Bosch WFVC VISION 16 Repair Instructions page 41

dr:23 Over temperature of heating sink Too heavy load,
Mechanical friction
dr:24 Line frequency range Line frequency out of inverter
operating range
dr:25 A/D converter error Damaged micro-controller
dr:26 Temperature warning
dr:27 DC voltage warning
dr:28 Speed follow warning
* Er:... -> Errors generated by control unit
Dr:... -> Errors generated by motor unit
3. Safety test
Sequence: - Wait until water intake is completed
- Set cycle selector knob to OFF position, within 30s after heater turned on
- Insert mains plug on dryer into safety testing device
- Set cycle selector knob to any position and check that the door is locked
- Activate test program for safety testing device
- Run the test program
- Program ends independently
4. Automatic test program
Time/s 4* 2 4 3 4
Valve 2 1+2 1
Hea ter
Water level
L1
Motor 50rpm
Right rotation
Off
Left rotation
Pump en
* depends on pre-filling level and period until level 1 is reached
5. Motor
Test: Sequence:
Reversing - Anti-clockwise drum rotation at 50rpm
- Pause
- Clockwise drum rotation at 50rpm
- Pause
Spinning / - Spin speed increases to max. speed
Pumping: - Without detection of unbalance
- Disaster inquiry only
- Speed reduction is possible
6. Variants
- Spin speed and button variance is selectable
702_58300000143607_ara_en_a
- check load, P:04
- check oscillating
system,
- check gasket
- check line frequency P:04
- change inverter P:04
P:04
P:04
P:04
Display not active
P:01 is shown
3 4 1 1 1 20
2 2
1150rpm
X
Duration (approx.):
6s
3s
3s
1s
7. Display
All LEDs and all segments of LCD display are tested
Test program runs automatically
Sequence:
- Backlight switched off
- Start LED and options LEDs are activated
- Pause
- Backlight switched on
- all LCD segments are activated in particular order
- Successively activation of single segments in LCD display
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 selector switch, the serially
numbered positions are displayed in LCD display
(Do not rotate PS via OFF, otherwise program abort)
9. Update
Before activating test mode, make sure that the PC is connected to the serial interface,
otherwise program abort is possible by setting PS to OFF position only.
With this test mode, an update of process tables, process constants and
display texts is possible
90
10. Valves
- The single valves and their combinations are tested.
- Step on the next test sequence with START button
- Pressure in digit is shown in display
- program runs automatically until level N
START is pressed
11. Buzzer
The buzzer is actuated with maximum loudness.
X
12. Pump
The pump is actuated and is running a maximum time of 30min unless it is
not ended before by pressing the MENU button.
13. Heater
The heater is actuated as soon as water level equals heating level at least
and is running a maximum time of 30min unless it is not ended before by
pressing the MENU button.
The NTC has to be checked during test program with respect to short-
circuit and interruption.
14. Noise
This program is used in the factory for specific measurement of washing-
and spinning noise. an not important for customer service.
The following noise sources are actuated:
Spinning, Washing, Pumping, Inletting of water
Duration (approx.):
1s
1s
15s
0,3s
is reached or button DELAYED
max
actual pressure value is displayed
actual temperature value is displayed
the TARGET- and ACTUAL speed is displayed.
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