56
09.2
ALARM MESSAGES
Following is an overview on appliance alarms linked to the probable causes and some potential solutions. I
f an alarm occurs with a
certain frequency, contact a specialised Technical Service Center.
Alarm code
Alarm test
Alarm cause
Main solution
AL 1
POWER
OUTAGE
•
No power supply.
•
A black out occurred during normal operations for
an interval longer than the BLACK-OUT parameter.
•
Make sure the electrical connection between the
socket on the appliance back and power cord is
correct.
•
Make sure the fuse in the socket is integral.
•
Make sure appliance wiring terminals are tight.
AL 2
FUMEPROB
FAILURE
•
Fume probe fault or not electrically connected
correctly to the electronic board.
•
Make sure the following are correctly connected:
Red wire to te and J type thermocouple
probe.
AL 3
FUME
OVERHEAT
•
Fume temperature over 260°C limit.
•
Contact the specialised Technical Service Center
•
An incorrect value was set in MAX RUN THRESH-
•
The appliance does not yield heat to water
AL 4
EXHAUST-
FAILURE
•
Fume fan speed does not match the set point
•
Burner temperature has exceeded the safety
threshold
•
Fume fan incorrectly wired.
•
Fume fan dirty or clogged with deposits or ash.
•
Fan broken.
•
Check the manual reset thermostat on the back of
the appliance (pellet thermostat). If blocked, press
the reset button.
•
Contact the specialised Technical Service Center,
fume fan settings may required adjustments based
on draught.
•
Visually and manually ensure the fan freely rotates.
•
Safety thermostat temperature sensor incorrectly
positioned.
•
Fume exhaust fan could be broken.
•
Check fan wiring and ENCODER terminal wiring
to the unit.
AL 5
IGNITION
FAILED
•
Minimum fume temperature not reached within
maximum ignition time
•
No pellets in the basket.
•
Dirty basket does not permit normal ignition.
•
Electrical heating element for lighting fault
•
Ignition after pellet tank empty without initial load.
•
Auger gear motor failure.
•
The brazier is positioned incorrectly.
•
Check pellet content in the tank.
•
Make sure the pellet load auger works correct
(start the component from menu PELLET LOAD,
MENU 7).
•
Check basket cleanliness
•
Check correct brazier position.
•
Make sure the electrical resistance works (start the
component from menu TEST OUTPUTS).
AL 6
NO MORE
PELLET
•
Fume temperature lowers to limit.
• Pellet flow and/or fume fan speed are incorrect to
maintain minimum flame.
•
Pellet tank empty, top up.
• Adjust pellet flow and fume exhaust fan speed to
keep minimum flame.
•
Before restarting, pellet load may be required from
MENU 7. Fully emptying the tank generally also
requires the load auger to be empties and causes
ignition with scarce pellets and thus the chance
of IGNITION FAILED alarm. After completing the
Load Pellet sequence in Menu 7, the brazier must
be emptied, i.e. the stove must be started up with
a clean firebox.
AL 7
SAFETY
THERMOST
•
Tripped burner safety thermostat.
•
Check for any heat return to the burner, adjust
pellet flow and fume exhaust fan speed.
AL 8
LOWPRESS
FAILURE
•
Safety pressure switch triggered on fume exhaust
fan delivery.
• Check flue cleanliness
•
Make sure flue passage is not especially
winding (see
CHAP.07.2 - FLUE OR FUME
EXHAUST SYSTEM
).
•
Check fume fan cleanliness
•
Adjust fume pressure switch calibrations (if set for
regulations) to guarantee maximum draught.
•
Make sure the door is closed.
AL 9
H2OPROBE
FAILURE
•
Water probe broken or incorrectly wired.
•
Make sure the two probe wires are correctly
inserted in the terminal. There are no mandatory
connection directions for NH
2
O terminals
•
Replace the water probe.
Summary of Contents for MEC 21-18 kW
Page 59: ...ENGLISH NOTE 59...
