Merloni Elettrodomestici
DISHWASHER EVO3
Service manual
EN
03-05-20/0
51-54
Language Issue/Edition
Page
• if C (closed), stops filling and just washes
• if O (open), fills and washes until water level threshold reached or up
to a max. of 8 litres
If the switch is still open at 8 litres, the dishwasher shows the water level alarm.
Probable cause of malfunction: faulty switch or cables disconnected/inverted.
9. WASH MOTOR switched on for 1 minute, ready to fill water if pressure
switch contacts open
• never more than a max. of 8 litres; more than this and the DW shows the
water level alarm.
Probable cause of malfunction: pressure switch faulty or cables
disconnected/inverted.
10.WASH MOTOR, HEATING ELEMENT, DIRECTIONAL CONTROL VALVE on
for 10 seconds
11.Check HIGH PRESSURE sensor status 5 seconds (top and bottom racks
wash), (must be open)
• if the HP sensor stays closed, the DW will show the filter cleaning alarm.
Probable cause of malfunction: HP sensor faulty.
12.Search duo wash parameters, wash only top rack
13.Check HIGH PRESSURE sensor status 15 seconds, (upper rack wash only)
(must be closed)
• if the HP sensor stays closed, the duo wash will not work, the DW will register
an alarm. Probable cause of malfunction: duo wash module faulty, cables
inverted. closed, the duo wash will not work, the DW will register an alarm.
Probable cause of malfunction: duo wash module faulty, cables inverted.
14.Search duo wash parameters, wash upper and lower racks
15.Water heated to 55°C
• if the heating element fails to heat up or the NTC does not register the
temperature, the dishwasher will show the temperature timeout alarm.
Probable cause of malfunction: heating element disconnected or faulty,
or NTC disconnected or faulty, or timer relay jammed
16.Drain O +15 seconds
• if the switch does not open in a max. 4 minutes, the DW will show the
drain timeout alarm.
Probable cause of malfunction: drain pump disconnected or faulty,
pressure switch faulty/cables inverted.
17.….START AUTOTEST CYCLE…… CONTINUE LONG TEST CYCLE…
18.2 litres filled via the TURBINE between rinses
• if the timer does not receive the signal from the turbine but water is
being filled, when the between-rinse pressure switch reaches its threshold
(1.2 litres), it switches the wash motor on and fills water until the
in-cycle pressure switch threshold is reached, for a maximum of 153
seconds from energization of the solenoid valve.
Probable cause of malfunction: turbine disconnected or faulty.
19.WASH MOTOR switched on