Operation Manual

EN
page 32
B1 BOILER FILLING FAILED:
Cause:
Themachineboilerll-upwasnotachievedinthemaximumforeseen5min.timelimit.
Check:
1. The correct water supply from the piping network.
2. Ifthesolenoid-valvelterisclogged.Cleanthelterifneeded.
3. SolenoidvalveY5 failure. Change the solenoid valve.
4. Theboilerpressureswitchfailed.Sostituireilpressostato.Replaceifneeded.Before
replacing the pressure switch, drain the boiler completely.
5. Circuit board failure. Change the circuit board.
B2. BOILER PROBE FAILED:
Cause:
The circuit board does not detect the boiler sensor.
Checks:
1. Check the electrical connection between circuit board and sensor.
2. Check if the sensor works properly.
3. Check that the sensor did not overheat.
B3. BOILER HEATING ALARM:
Cause:
The factory-set boiler temperature was not achieved in the maximum foreseen 30 min. time
limit.
Checks:
1. If the boiler heating element heats properly.
Check the integrity of the electrical heating element.
Check the electrical connection.
Check the boiler coil-switch (remote control switch) protection.
 Checktheboilersafetythermostat.Shouldthethermostatbeoverheated,pressthereset
buttontocheckitsefciency.Replaceifneeded.
2. Circuit board failure. Change the circuit board.
B4. RINSING FAILED:
Cause:
The rinse water was not used during the rinse cycle.
Check:
1. Checkthefreerotationoftherinsepump.Shouldtheimpellerbeblocked,rotatethe
motor shaft manually, by a screw-driver (see pict. 4).
2. Rinse pump damaged. Replace if needed.
3. Circuit board failure. Change the circuit board.