Introduction; Purpose Of This Manual; Warnings - Electrolux 6 Series Service Manual

Guide to diagnostics of NEW COLLECTION EWM09312 electronic controls

1 INTRODUCTION

1.1 Purpose of this manual

The purpose of this manual is to explain, simply and schematically, the steps any Technician should take
when faced with the problems indicated by the various alarm codes on appliances with electronic control in
the EWM09312 New Collection series.
Depending on the appliance configuration, the alarms may be entirely or partially displayed to the user:
the latter solution is usually adopted.
The diagnostics system is used by Service Technicians to:
♦ Read alarms
♦ Delete the alarm stored
♦ Test the appliance operation

1.2 Warnings

Any work on electrical appliances must only be carried out by qualified
technicians.
Before servicing an appliance, check the efficiency of the electrical system of the
home using appropriate instruments. For instance: please refer to the
instructions provided/illustrated in the <<metratester>> course on
(http://electrolux.edvantage.net) of the Electrolux Learning Gateway portal.
When the work is finished check that the equipment's safety conditions have
been reinstated, as though it were straight off the assembly line.
In the event of handling/replacing the electronic circuit board, use the ESD kit
(Code 405 50 63-95/4) to prevent electrostatic discharges from damaging the
circuit board, see S.B. Nr. 599 72 08-09 or consult the <<Electrostatic charges>>
course on (http://electrolux.edvantage.net) of the Electrolux Learning Gateway
portal.
This platform is not fitted with an ON/OFF switch. Before you access internal
components, take the plug out of the socket to cut the power supply.
When replacing the heating element, replace it with one that
has the same characteristics (2 thermal fuses) in order not
to compromise the safety of the appliance. Do not
remove/switch the NTC sensors between heating elements.
Always empty the appliance of all the water before laying it
on its side.
Never place the appliance on its right side (electronic control system side): some
of the water in the detergent dispenser could leak onto the electrical/electronic
components and cause these to burn.
When replacing components, please refer to the code shown in the list of spare
parts relating to the appliance.
The resistance values of the components shown in this S.M. are purely indicative
(relating to a sample appliance with new components).
For the actual value of the component, please refer:
to S.B. 599706597 for motors, and for the other components, please consult S.M.
599728903 "Component Characteristics".
T.S.-mdm FCPD-dp Quality tb 5/61 599 74 42-27 Rev.00