Italiana Camini LITTLE Instalación Uso Y Mantenimiento página 24

TROUBLESHOOTING
No depression
H1) (trips when the flow sensor detects insufficient combustion air flow)
The flow may be insufficient because the door is open, or does not close tightly (e.g. bad seal), there is an air intake or smoke
extraction problem or the combustion chamber is clogged up.
Check:
- door is closed
- combustion air extraction duct (clean it, taking care not to damage the flow sensor elements)
- flow sensor, cleaning it with dry air (such as that used to clean a PC keyboard)
- stove position: must not be against the wall- combustion chamber position and cleaning (frequency connected with the type of
pellets used)
- smoke duct (clean)- installation (if it does not comply with regulations and has more than 2-3 bends then the smoke outlet is not
acceptable)
- flow sensor threshold (SF in the parameters).
Cold test the sensor if malfunction is suspected. If the value displayed does not vary when the conditions are changed, for example
the door is opened, then the sensor is faulty.
The low pressure alarm may also occur during ignition as the flow sensor starts monitoring 90 seconds after the ignition cycle
starts.
No expulsion
H2) (trips if the smoke extraction revolution sensor detects a fault)
- Check that the smoke extractor is working properly
- Check revolution sensor connection
- Check that the smoke duct is clean
No fire
SF (H3)
(trips when the thermocouple detects that the smoke temperature is lower than a set value, interpreting such as
the absence of flame)
The flame may be absent due to:
- a lack of pellets- too many pellets have smothered the flame
- the maximum temperature thermostat has tripped (this is very unusual since it would indicate an excessive smoke temperature)
No start
AF (H4) (trips if no flame appears or the start temperature is not reached within a maximum of 15 minutes).
Distinguish between the following two cases:
NO flame has appeared
Check:
- position and cleaning of the combustion chamber
- that the combustion chamber receives combustion air
- that the heating element is working- room temperature
(firelighter is required if below 3°C) and humidity.
Try lighting with firelighter
Black-out arrest
H5)
Check electrical connection and voltage drops (the block does not depend on the stove).
Termoc broken
H6) (trips if the thermocouple is faulty or disconnected)
Check connection between the thermocouple and the circuit board.
Check operation during cold testing
H7) Over temp (shutdown due to excessive smoke temperature)
Excessive smoke temperature may be caused by:
type of pellets, smoke extraction fault, blocked duct, incorrect installation or gearmotor "drift".
Err. 1 - Err. 2
The heating stove will not stop, but this message appears on the display. The buffer battery on the pcb must be replaced.
Contact the DEALER.
A flame has appeared but AR is displayed after
AF
Check:
- that the thermocouple is working correctly
- that the start temperature is set within the parameters
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