ALARMS AND TROUBLESHOOTING
ALARM MESSAGE CAUSE ACTION
Alarm Ignition failed The boiler didn’t ignite
during cold start.
Pellets haven’t reach up to the
ignition hole in the burner cup.
Alarm High power mode No flame during High power
mode.
Control and/or clean the flame
sensor.
Alarm Low power mode No flame during Low power
mode.
Control and/or clean the flame
sensor.
Alarm fan tachometer No tacho pulses detected
from fan1.
Control the fan1 and the
cabling.
Alarm Max time external
feeder
The external feeder has been
operating longer than the
maximum time.
Check the pellets in the
storage. Check the external
auger connector. Control the
level sensors in the burner.
Alarm Max time internal
feeder
The internal feeder has been
operating longer than the
maximum time.
Control the level sensors in
the burner.
Alarm Ignition element
broken
The ignition output is not
consuming any current.
Check the ignition element
connections and/or the
element resistance.
Alarm ESBUS
communication
No communication from
CRB122 to boiler.
Check internal and external
cabling.
Alarm power card
communication
No communication between
RPi and power card.
Check connector between
RaspberryPi and power card.
Alarm Lost database No data in the database. Try to reboot the boiler by pres-
sing the boiler control switch
in 12 s, wait 12s, make the
boiler powerless and power it
up again.
ALARM MESSAGE CAUSE ACTION
Alarm Safety circuit open The safety circuit to the cut
out thermostat is open.
Control why the boiler has
been overheated.
Lower boiler temperature.
Check cabling to cut out
thermostat.
Alarm Low SD card
memory left
The SD card is nearly full. Contact your nearest
Ariterm dealer.
Alarm No SD card
memory left
The SD card is full. Contact your nearest
Ariterm dealer.
Alarm Maintenance
time 1 exceeded
The total operating time of
the external auger is longer
than the maximum time
alarm1 settings.
Clear the maintenance
alarm 1 in the maintenance
menu.
Alarm Maintenance
time 2 exceeded
The total operating time of
the external auger is longer
than the maximum time
alarm 2 settings.
Clear the maintenance
alarm 2 in the maintenance
menu.
Alarm Oxygen sensor
failure
The oxygen sensor is faulty. Contact your nearest
Ariterm dealer.
Alarm Pellet storage low Low pellets level in the
storage.
Clear the alarm and fill the
storage with pellets.
Remember to add pellets in
the “Pellet store” menu
as well.
Alarm Boiler temperature
limit reached
The boiler is almost
overheated.
Lower the stop temperature
or increase the speed of the
charge pump when using
tank mode.
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