Bosch Ascenta SHE4AM12U Istruzioni per la riparazione - Pagina 45
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6.3.6
Troubleshooting chart
DW Symptoms
Error Code Display
(seen
during wash cycles)
No errors
E:00
Wash cycle abruptly ends
E:01
with Clean LED glowing
switching defect
dw
runs
without
OR
heating
E:02 defective working relay
OR
E:03 defective heating relay
(power module problem)
Wash cycle abruptly ends
E:20
with Clean LED glowing
resistance is wrong
E:21 heat pump is blocked /
clogged
(heat pump problem)
E:23 drain pump winding
(drain pump problem)
resistance is wrong
E:24 dw won't drain
E:25 drain pump is blocked or
sump drain pump cover is
missing
702_58300000130262_ara_en_c
Error Code LED's --
(from cs
Active / Clean / Sanitized
test program)
pump
starting
/
OR
heat
pump
winding
OR
OR
OR
OR
Solution
No errors.
Replace power module (located in base).
Check continuity between heat pump (m2) and power module harness
connector.
Measure heat pump resistance between any 2 terminals. If ≈ 13Ω @
room temp, replace power module. If not, replace heat pump.
Remove debris / obstructions from heat pump.
If pump impeller is stuck, replace heat pump.
Check continuity between drain pump (m3) and power module harness
connector.
Measure drain pump resistance between any 2 terminals. If ≈ 90Ω @
room temp, replace power module. If not, replace drain pump.
Remove garbage disposal plug.
Make sure drain hose is < 150" and includes a 20" high loop.
Unclog house drain line.
Remove debris / obstructions from drain pump.
Remove sump drain pump cover and confirm drain pump impeller is
turning freely.
Make sure sump drain pump cover is seated correctly (see Section
6.3.5).
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