- Clean the coil by an iron brush.
- Suck the residuums from the boiler.
- Replace every parts doing the operations in
the inverse way.
• WARNING: The general checking and
combustion regulation must be periodically
executed by specialized personnel as
prescribed by the law.
ELECTRIC DIAGRAM
See illustrations, page 3-4.
WATER DIAGRAM
See illustrations, page 3-4.
TROUBLESHOOTING
Before doing any work on the machine, discon-
nect the electricity and water supplies and
discharge the pressure. Proceed systematically to
identify Faults following the chart below; if you
are still unable to eliminate the problem, call in
the Authorized After-Sales Service.
Fault
When the main switch is turned on the
machine does not start
Cause
• Plug not properly connected.
• Connection panel fuses are burnt out.
Repair
• Carefully check the plug and the electric
cable.
• Check them and replace them.
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-
• Check and/or replace.
pair
• 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.
Water is in the oil
Fault
EN
19