Bosch SHE4AM12U Repair Instructions page 46

DW Symptoms Error Code Display
(seen
during wash cycles)
LED is flashing & dw can't E:06 defective door latch
operate
No heating E:08 heat pump detects low
water level
E:09 open heating element
circuit
E:12
resistances not balanced
E:10 not enough heat
E:11 NTC or NTC wiring
harness error
E:13 water too hot (> 75ºC /
167ºF)
Water doesn't fill and E:15 float switch activated
drain pump runs an d
continually contin
702_58300000130262_ara_en_c
Error Code LED's --
(from cs
Active / Clean / Sanitized
test program)
OR
heating element
dishwasher runs
ually
Solution
Check continuity between door switch (e1) and power module harness
connector.
Measure voltage across door latch connector. If > 10V, replace door
latch. If < 10 V, replace power module.
Check water supply & repair any leaks.
Check continuity between water inlet valve (s2) and power module
harness connector.
Measure voltage across water inlet valve terminals (s2) during step 1 of
customer service test program. If ≈ 120V, replace water inlet valve. If not
≈ 120V, replace power module.
Check continuity between heating element (r1) and power module
harness connector.
Measure heating element (r1) resistance, which should be ≈ 5Ω between
terminals 1-2 & 2-3 and ≈ 10Ω between terminals 1-3 @ room temp. If
not, replace heat pump. If so, replace power module.
Decalcify heater with appropriate cleaner.
If problem persists after heating element has been decalcified, replace
heat pump.
Check continuity between NTC and power module harness connector.
Measure NTC resistance, which should be ≈ 10kΩ between terminals 1-
2 & 2-3 and ≈ 20kΩ between terminals 1-3 @ room temp. If not, replace
heat pump. If so, replace power module.
Make sure water inlet temp is < 75ºC / 167ºF.
Remove debris / obstructions from drain pump / drain hose.
Make sure float & float switch aren't stuck.
Page 46 of 50