for the user
Working and warning indicators
GREEN FUNCTIONING LAMP [1]
The green lamp can be off, flashing (slowly or rapidly) or on.
OFF: the boiler is electrically disconnected. In these conditions the boiler obviously doesn’t
work. The Automatic Anti Freezing and Anti Blocking functions can’t be activated (useful during
long period of inactivity). The external general switch could be off.
FLASHING (slowly): the boiler is electrically supplied but the SUMMER/WINTER Selector is
in central position (0). The boiler will not turn on following the needs of heating and domestic
hot water, but the Anti Freezing and Anti Blocking Functions are on (this last can request the
temporary ignition of the burner, then it is necessary that the gas is open).
FLASHING (rapidly): the Chimneysweeper Function (which is reserved for the technician) is
on by mistake.
Turn it off bringing the SUMMER/WINTER selector in the central position (0) until the green
lamp flashes slowly.
ON: the boiler is on and the SUMMER/WINTER selector is in the SUMMER
Position or in
the WINTER Position. The boiler will turn on following the needs of heating or of domestic
hot water.
BOILER’S LOCK OUT RED LAMP [7]
The red lamp can be off, flashing and on.
OFF: the functioning of the boiler is correct.
FLASHING:
— The System Temperature Sensor (inside the boiler) is damaged. Call a Qualified
Technician for repairing.
ON - it signals problems that can be normally solved by the user:
— The boiler has been just installed, or works have been made on the gas pipes.
It is normal that the boiler goes repeatedly in Lock Out when the Inlet Gas is mixed
with air. This impedes the correct ignition and then provokes the Lock out. In the
conditions described above, it is necessary to repeat more times the ignition of the
boiler turning the SUMMER/WINTER Selector in the Unlock
Position until the
red lamp turns off.
— The water pressure, shown by the gauge in the control panel, is not sufficient (0,5 bar
or lower).
Restore the correct pressure (optimal pressure: 1÷1,5 bar at cold system) opening
the inlet tap (the action is described before). Do not restore the pressure with hot
system, because when the system gets cold the pressure decreases.
Consider that the pressure, in normal conditions, should not decrease. If this happens,
there is probably a loss in the heating system. Sometimes the loss is so small that it
doesn’t leave evident signs, but with the progress of the time it can cause the
decreasing of the pressure.
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