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Appliance guy
Appliance guy, Home Appliance Technician
Category: Appliance
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Experience:  Third generation appliance repair technician with 10 Years service on most High-end appliances.
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how to reset computer on bosch washing machine wfvc6450uc error

Customer Question

how to reset computer on bosch washing machine wfvc6450uc error E17
Submitted: 4 years ago.
Category: Appliance
Expert:  Appliance guy replied 4 years ago.

Er:17= Aquastop error: Aquastop activated,Damaged aquastop switch,Wire harnes Eliminate leaks. check aquastop and check wire harness. P:13 I don't see anything about reseting the controls. But this is what your error code means. Sounds like your pressure switch is faulty or controls are just bad. This is the part number for the pressure switch 648529, cold water aqua stop valve 422244, Hot water valve 422245 and control board 677801(as long as yours is a version /19). The water valves are what the manual is saying to replace and there a pretty cheap place to start.

 

I've included a test program for your washer for you to use if you like to get a better diagnostic. Hope this helps.

 

 

Selecting the test program

Activate test

program:

Set program selector switch to OFF position

Press and hold the two buttons closest to the dial then turn the program selector counter-clockwise to the first program

position. Keep holding the buttons until the display shows P:01

Select test

program:

Push second button from dial to scroll through tests.

-P:01 -> Errors

-P:02 -> Safety test

-P:03 -> Automatic test sequence

-P:04 -> Motor

-P:05 -> Variant (not currently used)

-P:06 -> Display

-P:07 -> Buttons and selector switch

-P:08 -> Pressure sensor (not currently used)

-P:09 -> Pressure switch

-P:12 -> Update (not currently used)

-P:13 -> Valves

-P:14 -> Buzzer

-P:15 -> Pump

-P:16 -> Heater

-P:17 -> Noise (not currently used)

Start test

program:

Press START/PAUSE button

Abort test

program:

Press second button away from program dial or set program selector to Off position

Leave test

programs:

Switch off device

P:01 Errors

- Press Start/Pause to enter error feedback loop

- Press the second button away from the program dial to scroll through errors sequentially; error counts are displayed for

each error

- Error descriptions are given on Page 2 of this document

P:02 Safety test

Sequence: - Water fills to first level

- Heater is turned on for 30 seconds

P:03 Automatic Test

Time/s 4* 6 3 2 3 1 10 1 10 10 90

Valve 2 1 3 1+2

Heater

Water level

L1

Motor

CW rotation

Off

CCW rotation

50rpm

1150

rpm

End of program

Pumping X X X

* depends on pre-filling level and period until level 1 is reached

P:04 Motor

Test: Sequence:

Reversing - Counter-clockwise drum rotation at 50rpm

- Clockwise drum rotation at 50rpm

Spinning /

Pumping:

- Spin speed increases to max. speed

- Unbalance detection is disabled

- Only catastrophic unbaXXXXX XXXXXmits are checked

- Speed reduction is not possible

P:06 Display

All LEDs and all segments of the LCD display are tested

Test program runs automatically

Sequence:

- Backlight switched off (ME99)

- Start LED and options LEDs are activated

- Pause

- Backlight switched on (ME99)

- all LCD/LED segments are activated in particular order

- Successive activation of single segments in LCD display

P:07 Buttons and selector switch

Test: Sequence:

Buttons - By pressing a button, the associated LED will light up

- By pressing the Select button, the spin sign appears in LCD display (ME99)

Selector switch - When selecting each position on the selector switch, the serially numbered positions are displayed in LCD display

(Do not rotate PS via OFF, otherwise program abort)

P:09 Pressure Switch

Sequence:

- Pump is turned on until the drum is empty

- Valve 1 is turned on until first level is reached

- Pressure is displayed

P:13 Valves

- Each valve and valve combination is tested.

- Use the START button to step through the test sequence - each push activates the next valve

- Pressure (water level) is shown in the display

- program runs automatically until level Nmax is reached or second button from program dial is pressed

P:14 Buzzer

The buzzer is activated at maximum volume.

P:15 Pump

The pump is activated and runs a maximum time of 30min unless it is stopped by pressing the second button away from the

program dial.

P:16 Heater

The heater is activated as soon as the water level reaches the heating level and is runs a maximum time of 30min unless it is

stopped by pressing the second button away from the program dial. Water temperature is displayed during the program.

The NTC can be checked during this test

Expert:  Appliance guy replied 4 years ago.
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