Bosch SHP65TL5UC Repair Instructions page 67

Error
Description
Code
E:11 NTC or NTC wiring harness
error
E:13
Incoming water too hot (> 75ºC
/ 167ºF)
E:15 Float switch activated
dishwasher runs continually /
can't be turned off
E:17
Faulty water
regeneration valve
E:20 Faulty heat pump
winding
E:21 Heat pump is blocked / clogged
702_58300000170749_ara_en_c
Part DW Symptoms
Not heating
Dishwasher runs without heat pump heating
element running
and Water doesn't fill and drain pump runs continually
softener Water softener doesn't regenerate
motor Wash cycle abruptly ends with Clean / Sanitized
LED's lit
This material is intended for the sole use of BSH authorized persons and may contain confidential and proprietary
information. Any unauthorized review, use, copying, disclosure, or distribution in any format is prohibited.
(seen during wash cycles)
Check continuity between NTC's and power module.
Measure NTC resistances, which should be ≈ 10 kΩ
between terminals 4-5 & 5-6 and ≈ 20 kΩ between
terminals 4-6 @ 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.
Remove water from base.
Make sure float & float switch aren't stuck.
Make sure water inlet valve isn't stuck "open".
Check float switch and wire harness (to power module).
Check continuity between regeneration valve (k1) and
power module.
Check continuity between heat pump (m2) and power
module.
Measure heat pump resistance between any 2 terminals. If
≈ 15.2 Ω @ room temp, replace power module.
replace heat pump.
Remove debris / obstructions from heat pump.
If pump impeller is stuck, replace heat pump.
Solution
If not,
Page 67 of 82