Lamborghini Caloreclima NINFA N LOW NOX 24 MCS Instrucciones De Uso, Instalación Y Mantenimiento página 79

NINFA N LOW NOX 24 MCS
3.4 Troubleshooting
Diagnostics
In case of operating problems or trouble, the display flashes and the fault identification code appears.
There are faults that cause permanent shutdown (marked with the letter "A"): to restore operation, press the RESET
button (detail 6 - fig. 1) for 1 second or RESET on the optional remote timer control if installed; if the boiler fails to start,
it is necessary to first eliminate the fault.
Faults marked with the letter "F" cause temporary shutdowns that are automatically reset as soon as the value returns
within the boiler's normal working range.
List of faults
Table. 2 - Fault list
Fault
Fault
code
A01 No burner ignition
Flame present signal with
A02
burner off
Overtemperature protection
A03
activated
Air pressure switch (fails to
F05 close contacts within 20 sec.
of fan activation)
No flame after the ignition
A06
stage
F10 Delivery sensor 1 fault
F11 DHW sensor fault
F14 Delivery sensor 2 fault
F34 Supply voltage under 170V.
F35 Mains frequency anomaly
Incorrect system water pres-
F37
sure
F39 External probe fault
EN
Possible cause
No gas
Ignition/detection electrode fault
Faulty gas valve
Ignition power too low
Electrode fault
Card fault
Heating sensor damaged
No water circulation in the sys-
tem
Air in the system
Air pressure switch contact open
Faulty air pressure switch wiring
Faulty baffle
Flue not correctly sized or
obstructed
Low pressure in the gas system
Burner minimum pressure set-
ting
Sensor damaged
Wiring shorted
Wiring disconnected
Sensor damaged
Wiring shorted
Wiring disconnected
Sensor damaged
Wiring shorted
Wiring disconnected
Power supply trouble
Power supply trouble
Pressure too low
Sensor damaged
Probe damaged or wiring
shorted
Probe disconnected after acti-
vating the sliding temperature
cod. 3540R880 - 01/2009 (Rev. 00)
Cure
Check the regular gas flow to the boiler and that the
air has been eliminated from the pipes
Check the wiring of the electrode and that it is cor-
rectly positioned and free of any deposits
Check and if necessary replace the gas valve
Adjust the ignition power
Check the ionisation electrode wiring
Check the card
Check the correct positioning and operation of the
heating sensor
Check the circulating pump
Vent the system
Check the wiring
Check the fan
Check the pressure switch
Replace the baffle
Check the gas pressure
Check the pressures
Check the wiring or replace the sensor
Check the wiring or replace the sensor
Check the wiring or replace the sensor
Check the electrical system
Check the electrical system
Fill the system
Check the sensor
Check the wiring or replace the sensor
Reconnect the external probe or disable the sliding
temperature
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