ARITERM SWEDEN AB • ARITERM OY • Asennus ja käyttöohje • Installation och driftanvisning • Installation and operating instruction • 19.11.2009 • 18/32
Alarm message / Cause Check that Procedure
Alarm pellet shortage
The level switches have not detected
pellets in the burner upper connection
even if the external auger has run for
four times its operating time.
1. there are pellets in the store.
2. pellets have not accumulated in the
drop pipe.
3. the level switches function well.
4. the inclination of the drop pipe is not
too steep (over 45º) or too gentle.
5. the motor shaft rotates the auger
and the external auger motor func-
tions well.
1. Add pellets and drive the ex-
ternal auger until the pellets ar-
rive at the upper connection of
the burner. Perform start-up.
2. Adjust the operating time of
the external auger according to
the adjustment example
3. Check the operation of the
level switches from the Burner
Adjustments menu. The value
should decrease below the one
in brackets. After this, the ex-
ternal auger should turn on.
When the auger stops, the value
should be 99%.
Alarm blockage
The flame detection system has not de-
tected any flames for 10 minutes and
the level switch has not asked for more
pellets. In other words, the burner head
has run out of pellets and the flame has
gone out.
1. the level switch eyes are clean (dust).
2. the level switch functions correctly.
3. the burner wheel is fastened and the
chain is in good state.
4. pellets arrive at the combustion
vessel.
5. the flame detection sensor func-
tions well.
6. the feeding auger, blocking feeder
and auger burner rotate and are not
blocked due, for example, to a foreign
object.
If there is no fuel in the upper
connection of the burner, check
the cable connections of the
level switches. If this does not
help, wipe the level switches
clean. If the external feed of the
burner does not start in spite of
this or the level switches must
be cleaned all the time, they
may be defective and the instal-
ler should have a look at them.
A possible foreign object in the
pellet fuel must be removed if it
gets stuck in the blocking feeder
or in one of the feeding augers.
Remove the upper connection
and take out the possible fo-
reign object from the feeding
auger or blocking feeder.
ALARMS AND TROUBLESHOOTING
Alarm message / Cause Check that Procedure
Alarm heat sensor
The boiler water temperature sensor is
detached
the boiler sensor is in place and the wi-
res are intact.
If the boiler sensor wire is not
connected or is broken, the sen-
sor shows the reading 0°C and
the alarm is activated.
Alarm max flue gas
The flue gas temperature has exceeded
the alarm limit.
1. the bypass damper of the boiler is
in place.
2. the flue gas sensor is in the flue gas
channel.
1. Put the bypass damper in
place
2. Place the flue gas sensor in
the flue gas channel.
Alarm electronics
The burner electronics have overhea-
ted (50 °C).
the boiler room temperature is correct.
Make sure that there is enough
insulation in order for the boiler
room temperature to remain be-
low 50°C.
Alarm overheat
The boiler water temperature sensor
shows more than 99 °C.
1. the circulation pump is on
2. the set boiler water temperature
1. Switch the circulation pump
on.
2. The maximum set temperatu-
re for boiler water is 95ºC. Ho-
wever, the temperature may rise
above this limit due to residual
heat. In this case, decrease the
setting.
The cause of overheating must
be found out before restarting.
Alarm tacho
The blower is not rotating
1. The blower is rotating
The tachometer monitors the
operation of the blower. If it
detects that the blower is not
rotating, an alarm is given and
the burner stops. However, if the
blower is functioning, the fault
may be in the tachometer. The
tachometer can be switched off
from the Accessories menu.
Alarm cleaning
The burner gives a warning when it is time to clean the burner head. The
time is calculated on the basis of the operating time of the auger burner. The
interval can be set in the Service menu. The setting 0 means that the func-
tion is off.
Alarm ash removal
The burner gives a warning when it is time to empty the ash box.
The time is calculated on the basis of the operating time of the auger bur-
ner. The interval can be set in the Service menu. The setting 0 means that
the function is off.
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