Fault
When the lance is turned on pressure
values decrease and increase
Cause
• The nozzle is either clogged or deformed.
• Either boiler coil or lance are clogged with
limestone.
Repair
• Either clean it or replace it.
• Descaling.
Fault
To much vibrations at the delivery
Cause
• The pressure tank is run down.
• The valve are worn out or dirty.
Repair
• Check the pressure in the tank.
• Check and/or replace.
Fault
The pump does not reach the fixed pressures
Cause
• The pump sucks air.
• The valves are worn out.
• The setting valve area is worn out.
• The nozzle is unsuitable or worn out.
• The seals are worn out.
Repair
• Check the suction pipes.
• Check and/or replace.
• Contact an authorised service centre.
• Contact an authorised service centre.
Fault
Irregular pressure fluctuations
Cause
• The suction and/or delivery valves are worn
out.
• Presence of foreign matters in the valves,
which generate bad functioning.
• Air suction.
• The seals are worn out.
Re-
pair
• Check and/or replace.
• Check and clean the replace.
• Check the suction pipe.
• Check and/or replace the seals.
Fault
Pressure leakage
Cause
• The nozzle is worn out.
• The suction and/or delivery valves are
broken or down.
• Presence of foreign matters in the valves,
which generate the valves bad functioning.
• The setting valve area is worn out.
• The seals are worn out.
Repair
• Replace the nozzle.
• Check and/or replace the valves.
• Check and clean the valves.
• Check and/or replace the setting valve area.
• Replace the seals.
Fault
Noisiness
Cause
• Air suction.
• The suction and/or delivery valve springs
are broken or down.
• Foreign matters in the suction and delivery
valves.
• The bearings are worn out.
• Extreme liquid temperature.
Repair
• Check the suction pipes.
• Replace the valve springs.
• Check and clean the suction and delivery
valves.
• Replace the bearings.
• Reduce the liquid temperature.
Fault
Water is in the oil
Cause
• The O-ring casing is worn out.
• High moisture in the air.
• The seals are completely worn out.
Repair
• Check and/or replace the O-ring.
• Replace the oil with double frequency in
respect of the one suggested.
• Replace the seals.
Fault
Filtrations of water from the drains
between casing and head
Cause
• The seals are worn out.
• The piston is worn out.
• The O-ring of the piston cap is worn out.
Repair
• Replace the seals.
• Replace the piston.
• Replace the seal.
Fault
Filtrations of oil from the drains be-
tween head and casing
Cause
• O-ring seals of casing are worn out.
Repair
• Replace the seals.
Fault
Turning on the burner switch the
boiler does not start
Cause
• No fuel.
• Fuel filter is clogged.
• Fuel pump is either blocked or burnt out.
• Damaged thermostat.
• Ignition spark insufficient or totally lacking.
• The space among the electrodes is not
correct.
• Burn out fuse.
Repair
• Check the level in the tank and check
whether the rigid suction pipe is clean.
• Replace the line filter.
• Replace it.
• Replace it.
• Contact an authorised service centre.
• Check the positioning.
• Replace it.
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