Circulation System - GE EDW4000 Technical Service Manual

Dishwasher Doesn't Drain
Check for clogged:
inlet cover
sump
drain pump
drain pipe
one-way check valve
(in drain pipe)

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
chapter). The pump pushes water up
Mode
Attempt
to activate drain
pump using service mode
(refer to Service Mode
chapter).
YES
Pump activate?
Check pump for open/
shorted motor winding or
for stalled/clogged
Service
L1 Output from J2-5
DRAIN PUMP
J2-5
NO
Is L1
voltage
present at pump?
Note: Perform this test
with wiring connected
and
YES
pump under
load.
Check for open circuit between
control module and pump or
between pump and door interlock
switch. If circuits OK, replace
condition.
Circulation
Main Conduit
Clip
Fine Filter
– 18 –
INTERLOCK
RX WR
M
NO
30
NO
control module.
Pump
Inlet Cover
Inlet Cover
under inlet cover)
under inlet cover)
Hub
DOOR
WX
N
COM
Sump
(sump filter is
(sump filter is