34
FAULT
POSSIBLE CAUSES
SOLUTIONS
Condensate
in the boiler
1. Incorrect adjustment of
maximum water temperature in
the boiler
2. Insufficient fuel consumption
1. Adjust the heat stove at a higher temperature. The
maximum temperature of the water in the boiler is
basically 65° C and it cannot be set below 40 ° C or
above 80° C. It is recommended never to adjust the
temperature below 50/55° C in order to prevent the
formation of condensate in the boiler
Adjust pump power at temperature above 50/55°C
2. Contact the Authorised Service Centre
Cold radiators in winter
but the heat stove is
boiling
1. The circulating pump does not
turn because it is blocked
2. Radiators have air inside
1. Release the circulating pump by removing the cap
and turn the shaft with a screwdriver
Check its electrical connections and if necessary
replace it
2. Vent the radiators
No hot water is fed out
1. Blocked circulating pump
1. Release the circulating pump
The heat stove
starts boiling in the
"modulation" stage
that is, when it reaches
the set temperature on
the stove thermostat
1. You have set an exceedingly
high thermostat value
2. You have set an exceedingly
high power for the system
1. Lower the temperature in the boiler
2. Reduce the operating power value
The heat stove goes
into "modulation" mode
upon reaching the set
temperature on the
stove thermostat even
at low temperatures of
the water in the boiler
1. Parameter concerning
maximum flue gas temperature for
modulation to be changed
2. Dirty heat stove: the flue gas
temperature is too high.
1. Set the parameter so that modulation activates at
least at 230° C
2. Clean the shell and tube
Never switch off the heat stove by powering it off.
Always let the extinction stage complete otherwise the structure might be dam-
aged and there might be problems with subsequent ignitions.
Faults and solutions
