39
installation.
Er10 Water pressure sensor
Occurs if the water pressure
exceeds the value of 2.4 bar
Check the auto-fill valve, it
may be blocked.
The installation does not have
an expansion vessel capable
of accumulating the
expansion of water by
heating it.
When the water reaches
75ºc, the pressure must not
rise by more than 0.5 bar.
To check for the lack of
expansion capacity, set
the pressure with the
boiler cold at 1.2 bar,
turn on the boiler and
when it is at 75ºc check
the pressure. If it rose
by more than 0.5bar,
the lack of an additional
expansion vessel is
confirmed.
Er11 Internal clock error
Incorrect day and time due to
prolonged absence of power
supply
The boiler has been
disconnected from power for
a long time and the internal
battery has discharged, losing
the programming.
Call a technician.
Er12 Smoke temperature sensor
Misfire
The smoke temperature did
not reach the ignition
setpoint (+/-50ºc) and after
this value it did not rise by
another 5ºc.
Lack of pellets in the hopper
Blocked auger
Pellets with high moisture
content
Brazier obstructed
End of life igniter
Check the level of
pellets in the hopper,
clean the burner and
check the resistance
against the burner
Er15 Lack of supply voltage 230V,
A power failure has occurred
Lack of electricity
Check outlet, electrical
panel.
Er16 RS485 communication error
Occurs when communication
between controller and panel
fails
Lack of communication
between panel and controller
Check plug or cable.
Reset and reconnect.
Er17 Air flow meter error
Occurs if the chimney is
clogged
Check sensor connections
Check chimney, possible
obstruction.
Open ash door or drawer
Er18 Pellet level sensor
It only occurs if the
equipment is equipped with a
pellet level sensor
Pellet level does not cover
sensor
Hopper without pellets
Refill hopper
Er23 Boiler sensor, DHW open
circuit.
The boiler is programmed to
read one or more of the
following sensors and has not
detected them:
Boiler temperature
DHW temperature
Check sensor
connection
In case the boiler does
not have DHW, it must
be deactivated by
changing the following
parameters P26=5 and
P83=0
Er39 Air flow/mass sensor
Damaged sensor
Change sensor
Call a technician.
Er41 Air flow/mass sensor
During the Check Phase Up
the boiler makes the exhaust
capacity diagnosis.
Minimum reference value not
reached.
Possible obstruction of the
chimney or air intake.
Open ash door or drawer
Clean the chimney.
Check door seal and ash
drawer
