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Check for clogged:
inlet cover
sump
drain pump
drain pipe
one-way check valve
(in drain pipe)
YES
NO
Check for open circuit between
control module and pump or
between pump and door interlock
switch. If circuits OK, replace
control module.
NO
Check pump for open/
shorted motor winding or
for stalled/clogged
condition.
YES
Attempt
to activate drain
pump using service mode
(refer to Service Mode
chapter).
Pump activate?
Is L1
voltage
present at pump?
Note: Perform this test
with wiring connected
and
pump under
load.
Circulation System
The circulation system consists of the following
components:
• Inlet Cover
• Fine filter and sump filter
• Sump
• Circulation pump
• Hub
• Lower spray arm
• Main conduit
• Middle spray arm
• Upper Spray arm
The inlet cover prevents large particles from
entering the sump. The fine filter (metal) and
sump filter (plastic) prevent fine particles from
entering the circulation-pump part of the sump
(water entering the drain pump is not filtered by the
fine filter or by the sump filter). The circulation
pump is controlled by the control module and can
be activated using service mode (refer to
Service
Mode
chapter). The pump pushes water up
Dishwasher Doesn’t Drain
Circulation
Pump
DRAIN PUMP
J2-5
M
RX
WR
30
NO
N
COM
WX
DOOR
INTERLOCK
L1 Output from J2-5
Sump
Clip
Main Conduit
Hub
Fine Filter
Inlet Cover
(sump filter is
under inlet cover)
Inlet Cover
(sump filter is
under inlet cover)