Electrolux Professional 603877, Installation And Operating Manual, Page: 39 / 46

39
Anomaly Anomaly type Description Possible causes Actions
T_WT Blocking machine Working Top PT1000
sensor mal-function
(disconnected or in
short circuit). PT1000 WT not properly
cabled;
PT1000 WT failure.
• Check if burned spots are
visible in the centre of the
glass;
• Call Service and report the
above findings.
T_UP Blocking machine Upper Plate PT1000
sensor malfunction
(disconnected or in
short circuit). PT1000 UP not proper-ly
cabled;
PT1000 UP failure.
Check if any visible damages
at the flexible tube of the lid;
Call Service and report the
above findings if any.
ZC_FAIL Blocking machine ZC signal absent.
Lack of power to
heaters and
magnetrons. KLX3 open (components
over temperature);
J18 on board
disconnected;
KM malfunction;
RL5 on ACU malfunction:
faulty ACU. Check if the machine is
exposed to external heat
sources;
Call Service and report the
above findings.
LID_BLK Blocking machine Locked lid: the
machine cannot open
the lid.
• The lid is blocked;
• The lid is intentionally
either lowered for
slightly warming up the
sandwich or kept
closed at the end of the
cooking cycle for
increasing the heating
of the sandwich;
Lid unlocking group dis-
connected/fault/dirt/
gripped.
• Turn OFF and ON the appli-
ance. Lid should unlock;
• Verify if the handle can
move freely;
• Check if there are food
residuals or other foreign
bodies on the pushers and
to check if there is anything
hindering the movement of
the handle;
Try to open handle and gently
force open the lid. Either clean
or lubricate the pushers.
If the problem persists, call
Service.
MAG1 Only logged: no
warning Possible high voltage
electrical circuit
malfunctioning. MAG1 signal absent;
HV Capacitor C1 fault;
Diode box D1 fault;
MAG1 fault;
If MAG1 & MAG2 check
KS2.
MAG2 Only logged: no
warning Possible high voltage
electrical circuit
malfunctioning. MAG2 signal absent;
HV Capacitor C1 fault;
Diode box D1 fault;
MAG2 fault;
If MAG1 & MAG2 check
KS2.
R_WT Blocking machine Working top heater
malfunction: no cur-
rent on the heater Triac TY2 fault on ACU;
Heater not properly
cabled;
Heater fault. Check if possible to feel heat
from the glass (WITHOUT
TOUCHING IT!!!)
R_UP Blocking machine Upper plate heater
malfunction: no cur-
rent on the heater. Triac TY1 fault on ACU;
Heater not properly
cabled;
Heater fault. Check:
1. If possible to feel heat from
the upper plate (WITHOUT
TOUCHING IT!!!);
2. If any visible damages at
the flexible tube of the lid;
Call Service and report the
finding.
WT_TO Blocking machine The working top heat-
ing element has
current, but doesn't
heat enough. Heater damaged. Try to reset the Error by switch-
ing Off/On: if Off/On
unsuccessful, call Service.
UP_TO Blocking machine Upper plate heater
element has current,
but doesn't heat
enough. PT1000 temp. sensor not
in contact with heating
plate;
Heater damaged. Try to reset the Error by switch-
ing Off/On: if Off/On
unsuccessful, call Service.