18
Thermostat for general safety ALARM DEP NO
Pressure switch ALARM DEP NO
In case of irregularities of the operation, the following procedure is activated:
1) The system for automatic pellet filling switches off
2) The smoke discharge fan operates with a full maximal capacity for maximum twenty minutes.
Before switching the stove once again, wait that it gets completely cold and then press the button „4“ (on/off).
If the stove is not cold, the message „ AttE“ is shown as in figure 23.
Figure 23
9.4.1. Alarm dEP no (pressure alarm – alarm of the pressure switch)
It occurs when irregularities occur related to:
The flue pipe hardly pulls which causes poor, insufficient pressure.
If the alarm continues occurring, check whether the stove of the flue should be serviced.
The smoke pressure switch controls the negative pressure in the stove chamber due to improperly closed door or ash
box, or due to some obstacles in the smoke outlet. In this case, the display shows the message ALAr dEP no
(Figure24), the smoke motor functions maximally and then it switches off after 10 minutes.
Figure 24
9.4.2. Alarm ALAr Sond (alarm of the probe for flue gases)
It appears when an error occurs in the smoke detection probe, when the probe is broken or it is not connected.
The stove begins the switching off procedure while the alarm is switched on.
Alarm of the smoke probe: if some malfunction occurs at the smoke probe, the display shows the message "SOND
FUMI ALAR", and in this case the fan and the smoke suction device function with full power.
Figure 25
9.4.3. Alarm ALAr hot (alarm for excessive smoke temperature)
It occurs when the probe for flue gases indicates too high temperature (mote than 280ºC)
The stove begins the switching off procedure while the alarm if on.
Figure 26
9.4.4. Alarm of the chamber: this alarm appears when the temperature of the stove chamber is too high and then the
message "HOT TEMP ALAR" appears. In order to prevent the occurrence of this alarm to certain temperature limits,
the smoke suction device and the exchanger must function at their maximum, and the fuel pellets are minimally
inserted. In order to return to normal operation, press the button 4, for 3 seconds until the boiler returns back to ON
(switched on) state.
9.4.5. Alarm for overheating of the chamber or temperature of the snail distributor for pellet supply: It occurs if
the main safety thermostat from 80°C or 180°C reads a temperature higher than the allowed. The message „ALAr
dEP no“ appears (Figure 27) and the system stops. This alarm appears when the temperature of the chamber or the
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