Ravelli HR EVO 200 SMART, Инструкция по установке, использованию и техническому обслуживанию

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HR EVO 200-250 SMART
use and maintenance manual
Pag.85
Rev.0 03/07/2019
ENG
TROUBLESHOOTING
Alarm management
Alarms are indicated by an acoustic signal (if activated) and a message on the control panel.
In case of an alarm, shut down the boiler, eliminate the cause and restart the boiler according to the normal procedure described in
this manual.
Every alarm status causes immediate boiler shutdown.
The alarms, with causes and cures, which can appear on the control panel are listed below:
SEGNALAZIONE ANOMALIA CAUSE POSSIBILI RISOLUZIONE
AL 1
POWER FAILURE
The boiler does not start. No power during the lighting stage.
Turn the boiler OFF by pressing the button
P4 and repeat the lighting procedure.
Other reinstatement operations must be
carried out by a service centre.
AL 2
FUME PROBE
Occurs in case of a fume
temperature probe fault.
Probe fault.
Reinstatement operations must be carried
out by a service centre.
The shutdown procedure is
activated.
The probe is disconnected from the board.
AL 3
HOT FUMES
Occurs if the fume probe
detects a fume temperature
above 280°C.
Too many pellets. Adjust the pellet flow.
The shutdown procedure is
activated.
Reduced heat exchange
in the system.
Other reinstatement operations must be
carried out by a service centre.
AL 4
FAN FAIL
Occurs when the fume
extraction fan is faulty.
The fume fan is blocked.
Reinstatement operations must be carried
out by a service centre.
The shutdown procedure is
activated.
Faulty speed control sensor.
No power to fume fan.
AL 5
NO IGNITION
No flame in ignition stage. The pellet hopper is empty. Check pellets in hopper.
The shutdown procedure is
activated.
The heater is faulty, dirty or not correctly
positioned.
Check the lighting procedures.
Pellet load setting incorrect.
Other reinstatement operations must be
carried out by a service centre.
AL 6
NO PELLETS Brazier not fed with pellets.
The pellet hopper is empty. Check pellets in hopper.
The pellet loading gearmotor has to adjust. Adjust the pellet flow
The gearmotor does not load pellets.
Other reinstatement operations must be
carried out by a service centre.
AL 7
THERMAL SAF
Occurs in case of
cutting in of the auger
duct temperature safety
thermostat.
The safety thermostat has detected a
temperature above the setting threshold
due to overheating of the bottom part of the
hopper blocking gearmotor operation.
Check the cause of excessive overheating.
The system is stopped.
Reset the relevant safety thermostat by
pressing the reset button.
AL 8
NO NEG PRESS
In the work stage the boiler
detects a pressure below
the vacuum switch setting
threshold. The system is
stopped.
The combustion chamber is dirty.
Check cleanness of the fume duct and
combustion chamber.
The fume duct is obstructed. Check hermetic closing of the door.
The fire door is not closed. Check closing of the overpressure valves.
The overpressure valves are open-stuck.
Other reinstatement operations must be
carried out by a service centre.
Faulty vacuum switch.
AL 9
INSUFF
DRAUGHT
Appears when the
combustion air flow is below
a certain threshold.
The combustion chamber is dirty.
Check cleanness of the fume duct and
combustion chamber.
The fume duct is obstructed. Check hermetic closing of the door.
The fire door is not closed. Check closing of the overpressure valves.
The overpressure valves are open-stuck.
Other reinstatement operations must be
carried out by a service centre.
Faulty air flow meter.
AL E
WATER
PRESSURE
Occurs when the water
pressure does not come
within the values for correct
operation.
Occurs when the pressure transducer on
the water circuit detects a pressure below or
above the fixed limits.
Check the cause of the problem, restoring the
circuit pressure by bringing it to the normal
operating value.
The system is stopped.
AL A
SAFETY H2O
Occurs in case of cutting
in heating chamber
water temperature safety
thermostat.
The safety thermostat has detected a
temperature above the setting threshold due
to overheating of the heating chamber water
blocking gearmotor operation.
Check the cause of excessive overheating.
The system is stopped.
Reset the relevant safety thermostat by
pressing the reset button.