Bosch SHI 4302 - Section 4

B Page F-1C
SHI/U 43/53/68 Dishwasher Test Programs
1
st
Edition/Revision 2 Tuesday, June 27, 2000
TEST* TIME NOTES
Draining 30 seconds
Aqua Sensor
("Sensotronic") Calibration
65 seconds Not on SHI/U 43-- models
Filling
Until Water Level Switch (f1) closes
Can't skip this test
Heating & Circulating Until water temperature reaches 150
º
F (65
º
C) Dispenser actuator comes on
Draining 60 seconds
* To skip a test: SHI/U 43 models Press SCRUB WASH button.
SHI/U 53/ 68 models Press REGULAR WASH button.
SHU 53 MODELS
To start test program, press and hold both SCRUB WASH and DELICATE/ECONO program buttons, then turn unit on by
pressing ON/OFF button. Initially, control module version # will be displayed (e.g./ “21” = version 1 with jumper). When
wash program buttons are released, lights above them will flash. To end test program, press ON/OFF button.
To check each program indicator light, press its button. To check Cycle Countdown display, Refill Rinse Agent light and
REGULAR WASH light, press REGULAR WASH button (press Delay Start button to test Cycle Countdown display
alone). Cycle Countdown display will show "88" when REGULAR WASH button is pressed and "8h" when Delay Start
button is pressed.
To start testing, press both the SCRUB WASH and DELICATE/ECONO buttons a second time. When testing has ended,
Cycle Countdown display will show a fault using codes below. If more than one fault occurs, code numbers will be added
together, (e.g./ “6” = faults 2 + 4).
0 = No faults detected 2 = Heating fault 8 = NTC (temperature sensor) fault
1 = Aqua Sensor ("Sensotronic") fault 4 = Filling fault F = Filling fault (display occurs during wash, not test)
To check for heater, high limit or flow switch problems, start testing until heating starts. Using a meter with a current coil,
measure current going into dishwasher. If current is ~ 11 A, then heater, high limit and flow switch are OK. If current stays
at ~ 1.5-2 A, then heater, high limit or flow switch are faulty.
If water level switch (f1) has failed (opened), display will show fault code "4" and unit will continually fill and drain where
testing won't be completed. If flow switch (e5) has failed (opened), display will show "0", water won't heat (to 150
º
F) and
water won’t stop circulating. If NTC probe (f2/f4) has failed (opened), display will show fault code "8" immediately and
testing will end shortly after water has started circulating.
SHU 53 models program buttons & indicator lights:
Cycle Countdown
Power
Scrub
Plus
Scrub
Wash
Regular
Wash
Delicate
/Econo
Rinse
& Hold
Refill
Rinse
Agent
21
!
!!
! !
!!
! !
!!
! !
!!
! !
!!
! !
!!
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!!
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!!
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Delay
Start
Hours
Cancel
Drain
See page F-1
A
for SHI/U 43
models, F-1B
for SHU
4322/4326
models and
page F-1D for
SHI/U 68
models