702_58300000170749_ara_en_c
Page 68 of 82
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.
Error
Code
Description
Part
DW Symptoms
(seen during wash cycles)
Solution
E:23
Faulty drain pump
D
ra
in
p
u
m
p
Check continuity between drain pump
(m3)
and power
module.
Measure drain pump resistance between any 2 terminals. If
≈ 80.5 Ω @ room temp, replace power module. If not,
replace drain pump.
E:24
Dishwasher won't drain
Remove garbage disposal plug.
Make sure the drain hose is < 150”, includes a 33” high loop
and is installed
≤
50” above the floor.
Unclog house drain line, drain hoses (int. / ext.), drain pump
& backflow valve.
Replace missing or reinstall loose drain pump cover.
E:25
Drain pump is blocked
Remove debris / obstructions from drain pump.
Remove sump drain pump cover and confirm drain pump
impeller is turning freely.
Replace missing or reinstall loose drain pump cover.
E:26
Faulty water switch
W
at
er
sw
it
ch
Water switch runs continually
Check continuity between water switch
(m5)
and power
module.
Measure voltage to water switch
. If ≈ 120V, replace water
switch
. If not ≈ 120V, replace power module.
E:28
Aqua sensor not properly
calibrated
A
q
u
a sen
so
r
Aqua sensor doesn't run during wash cycle
Check continuity between aqua sensor
(b5)
and power
module.
Make sure aqua sensor is clean where it enters the sump.
If electrical connections are good and the aqua sensor is
clean, replace the aqua sensor.