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WFMC WASHER TRAINING MANUAL
1st Edition/Revision 6 (2/2/04)
2
WFMC Washer Training Programgram
•Features and Benefits
•Product Description
•Warranty
•Installation
•Operation
•Disassembly
•Reassembly
•Wiring Diagram
•Service Tips
1st Edition/Revision 6 (2/2/04)
3
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. & Canada)
1st Edition/Revision 6 (2/2/04)
4
Extra Features and Benefits -- WFMC6400C6400
•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 cyclecle
stops)
•Real time delay (enter actual time of day for wash to end)end)
•Reduced ironing
•Interactive language display - choose desired languageage (English, French, Spanish)
•Continuous suds sensing
•Child lockout
1st Edition/Revision 6 (2/2/04)
5
Product Description
•Electronic controls
•Large capacity & door opening
•Detergent & softener dispenser
•Regular/Cotton, Permanent Press, Delicates & Hand Wash settings
•180º door opening
•Stainless steel inner drum
•Durable Polinox outer drum
•Power Wash (WFMC32), Bleach, Rinse Plus & Reduced Ironing (WFMC64) buttons
•Adjustable spin speeds
•Guaranteed temperaturesperatures
•UL listed (U.S.. && Canada)Canada)
•Drain hose & cordcord holderholder
Electronic |
Adjustable |
controls |
spin speeds |
Safety |
Energy |
door lock |
Star rated |
Accessible drain trap (for servicers only)
1st Edition/Revision 6 (2/2/04)
6
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.
1 Year Full Limited Warranty
Bosch will repair or replace, free of charge, any component part that proves defective under conditions of normal home use, labor and shipping costs included. Warranty repair service must be performed by an authorized Bosch Service Center.
2 Year Limited Warranty
Bosch will provide replacement parts, free of charge, for any component part that proves defective under conditions of normal home use, shipping costs included, labor charges excluded.
For location of nearest repair depot call 1-800-944-2904 from 5:00 AM -- 5:005:00 PMPM MM--FF (Pacific time)
1st Edition/Revision 6 (2/2/04)
7
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. 1st 2 digits show factory # (85 = New Bern), 3rd digit shows year (1 = 2003), 4th & 5th digits show month built (08 = August). So, serial # starting with “85308…400126” = washer built @ New Bern with FD 8308 000126.
1st Edition/Revision 6 (2/2/04)
8
Installation -- Reprint of Installation Instructionsuctions (1)(1)
NOTE: Be sure to follow all national & local codes.
1st Edition/Revision 6 (2/2/04)
9
Installation -- Reprint of Installation Instructionsuctions (2)(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.
1st Edition/Revision 6 (2/2/04)
10
Installation -- Reprint of Installation Instructionsuctions (3)(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).
1st Edition/Revision 6 (2/2/04)
11
Operation -- Fascia Panels
1st Edition/Revision 6 (2/2/04)
12
Operation -- Controls
WFMC3200UC
Special Wash |
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Buttons |
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Digital |
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Cycle |
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Selector |
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Display |
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Knob |
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Both have Regular/ Cotton, Permanent Press, Delicates, Hand Wash, Temperature Boost, Rinse Plus & Bleach settings.
WFMC6400UC
1st Edition/Revision 6 (2/2/04)
13
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. Digital Temperature Sensor (WFMC3200UC & WFMC6400UC)
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 (WFMC3200UC)
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 (WFMC6400UC)
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 (WFMC3200UC & WFMC6400UC)
During the final spin cycle the washer monitors the positioning and balance of the load. stops and adjusts the load up to 15 times and reduces the spin speed to finish the cycle. synchronization system.
If the load unbalanced, the washer This is accomplished via the motor
1st Edition/Revision 6 (2/2/04)
14
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.
Analog Pressure Switch - (WFMC6400UC)
•Precise measuring of actual water level
•Accurate load detection
•Control of the pump - noise reduction
•Time reduction - no pumping when empty
Analog Mechanical
Pressure Pressure
Switch Switch
BENEFITS: Continuous adjustment of wash times
Water and energy consumed varies according to load size
1st Edition/Revision 6 (2/2/04)
15
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.
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.
1st Edition/Revision 6 (2/2/04)
16
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.
Heater
Thermostat (NTC)
1st Edition/Revision 6 (2/2/04)
17
Operation -- Sensors (5)
3A/3B. Suds & Continuous Suds Sensors
WFMC6400
WFMC6400
WFMC3200
WFMC6400
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
NOTE: Suds build-up usually occur only when way too much detergent is used with lightly soiled loads.
1st Edition/Revision 6 (2/2/04)
18
Operation -- Sensors (6)
4. Unbalanced Load Sensor
2-step detection
•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
1st Edition/Revision 6 (2/2/04)
19
Operation -- Sensors (7)
4. Unbalanced Load Sensor
[rpm] |
1200 |
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1000 |
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speed |
800 |
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600 |
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Spin |
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400 |
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200 |
max. 15 trials |
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0 |
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2-step detection
I
II
III
IV
load distribution |
unbalance |
Spin speed (rpm) |
spinning profile |
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good |
small |
1200 |
(max.) |
I |
After 4 attempts |
uneven |
medium |
1000 |
(reduced) |
II |
After 7 attempts |
bad |
big |
800 (low) |
III |
After 14 attempts |
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none |
dangerous |
no spinning |
IV |
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1st Edition/Revision 6 (2/2/04)
20
Operation -- Cleaning Drain Pump TrapTrap
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.
NOTE: There’s no provision to drain water manually from drain pumps like earlier models.
1st Edition/Revision 6 (2/2/04)
21
Operation – Preventing Water Collecting in DoorDoor SealsSeals
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.
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.
1st Edition/Revision 6 (2/2/04)
22
Disassembly – Fascia (Control) Panelel (1)(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 1st.
Knobs are permanently attached to panels and cannot be removed.
1st Edition/Revision 6 (2/2/04)
23
Disassembly – Fascia (Control) Panelel (2)(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 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: Don’t remove the wire holders – clip off wire ties instead. Carry extra wire ties to reattach wire harnesses.
HINT: The knob does NOT have to be removed to remove the control module. The module lifts off completely from the panel, knob & buttons.
1st Edition/Revision 6 (2/2/04)
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