Bosch WFMC3200UC, WFXD5200UC, WFMC6400UC, WFXD8400UC Training Manual

2nd Edition/Revision 0 (4/28/04)

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WFMC/WFXD Washer Training

Program

WFMC/WFXD WASHER TRAINING MANUAL

2nd Edition/Revision 0 (4/28/04)

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WFMC/WFXD Washer Table of Contents

••Operation…………...

Operation…………...

••Disassembly……….

Disassembly……….

••Ratings…………….

Ratings…………….

••Service Tips……….

Service Tips……….

••Test Program………

Test Program………

••Troubleshooting…...

Troubleshooting…...

••Maintenance……….

Maintenance……….

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Operation

––WFMC

WFMC

Fascia Panels

WFMC64UC

WFMC32UC

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Operation

––WFXD

WFXD

Fascia Panels

WFXD5200UC

WFXD8400UC

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Both have Regular/ Cotton, Permanent Press, Delicates, Hand Wash, Temperature Boost, Wool, Active Wear, Rinse Plus & Bleach settings.

WFMC64UC

WFMC3200UC

Cycle Selector

Knob

Digital

Display

Special Wash

Buttons

Operation

––WFMC

WFMC

Controls

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Operation

–

WFXD

Controls

Both have Regular/ Cotton, Permanent Press, Delicates, Hand Wash, Temp Plus, Wool Care, Active Wear, Extra Rinse & Bleach settings.

WFXD8400UC

WFXD5200UC

Cycle Selector

Knob

Digital

Display

Special Wash

Buttons

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Operation

––Sensors (1)

Sensors (1)

1A. Load Sensor (WFMC32/WFXD52)

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 (WFMC64/WFXD84)

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. Digital Temperature Sensor (WFMC32/WFXD52 & WFMC64/WFXD84)

The thermostat monitors the temperature of the water and controls the length of time the heating element is on, ensuring the proper temperature for the chosen cycle.

3A. Suds Sensor (WFMC32/WFXD52)

During the beginning of the1st rinse/spin phase, the washer determines if there are excessive suds and automatically adds 2 rinses (if necessary). This is accomplished via the pressure switch and the motor synchronization system.

3B. Continuous Suds Sensor (WFMC64/WFXD84)

Checking the pumping out phase of the main wash, the beginning of the 1st rinse/spin phase and the actual spin speed vs. the programmed spin speed, the washer determines if there are excessive suds and automatically adds up to 2 rinses (if necessary). This is accomplished via the pressure switch, analog pressure switch and the motor synchronization system.

4. Unbalanced Load Sensor (WFMC32/WFXD52 & WFMC64/WFXD84)

During the final spin cycle the washer monitors the positioning and balance of the load. If the load unbalanced, the washer stops and adjusts the load up to 15 times and reduces the spin speed to finish the cycle. This is accomplished via the motor synchronization system.

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Operation

––Sensors (2)

Sensors (2)

Mechanical Pressure Switch - (WFMC32/WFXD52 & WFMC64/WFXD84) 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.

Analog Pressure Switch - (WFMC64/WFXD84)

• Precise measuring of actual water level

• Accurate load detection

• Control of the pump - noise reduction

• Time reduction - no pumping when empty

BENEFITS: Continuous adjustment of wash times

Water and energy consumed varies according to load size

1A/1B. Load & Dynamic Load Sensors

Mechanical

Pressure

Switch

Analog

Pressure

Switch

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Operation

––Sensors (3)

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.

BENEFITS: Minimizes water consumption

Exact Load Detection Superior Cleaning Performance

• An internal water clock monitors water inflow via soak compartment.

• Ensures exact control of water inlet valves - always right amount of water.

• Independent from water pressure.

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Operation

––Sensors (4)

Sensors (4)

2. Digital Temperature Sensor

All 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.

Heater

Thermostat (NTC)

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Operation

––Sensors (5)

Sensors (5)

3A/3B. Suds & Continuous Suds Sensors

 Detection during draining out after main wash

 immediate additional rinse & cancelling of 1st rinse spin

 Detection during 1st rinse spin

 immediate interuption of spin

 insertion of one or two additional rinses

 reduced agition during additional anti foam rinse

 Detection during any other rinse spin

 immediate interuption of spin  reduced agitiation in following rinse cycle

 All subsequent rinse spin cycles are always rechecked

for suds

WFMC64/WFXD84

WFMC64/WFXD84 WFMC32/WFXD52

WFMC64/WFXD84

NOTE: Suds build-up usually occur only when way too

much detergent is used with lightly soiled loads.

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Operation

––Sensors (6)

Sensors (6)

4. Unbalanced Load Sensor

• Accurate measuring of unbalance by deviation of spin speed and slow down

time of drum

• Infinite adapting of spin speeds

• Compensates reducing of spin speeds by prolonging spinning times

• Will attempt up to 15 times to redistribute a load

Advantages

• Reduction of noise

• Better stability of machine

• Good spinning results with big unbalances

2-step detection

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Operation

––Sensors (7)

Sensors (7)

4. Unbalanced Load Sensor

Spin speed [rpm]

200

400

600

800

1000

1200

max. 15 trials

III

load distri bution unba l a nce Spin spe ed (rpm) spinning profile

good small 1200 (max.) I uneven medium 1000 (reduced) II bad big 800 (low) III none dangerous no spinning IV

After 4 attempts After 7 attempts After 14 attempts

2-step detection

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Operation

––Cleaning Drain Pump Trap

Cleaning Drain Pump Trap

Unlike WFK, WFL & WFR washers, WFMC/WFXD 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.

NOTE: There’s no provision to drain

water manually from drain pumps like earlier models.

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 WFMC pumps were black.

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Operation

––Preventing Water Collecting in Door Seals

Preventing Water Collecting in Door Seals

Unlike WFK, WFL & WFR washers, WFMC/WFXD 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.

Directing water away from door seals:

• Drums are tilted to direct water to the back of the drum and away from the door seal.

• Door glass is shaped to direct water away from the door seal.

• Paddles insure clothing at front of dryer get wet despite tub being tilted toward the back.

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Operation

––Laundry Deflector

Laundry Deflector

Unlike WFK, WFL & WFR washers, WFMC/WFXD washers have a laundry deflector to prevent small items such as socks and wash rags from collecting in door seals. Without laundry deflectors, small clothes items can get jammed in door seals and apply pressure to bottoms of doors.

Without the laundry deflector, small clothes items being jammed in door seals would only cause minimal leakage (a few drops).

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Disassembly

––Fascia (Control) Panel (1)

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 panel 1

Knobs are permanently attached to panels and cannot be removed.

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Disassembly

––Fascia (Control) Panel (2)

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. If modules don’t come out easily, the procedure hasn’t been followed and plastic parts will break.

HINT

: The knob does NOT have

to be removed to remove the control module. The module lifts off completely from the panel, knob & buttons.

NOTE: Some control modules have been replaced since fault codes stored in module or motor control can’t be cleared. Modules are operating properly and shouldn’t

be replaced to clear fault codes.

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Disassembly

––Top & Rear Panels (1)

Top & Rear Panels (1)

Remove top panel

Remove top panel screws

T-20 screws

Top panel removed

Rear panel removed

Rear

panel

T-20 screws

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).

To remove top panel

(for easier parts access), remove (3) T-20 screws and slide panel to rear of washer.

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Disassembly

––Drum/Front Panel (1)

Drum/Front Panel (1)

Remove hinge cover screws Remove hinge screws Remove door seal spring

Remove door latch screws Carefully remove front shield Removing front shield

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Disassembly

––Drum/Front Panel (2)

Drum/Front Panel (2)

Front panel tab

T-20 screws

Remove top front panel screws Remove bottom front panel screws Note front panel mounting tabs

HINT: Removing front panel at this point will make

removing front counterweights easier.

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.

HINT: Most washer screws require T-20 Torx

screwdrivers.

Remove front panel

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Disassembly

––Drum/Front Panel (3)

Drum/Front Panel (3)

Remove door latch Note door latch manual release Top counterweight must be removed

13mm screws

Loosen top counterweight screws Slide out top counterweight Note top counterweight bushing slots in tub

+ 51 hidden pages

Bosch WFMC3200UC, WFXD5200UC, WFMC6400UC, WFXD8400UC Training Manual

Specifications and Main Features

Frequently Asked Questions

User Manual