Ariston 60 cm Service Manual page 28

FAULT CAUSE
F1 Compressor relay sticking
F2 Compressor relay open
F3 Faulty power board
F4
Freezer fan unit does not run
Electronic damper does not
F5
close/open
Triac driving defrost heating ele-
F6
ment short-circuit
No power draw of defrost heat-
F7
ing element
Incorrect switching of solenoid
F8
valve
File setup error (EEPROM not
F9
programmed or faulty)
Service Manual
NEW ARISTON 60 cm PLATFORM
CORRECTIVE ACTIONS
- Check for water leaks that may affect connector J1 causing the relative contacts to
short;
- Check motor terminal board (possible problems due to incorrect connection which may
cause short-circuits);
- Renew motor;
- Renew PCB.
- Check effi ciency of contacts on connector J1 on the PCB;
- Check on wiring connector J1 between pins 3 and 2 for an impedance value that is
compatible with the value given in the specifi c table.
- Check that the compressor is not stopped due to overtemperature conditions (thermal
cutout open)
- Renew motor;
- Renew PCB.
- Renew PCB.
- Check effi ciency of contacts on connector J6 on the PCB;
- Check impedance on wiring connector J6 between pins 2 and 1 checking that the value
is compatible with the value given in the relevant table;
- Check correct connection of the freezer fan on the freezer compartment wiring junction
box;
- Renew freezer fan unit;
- Renew PCB.
- Check effi ciency of J3 connector contacts on PCB;
- Check effi ciency of connection of electronic damper at foam protected connector
behind multifl ow;
- Renew electronic damper;
- Renew PCB.
- Check effi ciency of contacts on connector J6 on the PCB;
- Check condition by checking for impedance on wiring connector J6 pins 3 and 4;
- Check connections of the defrost heating elements and possible short circuits on the
freezer compartment wiring junction box;
- Renew heating element.
- Renew PCB
- Check effi ciency of contacts on connector J6 on the PCB;
- Check for continuity of the defrost heating element on pins 3 and 4 of connector J6,
ensuring that the impedance value read is compatible with the value given in the relevant
table;
- Check for correct connection of the defrost heating element and the drip tray heating
element on the freezer compartment wiring junction box;
- Check the correct impedance value on the defrost heating element across the heating
element terminals;
- Check that the fuses have not blown;
- Renew defrost heating element;
- Renew PCB.
- Check effi ciency of contacts on connector J8 on the PCB;
- Check for impedance on wiring connector J8 pins 1 and 2 and ensure that the value
is compatible with the value given in the relevant table;
- Check correct switching of the solenoid valve With the compressor running, check that
the solenoid valve switches when the refrigerator compartment is set to OFF.
- Renew solenoid valve;
- Renew PCB.
- In the case of a production PCB, renew PCB and EEPROM;
- In the case of replacement PCB and EEPROM, check correct insertion of EEPROM in
PCB socket.
Edition
2006.06.15
E
Language
English
N
28