Rev. 02-19 Page 39
USER MANUAL
The EASYSTEAM humidifier in case of anomalies warns the operator through alarm codes and
visual and acoustic signaling.
When an alarm condition occurs, the display icon is activated, the alarm relay is activated (if
configured), the internal buzzer is activated and one of the following alarm codes is displayed.
At any time, by pressing the "silence" key it is possible to inhibit the internal buzzer. Pressing the
SET key resets the acoustic signaling.
Alarms can be of three types, depending on their severity:
-
With automatic reset (the alarm is reset automatically when the problem disappears).
-
With manual reset from keyboard (the alarm is reset automatically).
-
With manual reset by removing power supply to the board
(serious alarm that can not be silenced)
.
Without the console it is possible to identify the type of alarm present by counting the flashes of the
red LED on the Master (e.g. for E3 there are 3 flashes followed by a long pause. Instead, the E0
alarm is signaled with the permanent lighting of the red LED on the Master).
To reset an alarm without automatic reset, in the absence of the display, switch off the power supply
to the electronics. The Do4 output (clamps 7 and 8) is set by default as an alarm relay (second level
variable dO4 = 1).
CODE
POSSIBLE CAUSE/DESCRIPTION
OPERATION TO BE PERFORMED
RESET
OFF
flashing
The enabling consent is absent
On the Master HUM2 check the enabling
consent on clamps 24 and 25 and the
configuration of eventual additional consents of
the digital inputs.
automatic
flashing
without
any
alarm
code
Maximum water level in the cylinder.
The water inside the cylinder has reached the
maximum level sensor and the absorbed current is
within a permitted range (> 0.5A).
(during this alarm there is no acoustic signalling)
At the beginning of a steam production cycle, if the
water inside the cylinder reaches the maximum level
sensor, the cylinder is emptied completely to try to
eliminate the presence of foam (anti-foam cycle) and
then starts again with steam production. After the
anti-foam cycle, if the level is still reached, the water
load is blocked and steam continues to be produced.
Particles in suspension produced by oils or
greases present in the water loading line may
cause foaming that activates the level sensor:
perform some complete washes of the cylinder
with manual water discharge, immediately after
the full load.
A water conductivity above 1300
S/cm may
cause foaming: increase the frequency of
deconcentration discharges by modifying
parameter S2.
Check that there is no water under the cable-
carrier circular tube, on the top of the cylinder.
This, if present, could penetrate the circular
tube and create a false contact on the level
sensor: dry everything carefully.
automatic
permanent
without
any
alarm
code
Permanence of the maximum level of water in the
cylinder.
The maximum water level sensor in the cylinder has
been activated continuously for more than one hour,
after an anti-foam cycle.
This alarm blocks the production of steam until it is
acquired (pressing the Silence key).
Use the same operations as indicated for the
"Maximum water level in the cylinder".
manual
En
No connection
between the
NANO EasySTEAM
display and the Master HUM2 electronics
Check connection on J1 connector and of
connection cable.
automatic
EE
EEPROM ALARM
An error has been detected in the EEPROM memory
(the outputs are all disabled, except for alarms)
Switch the appliance off and on again.
If the problem persists, contact the technical
assistance service.
manual
CHAP. 6 DIAGNOSTICS
