Fault Codes - Bosch SHI4302 Manual

VII. Component Testing/Test Procedures
VII. Component Testing/Test Procedures

Fault Codes

Fault Codes
DISHWASHER TEST PROGRAM ERROR CODES (on 2-digit digital displays):
0 – No faults
1 – Aqua Sensor (Sensotronic) fault
2 – Heating system fault (heater, Hi-Limit, flow switch, NTC, control module heater relay)
4 – Water filling fault
8 – NTC (temperature sensor) fault
16 – Water switch fault
DISHWASHER CUSTOMER USE ERROR CODES (on 2-digit digital displays):
F – Water filling fault (underfill, overfill or water in the base)
2H – Last wash cycle too long (> 99 minutes). Can be cold inlet water or heating
system fault (heater, Hi-Limit, flow switch, NTC, control module heater relay).
_h – Delay Start feature (not a fault code)
DISHWASHER TEST PROGRAM
ERROR CODES (on lower line of
full text Apexx SH_99 displays):
S3 – No faults
A – Aqua Sensor (red) fault
B – Aqua Sensor (green) fault
E – Water switch fault (no pulses
detected)
F – Water filling fault
G – Water switch fault (won't stop
running)
H – Heating system fault (heater,
Hi-Limit, flow switch, NTC, control
module heater relay)
K – NTC fault (short-circuited or
open-circuited)
xx – Test program step count
(testing done when = 00)
TIP: Top line shows wash cycle &
bottom line shows fault code.
HINT: Dishwasher test programs heat
water to 150ºF, so test programs will
generally run > 20 minutes for incoming
water temperatures ~ 120ºF.
(continued)
(continued)
TIP: Fault codes add up for multiple faults
(e.g. heating + water filling fault = 2 + 4 = 6)
Selecting test
program
Checking fault
codes
Top
Test program
steps
Front
HINT: Open door to select
test program for
integrated models, then close
door to run program.
60
S - - 3 - - - - - - - -
In Cycle 0 - - - - - - -
S3
STEP
S3
S3
HINT: Apexx heater runs
during steps 05 – 08. Press
"-" button to skip to test 05
to measure heater amp draw.
NOTE:
fully- through heaters
heat water ~ 2ºF /
minute.
00
00
Start
00
00
Flow