Bosch WFMC32 Скачать руководство пользователя страница 15 | Manualshive

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Rev 0 (1/17/08)

15

WFMC64/84 Service Tips

WFMC64/84 Service Tips

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Water Flow Meter

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.

Specifications:

• Voltage:

12 VDC

• Detected flow rate:

0 – 10 liters/minute

NOTE: If there’s air bubbles in the water, higher
flow rates may be detected.

Water flow arrow

HINT:

Make sure the water flow arrow points

from the water inlet valve to the dispenser.

Hot

Cold

Cold

Water flow

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Содержание WFMC32

Страница 1: ... panel disassembly 4 Tub drum dampers 5 Drum drive motor 6 Drain pump 7 Front panel disassembly 8 Installing door seals 10 Heater NTC 11 Door lock 12 Vibration checklist 13 Sensors 14 Test program 17 Fault codes 19 Troubleshooting 22 Oversudsing 25 Quiz 26 Click onto any link to jump to that page 702_58300000133618_ara_en_a ...

Страница 2: ...spenser 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 Knobs are permanently attached to panels and cannot be removed When reassembling panels tuck rear tabs under top panel 1st T 20 screws 702_58300000133618_ara_en_a ...

Страница 3: ...tic parts will break Start from left side Pry outer inner tabs together L R Pry out 3 inner tabs all outer tabs HINT The knob does NOT have to be removed to remove the control module The module lifts off completely from the panel knob buttons HINT Don t remove the wire holders clip off wire ties instead Carry extra wire ties to reattach wire harnesses NOTE Some control modules have been replaced s...

Страница 4: ... 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 Remove top panel Remove top panel screws Rear panel Top panel removed Rear panel removed T 20 screws T 20 screws 702_58300000133618_ara_en_a ...

Страница 5: ...rough rear of washer 6 Remove 18 T 25 Torx screws holding front rear tubs together HINT When installing outer tub bolts screw them in by hand onto the first thread Do not overtighten or cross thread them NOTE Rear drum bearings are factory press fit into rear outer tubs and cannot be removed or serviced Removing tub screws Damper Removing front of tub T 25 screws Comparing Comparing tub resins tub...

Страница 6: ...ut toward rear of washer 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 Drum drive motor Rear tub spring 10mm bolts HINT Drum drive motors and controls have changed a few times motors and motor controls can t be mixed...

Страница 7: ...INT Drain pumps are mounted on four rubber feet to dampen vibration noise To remove drain pumps carefully slide them toward rear of washers To install them carefully insert all four feet into notches in washer base then slide them forward Drain pump Note four mounting feet Drain pump Current production pumps are beige color earlier WFMC pumps were black CAUTION If opening drain pump access cover t...

Страница 8: ...1 Front Panel 1 Remove door latch screws Carefully remove front shield Removing front shield Remove hinge cover screws Remove hinge screws Remove door seal spring Rear access is best for most repairs Hinges cannot be reversed 702_58300000133618_ara_en_a ...

Страница 9: ...emoving 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 T 20 screws T 20 screws 702_58300000133618_ara_...

Страница 10: ...g at door bottom then insert front spring clamp into notch of entire left half of door seal 180º from top to bottom 7 While pulling right side of spring using needlenosed pliers pull clamp into right side seal notch then carefully release spring Hold clamp next to front shield so clamp won t pull seal off NOTE Check to make sure seal is seated after installation so no leaking will occur TIP Left h...

Страница 11: ...blade screwdriver to remove it 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 NTC 702_58300000133618_ara_en_a ...

Страница 12: ...r lock manual release insert a pointed object or tool into the hole push in to release the latch and rotate the cover clockwise HINT Door lock manual release cable is held to the right side of the drain pump by a clip Simply pull on the cable to release the door Current production drain pumps are beige color earlier WFMC pumps were black Use care to avoid being cut on front panel after access cove...

Страница 13: ... level Tighten leveling leg locknuts Prevents loosening over time Remove all four shipping bolts Shipping bolts or their red plastic spacers have been left in washers Make sure all four shipping bolts and plastic spacers that have fallen inside washers have been removed Use double sided tape under leveling legs Helpful for washers on slick floors Check dampers Make sure dampers are working properl...

Страница 14: ...uring 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 84 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 s...

Страница 15: ... 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 Specifications Voltage 12 VDC Detected flow rate 0 10 liters minute NOTE If there s air bubbles in the water higher flow rates may be detected Water flow arrow HINT Make sure the water flow arrow points from the water inlet valve to the dispenser...

Страница 16: ... switching positions Water level level 1 Water heating level Overflow level Pressure Sensor The pressure sensor black determines the different water levels in the various wash programs It is piezo electric pressure on it generates a voltage and generates between 0 5 3 5 VDC HINT Its not helpful to measure the pressure sensor voltage because its shown on the digital display while the washer is in t...

Страница 17: ...washer then close door Entering using WFMC32 33 43 53 test programs To reset rotate cycle selector knob to Off position To enter test program push and hold Spin Selection and Delay Start buttons at the same time then rotate cycle selector knob ccw to Permanent Press Cold position Hold Spin Selection and Delay Start buttons until P 01 shows in display To select tests push Spin Selection button to s...

Страница 18: ...ush and hold Menu and Select buttons at the same time then rotate cycle selector knob ccw to Permanent Press Cold position Hold Menu and Select buttons until P1 Errors shows in display To select tests push Menu button to scroll through tests until desired test shows in display P1 P17 Start Pause light will flash To start tests push Start Pause button while its light is flashing light stays lit whe...

Страница 19: ...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 TIP Washers are designed to give a service history not show only latest fault codes Since fault codes stored in module or motor control can t be cleared don t expect fault codes to be reset to 0 when repairs are made HINT If ERROR shows on...

Страница 20: ...r locks thinking it has overfilled E 05 Er 05 P 16 NTC open circuited Faulty NTC or bad wire harness E 06 Er 06 P 16 NTC shorted Faulty NTC or bad wire harness E 07 Er 07 P 16 Unexpected heating heater on at wrong time Faulty heater or stuck heater relay E 08 Er 08 P 16 Heater doesn t shut off Faulty heater or stuck heater relay E 09 Er 09 P 4 Communication lost to motor Faulty wire harness Er 10 ...

Страница 21: ...ontrol inverter failed or motor shorted Faulty motor control or motor d 08 dr 08 P 04 Motor speed sensor failed Faulty speed sensor or wire harness d 09 dr 09 P 04 Voltage too high Faulty motor control d 10 dr 10 P 04 Power limiter switch off Motor overloaded or binding d 11 dr 11 P 04 Voltage too low Faulty motor control d 12 dr 12 P 04 Motor control high current switch off Motor overloaded or bi...

Страница 22: ... blocked Water pressure too low Control module has failed Water inlet valve s has failed Turn on water supply Check water inlet hose filters Clean if dirty Replace filters if damaged Check incoming water pressure Check voltage output to water inlet valves when they re energized If no voltage replace faulty control module Measure resistance of water inlet valves 2 7 4 5 kΩ Replace inlet valve s if ...

Страница 23: ...en washer de energized If motor faulty replace faulty drum motor Washer won t heat Heater has failed NTC has failed Heater is covered with scale Voltage too low Control module has failed Disconnect heater and measure resistance at terminals 13 7 15 2 Ω Replace heater if faulty Disconnect NTC and measure resistance at terminals 22 8 27 4 k Ω 20ºC 68ºF Replace NTC if faulty If possible remove clean ...

Страница 24: ...22 8 27 4 kΩ 20ºC 68ºF Replace NTC if faulty Door won t lock Door isn t closed properly Door latch is broken Door lock has failed Close door securely If door won t latch check door latch and door hinge alignment Replace broken door latch Measure resistance of door lock mechanism 159 211 Ω Replace faulty door lock mechanism WARNING Unplug washer before starting any repairs HINT The washer test prog...

Страница 25: ...ng a hot water wash with cold water rinse gallon of white vinegar When suds have overflowed run a cold water rinse using 1 gallon of white vinegar NOTE Don t use vinegar routinely to avoid possible damage to washer parts Customer education Educate customer on type HE and amount of detergent to use To remove suds from clothes have customer rewash clothes with liquid fabric softener recommended amou...

Страница 26: ...ed with any washer or motor control T F 5 All washer components are accessible from the rear T F 6 Changing washer feet will solve any vibration problem T F 7 Front and rear tubs can be interchanged regardless of color T F 8 If the washer stops for a failure the door can t be opened and laundry can t be removed T F 9 If the motor won t run is the problem with the washer control motor control motor...

Страница 27: ...sher components are accessible from the rear T F 6 Changing washer feet will solve any vibration problem T F 7 Front and rear tubs can be interchanged regardless of color T F 8 If the washer stops for a failure the door can t be opened and laundry can t be removed T F 9 If the motor won t run is the problem with the washer control motor control motor or motor wire harness 10 Rear bearings can be c...

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