Troubleshooting Guide - Smeg GW0160 Technical Manual

6.3

TROUBLESHOOTING GUIDE

The alarms described apply to the various models as follows:
"WD" (washer disinfector) series
DRYER SYSTEM PRESENCE (Series 4060 and 4190)
DESCRIPTIO EVENT WHICH TRIGGERS
ID
N
1. Three-phase device:
tripped if the
temperature does not
increase by at least 3°C in
2'.
2. Single-phase device:
tripped if the
temperature does not
increase by at least 0.5°C
in 2'.
Water not
heated
AF:01
within time
allowed.
The In phases which include
temperature thermal disinfection
difference |TL1-TCL| must be < 2°C;
between the otherwise the alarm is
two probes, triggered.
AF:02 "TL1" and The alarm condition must
"TC", is occur for at least 5
more than seconds.
2°C (only
active on
WD series)
This alarm may be
triggered by a number of
different conditions.
a) For each heating phase
controlled, the alarm
condition is:
Probe "TL1"
TL1>T target +5°C for 5
(chamber
sec
temperature
) shows a
b) Heating control
AF:04 reading
failure:
higher than
TL1>cycle max T +5°C for
the actual
5 sec
temperature
.
c) Heating control failure,
if there are no Target Ts
in the cycle:
TL1>T = 60°C + 5°C for 5
sec. (i.e. Tmax=60°C is
assumed)
WHEN THE
ALARM
THE ALARM
OCCURS
Cycle in
progress,
heating phases.
During the
cycle, during
the thermal
disinfection
time, starting
from:
T=T_target
+1°C
With cycle
running.
ALARM MANAGEMENT - DEVICE
RESPONSE
Alarm indication.
if PLA ≤ L1 -> pump-out (MS=ON) for
45";
if PLA > L1 -> pump-out (MS=ON) for
90".
"pump-out 45" -> means: the drain
pump is operated for 45 seconds to
restore the device to conditions of
safety.
Alarm indication.
if PLA ≤ L1 -> pump-out (MS=ON) 45";
if PLA > L1 -> pump-out (MS=ON) 90".
Alarm indication.
if PLA ≤ L1 -> pump-out (MS=ON) 45";
if PLA > L1 -> pump-out (MS=ON) 90".
8
TROUBLESHOOTING
1.Check that three-phase or single-
phase connection is set correctly in
the device's parameters.
2.Check whether any safety
thermostats have tripped and reset
them if necessary.
3.Check that the chamber heating
elements and their control relays are
in good working order.
Other possible causes / checks to be
made:
4. Washing pump jammed;
5. High pressure switch (PAP) contact
not being made;
6. Connection of temperature probe
TL to the PCB (CONNECTOR P1);
7. Connectors to be checked:
- Connection on the heating element
control relay;
- Connection on the PCB
(CONNECTOR P5-9);
- Connection on the PCB
(CONNECTOR P2-2);
1. Check that the probes in the
chamber are clean/in good working
order.
2. Check on the PCB that P11 and P12
are correctly connected.
N.B.: The two probes TL and TCL are
combined in a single unit, so in the
event of a failure the entire
component has to be replaced (TCL is
only installed on WD series devices).
1.Check that TL1 is operating
correctly.
2. Check intake water pressure.
3.Check that the heating element
control relays are in good working
order.
4. Check on the PCB that P11 is
correctly connected.