ECO P N
47
EN
cod. 3541S060 - Rev. 00 - 05/2019
3.3 Troubleshooting
The burner is equipped with an advanced self-diagnosis system. In case of a burner fault, the display (detail 4 - fig. 1)
flashes indicating the fault code.
There are faults the cause permanent shutdowns (marked with the letter
"A"
): to reinstate operation, press the
“Reset”
button
(detail 8 - fig. 1) for 1 second; if the burner fails to restart, it is necessary to firstly eliminate the fault.
Other faults cause temporary shutdowns (marked with the letter
"F"
) which are automatically reset as soon as the value
returns within the burner's normal operating range.
Table. 5 - List of faults
Fault
Fault
Cause
Cure
A01
No ignition shutdown
Pellet container empty
Fill the container with pellets
Auger cable broken or disconnected
Restore the connection
Faulty igniter resistance
Replace and empty the head of pellets
Combustion head dirty
Empty and clean it
Pellet feed duct obstructed
Free it, make sure the combustion head is
not clogged and empty it if necessary
F02
Parasite flame elimination
The demand for heat has ended, but the
burner detects flame
Wait for end of post-ventilation
Incorrect ignition parameters
Check ignition parameters
A02
Shutdown for parasite flame
Photoresistance short circuit
Replace the photoresistance
Extraneous light strikes the photoresistance
Eliminate the light source
Incorrect ignition parameters
Check ignition parameters
A03
Wiring fault
Jumper of terminals 20-21 not connected
Check the wiring
A04
Auger safety thermostat block
Boiler under pressure
Clean it and check correct minimum flue
draft (10Pa)
Faulty safety thermostat
Replace it
Auger cable broken or disconnected
Restore the connection
F05
Incorrect pipe pressure adjust-
ment
Pressure sensor connection tube squashed
Replace
Fan motor damaged
Replace
Fan dirty
Clean it
F06
Pressure transducer fault (dis-
connected)
Wiring disconnected
Check the wiring or replace the sensor
F10
Boiler shell probe fault (if ena-
bled)
Sensor damaged
Check the wiring or replace the sensor
Wiring shorted
Wiring disconnected
F11
DHW sensor fault
Sensor damaged
Check the wiring or replace the sensor
Wiring shorted
Wiring disconnected
F14
Card parameter fault
Wrong card parameter setting
Check the card parameter and modify it if
necessary
F34
Supply voltage under 170V.
Electric mains trouble
Check the electrical system
F37
Card parameter fault
Wrong card parameter setting
Check the card parameter and modify it if
necessary
F42
Card parameter fault
Wrong card parameter setting
Check the card parameter and modify it if
necessary