Bosch WFVC VISION 16 Page 40 Repair Instructions Download

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6 FAULT

DIAGNOSTICS

6.1

Test program / fault (error) codes

1. Selecting the test program

Activate test
program:

Set program selector switch to OFF position

Press MENU + SELECT buttons for at least 3s
set program selector to Permanent Press Cold program:

Display

Until display is active
P1:Errors is shown / last occurred error code is
displayed

Select test
program:

Push MENU button to scroll through tests

-P:01
-> Errors (see 2.)

-P:02
-> Safety test (see 3.)

-P:03
-> Automatic test sequence (see 4.)

-P:04
-> Motor (see 5.)

-P:05
-> Variant (not implemented, see 6.)

-P:06
-> Display (see 7.)

-P:07
-> Buttons and selector switch (see 8.)

-P:08
-> Pressure sensor (see 9.)

-P:09
-> Pressure switch (see 10.)

P:12
-> Update (see 12.)

P:13
-> Valves (see 13.)

P:14
-> Buzzer (see 14.)

P:15
-> Pump (see 15.)

P:16
-> Heater (see 16.)

P:17
-> Noise (see 17.)

Display is active

P:01 is shown, LED Start/Pause is flashing

P:02 is shown, LED Start/Pause is flashing

P:03 is shown, LED Start/Pause is flashing

P:04 is shown, LED Start/Pause is flashing

P:05 is shown, LED Start/Pause is flashing

P:06 is shown, LED Start/Pause is flashing

P:07 is shown, LED Start/Pause is flashing

P:08 is shown, LED Start/Pause is flashing

P:09 is shown, LED Start/Pause is flashing

P:12 is shown, LED Start/Pause is flashing

P:13 is shown, LED Start/Pause is flashing

P:14 is shown, LED Start/Pause is flashing

P:15 is shown, LED Start/Pause is flashing

P:16 is shown, LED Start/Pause is flashing

P:17 is shown, LED Start/Pause is flashing

Start test
program:

Press START/PAUSE button

LED Start/Pause is illuminating

Abort test
program:

Press MENU button or set program selector to Off position

Press START/PAUSE button at:
- Errors (see 2.)
- Variant (not implemented, see 6.)

Fault in test
program:

Fault display (see 2.)

Leave test
program:

Switch off device

2. Errors

Display *

Fault/
Fault description

Remarks,
possible cause

Results Test

program

Er:01

Door open

Door switch not actuated

- close door,
- check lock,
- check wire harness

Normal

Er:04

Door actuation defective

Triac defective,
Door relay stuck

- replace control

Normal

Er:05

NTC interruption

Cable break,
NTC damaged

- rectify cable break,
- replace NTC

P:16

Er:06

NTC short circuit

Cable short circuit,
NTC damaged

- rectify cable short
circuit,
- replace NTC

P:16

Damaged heater

- check heater for short
circuit to earth,
- replace heater

Er:07

Unexpected heating (temperature
increase without actuation of heater)

Heater relay stuck

- replace control

P:16

Damaged heater

- check heater for short
circuit to earth,
- replace heater

Er:08

Heating time exceeded (heater does
not switch off)

Heater relay stuck

- replace control

P:16

Er:09

No communication between control
and inverter

Wire harness

- check wire harness

P:04

Er:11
Er:12

Water inlet time exceeded

No water within 6min,
Damaged valve,
Wire harness,
Blocked hose

- check water supply,
- check valve,
- check wire harness,
- check hose

P:08,
P:09,
P:13

Er:13

Pumping time exceeded

Damaged pump,
Wire harness,
Blocked hose

- check pump,
- check wire harness,
- check hose

P:15

Er:14

Safety level reached

Blocked pump,
Blocked hose,
Damaged valve

- check pump,
- check hose,
- check valve

P:09

Er:17

Aquastop error

Aquastop actuated
Damaged aquastop switch
Wire harness

- Eliminate leaks
- check aquastop
switch
- check wire harness

P:13

Er:20

Spin cycle terminated

No communication between control
and inverter,
Unbalance to high

- check wire harness,
- check load

P:04

Er:21

Foam detected

- consult customer
about dosing

Er:22 Frequency

synchronisation

failure

between control main

Weak power supply

- check power supply

Normal

Er:24

Power supply relay to inverter
damaged

Power supply relay stuck

- replace control

P:04

Er:25

Door lock blocked

Door lock coil overheated by
continuously locking / unlocking

- wait for 3 mins or 30
mins

Normal

dr:01

IGBT short circuit

Damaged inverter control

- replace inverter

P:04

dr:02

IGBT interruption

Damaged inverter control

- replace inverter

P:04

NTC is to hot

- wait a couple of
minutes

P:04

dr:06 NTC-relay

failure

Relay stucked

- replace inverter

P:04

dr:08 Speedometer

failure

Damaged

speedometer,

Wire harness

- check speedometer,
- check wire harness

P:04

dr:09

Line over voltage error (short)

Weak power supply

- check line voltage

P:04

dr:10

Power limiter switch off

To heavy load,
Mechanical friction

- check load,
- check oscillating
system,
- check gasket

P:04

dr:11

Voltage too low

Weak power supply

- check line voltage

P:04

dr:15

Power limiter warning

Too heavy load,
Mechanical friction

- check load,
- check oscillating
system,
- check gasket

P:04

dr:19

Motor asymmetry error

Motor winding short circuit

- replace motor

P:04

IGBT short circuit

- replace inverter

P:04

dr:20

IGBT power stage short circuit

High current

- wait

dr:21

Line over voltage error (long)

Weak power supply

- check line voltage

P:04

dr:22

IGBT Temperature sensor error

IGBT temperature sensor damaged

- change inverter

P:04

702_58300000143607_ara_en_a

Page 40 of 42

Summary of Contents for WFVC VISION 16

Page 1: ...Child lock 6 3 3 Display symbols 7 3 4 Spin speeds 7 3 5 Changing signal volume 8 4 COMPONENTS 9 4 1 Comparison to WFMC Nexxt washers 9 4 2 WFVC washer components 9 4 3 Operation 21 5 REPAIR 23 5 1 Disassembly Reassembly 23 5 2 Diagnosing troubleshooting 33 5 3 Washer vibration 35 5 4 Motor control troubleshooting 35 5 5 Customer diagnosing from Operating Instructions 36 5 6 Customer fault display...

Page 2: ...nning service c Carefully follow all servicing instructions Verify the instructions if there are any that you don t fully understand c Read and heed all Cautions and Warnings on the appliance and those with the replacement parts c Use caution and proper protective gear when handling chassis panels Some of the edges that are not normally exposed may be very sharp To avoid risk of serious injury or ...

Page 3: ... washers screw in feet completely to avoid damage 2 3 AQUASTOP aqua secure AQUASTOP water inlet hoses prevent water from leaking They connect like standard hoses with no special installation needed If an inner hose ever should leak the hose shuts off and it s indicator shows red Hoses are one time and must be replaced when indicators are red For best results AQUASTOP water inlet hoses should be in...

Page 4: ...d for operation Bolts include plastic inserts which must also be removed don t unscrew bolts completely only until bolts and plastic inserts can be removed together If bolts are unscrewed completely inserts will drop inside washer frames Keep transport bolts for future washer moving Once bolts have been removed snap the supplied plastic plugs up into the bolt holes in the rear of washers 702_58300...

Page 5: ...ain hoses Drain hoses connect to the rear of washers and allow washers to be drained into utility tubs or drain lines using the supplied U elbow 2 7 Installation hints 702_58300000143607_ara_en_a Page 5 of 42 ...

Page 6: ...Starting wash cycles with Child lock Rotate the program knob to the desired wash cycle load laundry and close the door the Start Pause light flashes red Press and hold the Start Pause button until the wash cycle starts 5 seconds the Start Pause light stays red and Child lock is activated once the cycle starts 3 2 3 Pausing wash cycles Even when Child lock has been activated wash cycles can be paus...

Page 7: ... the Start Pause button 5 seconds to open the door to add laundry 3 2 5 Deactivating Child lock Rotate the program knob to the desired wash cycle to turn on the washer Press the Menu button until Child lock on is displayed the key symbol flashes Press the Select button until Child lock off is displayed Child lock can be selected only before starting wash cycles or when wash cycles have been paused...

Page 8: ...rough options to Signal setup While in Signal setup press and hold the Select button to continuously change the signal volume While changing the volume continuously the display will show Continuous when the maximum volume has been reached the display will show Max Continuous 702_58300000143607_ara_en_a Page 8 of 42 ...

Page 9: ... washers are as follows 1 Tubs are mounted horizontally instead of tilted vertically 2 Control fascia panels are mounted on the front instead of on the top 3 Dryers can be stacked on top of washers 4 2 WFVC washer components Basic components are control module electric heater drive motor control drain pump sump NTC temperature sensor and door lock 702_58300000143607_ara_en_a Page 9 of 42 ...

Page 10: ...removed from the rear of the tub remove rear panel for access 4 2 2 NTC NTC s Negative Temperature Coefficient sensors mounted in heater assemblies provide accurate temperature measurements NTC 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 19 kΩ 86ºC ...

Page 11: ...e grounded through the motor control Since the tub is plastic and the motor is isolated from the frame It s critical the ground leads from the tub drive motor motor control are connected properly The drive motor drives the drum through a belt around the drum pulley The motor mounts to the tub and moves along with the tub and pulley 4 2 4 Drive motor control Drive motors have a separate control whi...

Page 12: ...switching positions Water level level 1 1 1 6 gal 4 6 l Water heating level 4 4 5 gal 15 17 l Overflow level 15 gal 57 l As the washer fills water not absorbed by the laundry fills the sump As the water level rises into the pressure chamber it increases the air pressure in the chamber which is sensed by the pressure switch The washer control reads the resulting signal and accurately determines the...

Page 13: ...e shock has resistance when pulled it hasn t failed Most vibration has been due to sub floors inadequate for modern high speed appliances or washers not properly leveled see section 5 3 Occasionally grease may leak out of a washer shock absorber damper This is normal and doesn t affect shock performance 4 2 7 Rear shock absorber damper Unlike WFMC washers with a rear spring WFVC washers use a rear...

Page 14: ...nds If necessary door locks can be opened manually by pulling down the white manual release rod located at the right side of the drain pump access 4 2 9 Tub support and dampening system The tub has a 5 point support and dampening system 2 springs 3 shocks allowing it to move independently The tub is supported by the two springs Dampening is accomplished by the three shocks dampers two side one rea...

Page 15: ...2 11 Round button assembly The four 4 round buttons are joined by delicate plastic rods Be careful installing or removing buttons so button joining rods aren t broken 4 2 12 Door glass cover Complete door assemblies are not available However all door components can be readily disassembled and replaced including the outer door glass cover and inner glass bowl 702_58300000143607_ara_en_a Page 15 of ...

Page 16: ... dispenser uses a grid of jets in its cover for superior dissolving and removal of laundry products 4 2 14 AQUASTOP float switch selected models The AQUASTOP system consists of an assembly with float switch float and housing located near the front middle of the washer Plugs are factory inserted into washer bases so water won t leak from bases onto floors If water leaks into the washer base for any...

Page 17: ...ASTOP float switch can t be retrofitted to washers it wasn t installed in originally 4 2 15 AQUASTOP aqua secure inlet hoses selected models Hot and cold water AQUASTOP inlet hoses eliminate leaking The AQUASTOP hose consists of an inner hose inlet water tubing and an outer hose corrugated to drain hoses If the inner hose leaks a small indicator window will show red meaning the hose must be replac...

Page 18: ...due to the number of cases of excessive detergent usage Oversudsing occurs from excessive detergent usage or using the wrong type of detergent When encountering oversudsing advise customers to use less detergent and use a detergent for front loading washers with HE on the package 4 2 16 1 Drain non return assembly 4 2 16 2 Sump The sump has a large opening and doesn t have a sump ball to remove su...

Page 19: ...2 HP 3600 RPM 16 5 Ω class F insulation The drain pump pumps18 liters minute 2 5m 8 head and 30 liters minute 1 25m 4 head Pumping height 8 2 4 m max 4 2 18 Drain pump access cover The drain pump cover can be removed to clean out debris from the pump 4 2 19 Drain pump manual drain hose To remove residual water in the drain pump before it s cover is removed a manual drain hose is provided To use th...

Page 20: ... Laundry deflector The laundry deflector prevents small items such as socks and wash rags from collecting in door seals When small clothes items get jammed in door seals they can apply pressure to bottoms of doors The laundry deflector isn t a separate part but is built into the door seal 4 2 23 Agitator paddles Paddles direct water toward front of washer water drains into paddles from outside of ...

Page 21: ...tor speed washers determine during the start of the 1st rinse if there are excessive suds and add 2 rinses if necessary With oversudsing or suds lock where washers can t remove the excessive sudsing washers won t spin and laundry will be wet 4 3 1 4 Unbalanced load sensor During final spin washers monitor motor speed changes to determine if loads are unbalanced If so washers stop adjust loads and ...

Page 22: ...ow and show red in the indicator window The outer hose is sealed and won t leak Any remaining water pressure won t re open the hose but will help keep the hose closed The hose has a one time failure duty If an inner hose should ever leak where the indicator shows red the hose must be replaced AQUASTOP hoses stop hose leaks whether appliances are on or not They re superior to braided hoses whether ...

Page 23: ...nel 5 1 1 then gently pry up top plastic latches When top latches are released gently pull the panel straight out until the bottom tabs release Don t tilt the panel to avoid breaking the bottom tabs 5 1 3 Control module Remove control module from fascia panel progressively from left to right carefully releasing all plastic latches so latches don t break Gently pry up left side of control so latche...

Page 24: ...ns but fit loosely onto buttons held in place by the control after reassembly When reassembling fascia control panels set panels face down so button caps don t fall out 5 1 5 Round button assembly The clear round button assembly is connected by delicate plastic rods When removing buttons gently pry out and remove them as a group not individually 5 1 6 Rear panel Remove top panel 5 1 1 for better a...

Page 25: ...1 8 Door removal To remove the door from the front panel open the door remove two 2 M4 2x19 T 20 Torx screws and lift the door up and away from the panel 5 1 9 Door disassembly The door isn t available as a complete assembly but is easily disassembled and reassembled It s assembled using screws no plastic latches are used Turn the door upside down The door hook latch covers a screw and must be rem...

Page 26: ...hinge bushings Lift up the inner ring and the outer door glass cover from the outer door frame Note their positions as parts are keyed and fit one way 5 1 10 Front panel Remove top panel 5 1 1 fascia control panel 5 1 2 bottom front panel 5 1 7 and door 5 1 8 Disconnect door seal boot gasket from front panel by removing spring clamp and carefully separating seal lip from panel Remove two screws ho...

Page 27: ...efully separating seal lip from tub If necessary for clearance remove front counterweight s 5 1 12 Rear shock damper 5 1 12 1 Stowing rear shock There isn t adequate clearance to easily disconnect the rear shock from the tub However to save time for tub removal it can readily be disconnected from the base and stowed onto the rear of the tub When the tub is removed for any reason remove the bolt ho...

Page 28: ... 5 1 13 Drum belt and pulley Remove belt from pulley by rotating pulley and walking belt off pulley Remove pulley bolt and pulley from tub 5 1 14 Drum drive motor Remove rear panel 5 1 4 and drum belt pulley 5 1 13 Disconnect motor wire harnesses Remove two motor bolts and pull motor out toward rear of washer Plastic bushings can be pushed out of motor mounting struts and replaced The drum drive m...

Page 29: ...1 2 rear panel 5 1 4 bottom front panel 5 1 7 and front panel 5 1 10 2 Disconnect and stow rear shock onto rear of tub 5 1 12 1 3 Disconnect wire harnesses as needed wire ties can be cut off but clips shouldn t be cut 4 Remove door seal 5 1 11 top counterweight and both front counterweights NTC connector is latched carefully pry latch with small blade screwdriver to remove it Heater is removed fro...

Page 30: ...mbly 5 1 17 Drain pump Remove front door 5 1 7 then loosen and remove hoses Disconnect manual release rod from clip and disconnect drain pump 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 pumps are mounted on four rubber feet to dampen vibration noise To install them carefully insert all four feet into notche...

Page 31: ...ized screws Remove hose clamps from dispenser and pull it out from the top of the washer 5 1 19 Door lock Open door and remove door seal 5 1 11 Remove two door lock screws move lock toward rear of washer until it clears the front panel and lift lock from washer lift it carefully since the manual door lock release rod will be pulled out along with the door lock Once the lock is removed disconnect t...

Page 32: ...mp attach dispenser hose to seal 5 Work front seal lip over front shield flange so lip snaps in Tug around entire seal to check if seated 6 Align clamp spring 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 needle nosed pliers pull clamp into right side seal notch then carefully release spr...

Page 33: ...s failed AQUASTOP hose has tripped 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 faulty If AQUASTOP hose indicator is red replace hose ...

Page 34: ...C 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 heater If not replace it Have an electrician check the house wiring and the wiring to the washer to mak...

Page 35: ...ved Use double sided tape under leveling legs Helpful for washers on slick floors Check dampers Make sure dampers are working properly and all nuts are tightened Check springs Make sure all three springs are properly attached and are free to move Check bottom base panel for damage Bent bottom base panels can cause vibration Check washers for shipment damage Check counterweights Replace any broken ...

Page 36: ...e doesn t start and Check door shows on display Door not closed properly Check for laundry trapped in door Re close door securely Cycle doesn t start and Real Time delay shows on display Specific end time chosen and activated Delay Start None Washer starts automatically after chosen delay Clock can t be set Cycle has started and clock can t be set None Wait until cycle ends to set clock Set clock ...

Page 37: ...ced load Always load large and small clothing together Large clothing items tangled and couldn t be evenly distributed the washer skipped high speed spin Always load large and small clothing together Washer didn t spin and laundry is wet Load too small Add more laundry Problem Possible cause Remedial action Too much detergent Add fabric softener and run Refresh cycle No problem washer added a rins...

Page 38: ...ean drain hose and drain Check door Door not closed properly Check for laundry trapped in door Re close door securely Aquastop activated AQUASTOP float has triggered due to water in washer base Shut off water and check for leak including all connections Soak up water from washer base 5 7 Customer maintenance 5 7 1 Cleaning hose strainers Water hose strainers filters should be cleaned every six mon...

Page 39: ...alanced loads stop during spin cycles after trying 15 times to balance the loads 5 7 3 2 Cause Suds lock oversudsing come from using too much detergent using the wrong kind of detergent not HE or overloading washers trapping suds in clothes 5 7 3 3 Solution Where oversudsing has occurred the washer may need cleaning every 6 months by running it without clothing using a hot water wash and cold wate...

Page 40: ...rease without actuation of heater Heater relay stuck replace control P 16 Damaged heater check heater for short circuit to earth replace heater Er 08 Heating time exceeded heater does not switch off Heater relay stuck replace control P 16 Er 09 No communication between control and inverter Wire harness check wire harness P 04 Er 11 Er 12 Water inlet time exceeded No water within 6min Damaged valve...

Page 41: ...activated in particular order Successively activation of single segments in LCD display 1s 1s 15s 0 3s 8 Buttons and selector switch Test Sequence Buttons By pressing a button the respective LED should light up By pressing the SELECT button the spin sign appears in LCD display The START button is tested by starting and leaving the test program Selector switch When selecting each position on the se...

Page 42: ...e vibration dampened 7 1 4 Drain pump flow rate 18 liters minute 2 5m 8 head and 30 liters minute 1 25m 4 head Pumping height 8 2 4 m max 7 1 5 Heater ratings 120VAC 1000W 8 8A 13 7 15 2 Ω Heaters can heat water up to 174ºF 79ºC depending on cycle used 7 1 6 Water levels cotton cycle empty drum Level 1 1 1 6 gal 4 6 l 1 7 2 5 43 65mm Level 2 heating 4 4 5 gal 15 17 l 4 5 5 1 115 230mm Overflow 15 ...

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Bosch WFVC VISION 16, Repair Instructions

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