Ferroli SUN G20 Instrucciones De Uso, Instalación Y Mantenimiento página 39

SUN G20
The flame is ignited normally,
but the burner shuts down at
the end of the safety time
Ignition with pulsating or
dis joint ed flame, delayed
ig ni tion
Pump noisy, fluctuating pres-
sure
The pump loses prime after
ex tend ed shut-down
Pump leaks oil
Fuel supply irregular
Bacharach soot dark
Bacharach yellow
Combustion head dirty
Electrodes defective or earthed/Replace
Ignition transformer defective/Replace
Electrode cables defective or earthed/Re place
Electrode cables deformed due to high tem per a ture/Replace and pro tect
Electrical connections to the valve or trans form er incorrect /Check
Defective appliance/Replace
Motor-pump joint broken/Replace
Pump inlet connected to the return pipe/Cor rect the con nec tion
Photo cell defective/Replace
Photo cell dirty /Clean photo cell
Defective appliance/Replace
Head poorly adjusted /Adjust
Ignition electrodes poorly ad just ed or dirty /Adjust or clean
Fan damper poorly adjusted, too much air /Ad just
Nozzle not suitable for the burn er or the boiler /See nozzle ta ble
Nozzle defective /Replace
Pump pressure 1st stage not suitable /Ad just be tween min 8 and max 12 bars
Air in the inlet piping /Tighten the fittings
Too much difference in height between the burner and the tank/Supply burner
using a ring circuit and aux il ia ry pump
Pipe diameter too small /Increase diameter
Inlet filters dirty /Clean
Oil supply valve closed /Open
Paraffin solidification due to low temperature /Add additive to the oil
Return pipe not immersed in the fuel /Move to same height as the inlet pipe
Air in the inlet piping /Tighten the fittings
Seal device leaking/Replace pump
Supply system or pump blocked or defective /Supply the burner from a tank
lo cat ed near the burner to iden ti fy whether the problem depends on the pump
or the system
Insufficient air /Adjust the head and fan damper
Dirty or worn nozzle/Replace
Nozzle filter dirty/Clean or replace
Flame stability disk dirty, loose or deformed /Clean, tighten or replace
Insufficient ventilation in the boiler room/Check ventilation openings in the
room, clean or enlarge
Excess air /Adjust the head and fan damper.
Head poorly adjusted or insufficient air /Adjust the head, open the air damper
Nozzle or nozzle filter dirty/Replace
Incorrect nozzle angle or flow-rate/Replace
Nozzle loose /Tighten
Impurities from the surrounding environment on the stability disk/Clean
Cod. 35442633 - 01/2007 (Rev. 00)
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