer issues. P1:ERRORS WFMC6400UC NOTE: Door locks for all water fill and drain tests. HINT: If Start/Pause light doesn’t come on for some tests, door is open. Turn off washer, then close door.
WFMC Service Tips -- Test Program (1C): Choosing Tests Understanding WFMC3200 & WFMC6400 test programs: 1. Generating fault codes: Most fault codes are generated by running specific tests. 2. Viewing fault codes: Fault codes are viewed only by running test P1 (WFMC6400) / P:01 (WFMC3200), not during each test. 3. Procedure: 1st - select test based on expected problems (see below). 2nd - run test. 3rd - go back and run test P1 (P:01) to see faults. Scroll through each fault and check if it occurred.
WFMC Service Tips -- Test Program (1D): Displaying Selected Tests Both washers have displays showing what test has been selected.
WFMC Service Tips -- Test Program (1E): WFMC64 Text Displays WFMC6400UC washers have full text displays showing which devices are running at each point during each test. They’re helpful for visually determining whether washers are properly filling, draining & spinning. Numeral Displayed letter 0 P NOTE: “ ” = drum speed (RPM) & “n” = pressure switch reading. HINT: Using the test program can cut down repair times & eliminate repeat calls from misdiagnosing problems.
WFMC Service Tips -- Test Program (2A): Fault Code Displays Viewing fault codes: • WFMC3200 display alternates between fault code (e.g. E:01) & when fault occurred on in last 8 washes (e.g. C:00) – shows C:00 if fault didn’t occur. • WFMC6400 display shows fault code & when fault occurred on in last 8 washes (e.g. 0 - Er:01).
WFMC Service Tips -- Test Program (2B): Module Fault Codes (Test 1) Test P1:ERRORS / P:01 (Viewing control module fault codes) -- Start & end test P1 (WFMC6400) / (P:01) (WFMC3200) by pushing Start/Pause button. Scroll through list of fault codes by pushing Spin Selection (WFMC3200) or Menu (WFMC6400) buttons. • WFMC3200 display alternates between fault code (e.g. E:01) & when fault occurred on in last 8 washes (e.g. C:00) – shows C:00 if fault didn’t occur.
WFMC Service Tips -- Test Program (2C): Motor Control Fault Codes (Test 1) Test P1:ERRORS / P:01 (Viewing motor control fault codes) -- Start & end test P1 by pushing Start/Pause button. Scroll through list of (18) fault codes by pushing Spin Selection (WFMC3200) or Menu (WFMC6400) buttons. • WFMC3200 display alternates between fault code (e.g. d:01) & when fault occurred on in last 16 washes (e.g. C:00) – shows C:00 if fault didn’t occur.
WFMC Service Tips -- Test Program (3): Tests 2 & 3 Test P2:SAFETY / P:02 (Safety test program) -Skip this European test. The test ends on its own - stop it by pushing the Spin Selection button (WFMC32) or Menu button (WFMC64). Operation Starts filling (valve 2 - cold) WFMC6400 Display D M P H V Notes 1 2 3 NH n 075 Starts heating (30 D M P H 1 2 3 N H V seconds) n 075 HINT: Do not use this test as it applies to European models requiring VDE safety testing.
WFMC Service Tips -- Test Program (4): Tests 4 & 5 Test P4:MOTOR / P:04 (Motor test program) -Test 4 turns on motor (wash & spin) and generates fault codes. The test takes > 10 minutes to run and ends on its own, but can be stopped by pushing the Spin Selection button (WFMC32) or Menu button (WFMC64).
WFMC Service Tips -- Test Program (5): Tests 6 & 7 Test P6:DISPLAY / P:06 (Display test program) -Test 6 turns on all displays for a visual check. The test ends on its own (in ~ 50 seconds for WFMC64) - stop it by pushing the Spin Selection button (WFMC32) or Menu button (WFMC64). No fault codes are generated. If a display segment doesn’t come on, replace control module (since displays are included with control modules).
WFMC Service Tips -- Test Program (6): Tests 8 & 9 Test P8:NIVEAU1 (Analog pressure switch test program) -- The test turns on the analog pressure switch Test P9:NIVEAU2 / P:09 (Mechanical pressure switch test program) -- The test turns on the mechanical (WFMC6400 only) and generates fault codes. The test can be stopped by pushing the Menu button. pressure switch and generates fault codes. Stop it by pushing the Spin Selection button (WFMC32) or Menu button (WFMC64).
WFMC Service Tips -- Test Program (7): Tests 11 - 13 Test P11:FLOW (Flow meter test program) -- The test turns on the flow meter (WFMC6400 only) and generates fault codes. The test has ended when U05 has displayed (< 1 minute) and can be stopped by pushing the Menu button. Operation Changes as water level changes Changes as water level changes WFMC6400 Display D M P H U00 Water volume measured by flow meter 1 2 3 N0 F…. D M P H U05 V V F….
WFMC Service Tips -- Test Program (8): Tests 14 - 17 Test P14:BUZZER / P:14 (Buzzer test program) -Buzzer sounds when test is run. Test P15:PUMP / P:15 (Drain pump test program) - The test turns on the drain pump and generates fault codes. The test runs for ~ 30 minutes and can be stopped by pushing the Spin Selection button (WFMC32) or Menu button (WFMC64).
WFMC Service Tips -- Troubleshooting (1) Symptom Problem Solution Washer won’t start. Electricity is disconnected or has been turned off. Cycle selector knob or control module has failed. Make sure washer is connected to an appropriate 120V, 60 Hz circuit (according to local codes). Turn on electricity. Control module has onboard cycle selector knob. Check voltage output to water inlet valves and drum motor (when they’re energized). If no voltage, replace faulty control module. Washer won’t fill.
WFMC Service Tips -- Troubleshooting (2) Symptom Drum won’t rotate. Washer won’t heat. Problem Solution Drum rear bearing has failed. Check how drum rotates. If drum wobbles or won’t move, replace outer tub (containing faulty rear bearings). Motor control has failed. Check voltage at motor connectors when motor is energized. If low or no voltage, replace faulty motor control. If voltage ~ 120V, check motor resistance (when washer de-energized). If motor is OK, replace faulty motor control.
WFMC Service Tips -- Troubleshooting (3) Symptom Washer overheats. Door won’t lock. Problem Solution Control module has failed. Check voltage to heater. If voltage is present when heater shouldn’t be on, replace faulty control module. NTC failed. Disconnect NTC and measure resistance at terminals (~ 22.8 – 27.4 kΩ @ 20ºC (68ºF)). Replace NTC if faulty. Door isn’t properly. closed Close door securely. If door won’t latch, check door latch and door hinge alignment. Door latch is broken.
WFMC Service Tips -- Troubleshooting of Minor Faults 1 (Customer Self-Help) 1st Edition/Revision 6 (2/2/04)
WFMC Service Tips -- Troubleshooting of Minor Faults 2 (Customer Self-Help) 1st Edition/Revision 6 (2/2/04)
WFMC Service Tips -- Customer Cleaning and Maintenance 1st Edition/Revision 6 (2/2/04)
