Electrolux AOS061E Series Service Manual page 28

Electrolux Professional S.p.A.
Ovens Platform Customer Support
Technical Training & Service
Oven Problem
The burners switch
AOS on only for
seconds and
gas
they switch off
Oven is
loading water, water
AOS
in the
gas
overflowing from the
boiler
File: AOS service manual (ENG).008
Analysis
The problem occurs
on all the burners
(cavity and boiler)
few
The problem occurs
then
only on a
burner or on boiler
burner
Water level probe are
not detecting water
always
cavity
Noise on
circuit
©Copyright 2002 by Electrolux Professional
AOS OVENS - Service Manual
(595889300 – ENG)
Probable anomaly
Inversion of Phase-
Neutral
cavity
Detection problem
Water level probes
covered with scale or
other
Broken probe cable
Water level system
on main board not
working
Bad
connection of some
devices inside
ground oven, mainly
switching
TR_Fx or TR_HC are
not connected
ground
Checks/causes
Check cables on main
terminal board
Change the
device with one working
device to check if the
problem persists
Check detection rod and
integrity of relevant cable
Check water level probes
Check continuity of the
cable
Make a short between
X25/26-1 and X25/26-3:
the fast filling valve has to
close; make
between X25/26-2
X25/26-3: the slow filling
valve has to close. If this
is not happening change
main board but before
check also next point
ground
the
the Check the
connections
feeder
to
ignition
a short
and
ground
P.28/40