Page C-4 B
SHU/SHI/SHV Dishwasher Quick Check Chart
1
st
Edition/Revision 0-A Tuesday, May 11, 1999
To check Measure If yes If no
!
!!
! Control
module
!
!!
! Run test program
(SHU/I models) and
check if indicator
lights/displays come
on and all buttons click
(and resist a bit when
pressed).
!
!!
! Module may be OK –
more testing may be
needed.
!
!!
! Go to troubleshooting
chart and check
whether module or
another part is faulty.
!
!!
! Rinse aid
dispenser
level switch
(SHU 53/68 &
SHV 48—
models only)
!
!!
! At control module,
measure resistance
between two yellow
wires (2
nd
harness
from right) -- (≈ .4 Ω).
!
!!
! Level switch probably
is OK.
!
!!
! Check to see if rinse
aid dispenser is
empty. If not, turn off
dishwasher and
replace level switch.
NOTE: The following parts can't be serviced from the front of the dishwasher (the dishwasher
must be pulled out and the tank removed or tilted/blocked up to replace them):
• Heater
• Circulation motor
• Aqua sensor ("Sensotronic")
• NTC (temperature probe)/Hi-Limit (185
o
F) thermostat
NOTE: You will need a T20 Torx screwdriver and may need #1/ #2 flat blade screwdrivers
and a pair of needlenose pliers. Many parts can be snapped out without using tools.
NOTE: On SHU/I 43/53/68 models, run test program to identify dishwasher problems (please
see page F-1). The test can run more than one hour (to get temperature up to
150
o
F), but tests can be cancelled to greatly shorten testing time. The test program
allows draining, filling, circulating and heating to be checked more quickly than
running a standard wash cycle.
To use test program for troubleshooting, measure voltages/currents as parts come
on. For example, run heating test and measure current coming into dishwasher – if
current ≈ 11A, Hi-Limit, heater and flow switch are OK. If not, check each part to see
which one failed. This test saves time since you can't get to these parts without
removing the tank and can't run resistance checks from front of dishwasher because
flow switch stays open. Please see page B-1 on using test program to troubleshoot
heater, flow switch and Hi-Limit.
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