Alarm Signals; General Warning - Iberital Expression Two Installations- Und Betriebshandbuch

2.3.3. Alarm signals

A. EXCESS BOILER WATER FILLING TIME
The control unit has a waiting time for when the boiler is fi lling with water.
If the level sensor is not covered with water within one minute, the control unit safety control will stop the water
fi lling process and the motor.
The signal for the control unit alarm is the fi ve LEDs fl ashing simultaneously.
This alarm signal could be caused by a lack of mains water supply to the machine, an obstruction of the water inlet
or a problem with the control unit that is preventing the signal for automatic water fi lling from being sent.
Warning: This alarm signal is always activated during the fi lling process when this immediately follows machine
installation. This is due to the fact that it takes more than 1 minute to fi ll the boiler. When this happens, set the switch
to zero and return it to the fi lling position in order to continue fi lling the boiler.
B. NO IMPULSES FROM THE FLOW METER (5 seconds)
If during feed there are no impulses from the fl ow meter, the control unit will detect it and the LED for the selection
being dispensed at that moment will light up and fl ash, but dispensing will not stop.
This alarm signal is produced due to a bypass of the signal from the fl ow meter cover, or due to a poor connection,
or lastly due to some internal problem in the control unit. If this occurs contact the after-sales service.
C. EXCESS FEED FROM THE FLOW METER
If the coff ee feed time is over 2 minutes, the control unit detects an excess in the normal coff ee feed time.
Coff ee feed will be stopped automatically and the LED for the chosen selection will remain fl ashing.
This alarm signal is either due to an obstruction to the fl ow of water, and the control unit receives slower and more
drawn out impulses than during the normal feed time, or because the coff ee is ground very fi nely or packed in the
fi lter too tightly, causing excess weight, thus preventing the water from fl owing with suitable fl uidity.
D. DEPOSIT LEVEL INDICATORS (only portables machines)
This machine has a system for indicating both minimum and maximum levels, which works as follows:
Minimum Level – When the water tank reaches its minimum level, the control unit cuts the current to the
button pad and the heating element, in order to prevent damage to both the element and the pump due to a
lack of water. At that moment the LEDs on the button pad will begin to fl ash, advising the user that the deposit
must be fi lled.
When we begin to fi ll the deposit manually and the water covers the minimum level sensor, the LEDs will turn off
and the control unit will once more allow the electrical current to reach the element and pump.
Maximum Level – When we are fi lling the tank manually with water and reach the maximum level, the LED on
the non-stop button lights up, indicating that we must stop adding water to the deposit. This LED will remain lit
until the water level is below the maximum level sensor.
GENERAL WARNING: If your machine has a visual display, the respective alarm will be shown on the screen
based on the incident (see the section on visual display operation).
INSTALLATION AND OPERATION MANUAL
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IBERITAL
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