E04
Overflow
Do not run WM till enviromental conditions in
product specifications are met
Refit loose sockets/connectors, replace cable
group if connectors/sockets are worn
Replace pressure
switch/sensor hose
Replace pressure
switch/sensor
Are environmental
conditions are OK?
Check PCB socket
connections. Is thee any
loose socket/connector?
Similarly check pressure
switch/sensor and valve
connectors. Is it loose?
Is there any deformation
through pressure
switch/sensor hose?
Test pressure switch/sensor
component as explained in
service manual. Is pressure
switch/sensor component OK?
Replace PCB
NO
YES
Environmental conditions:
-Voltage range should be in as specified
in instruction book.
-Water pressure should be as specified
in instruction book.
-WM should be grounded properly.
-There should be enough ventilation
space from ground.
-Other environmental specifications and
requirements should be met which are
mentioned in instruction book of WM.
Replace valve
Does WM intake water
when power is off?
Summary of Contents for D4 Series
Page 1: ...Manuel de service Séries D4 ...
Page 37: ...9 Wiring Diagram ...
