HYDRO
BOX
Pag
. 15
TECNOVAP 36/18
8.3. Filter maintenance
Check periodically the filter inside the coupling for the water supply connection (04) by grasping the
provided tab in the centre of the filter with a gripper. Clean and put the filter back into place.
9.
BEFORE CONTACTING THE SERVICE CENTER
INCONVENIENTE
CAUSA POSSIBILE
RIMEDIO
Lacking of high pressure.
The high-pressure pump is not powered.
Check if the pump switch
is activated.
The pump is making no noise when
activated.
The pump is not primed and is dry-running.
There is no water supply.
The flow line is blocked and does not allow the air
outlet from inside the pump.
Check the coupling to the water supply.
Check the water supply connection (04) and the water
tap.
Turn the regulator (08) anticlockwise on the high-
pressure lance.
The pump does not reach the due
flow capacity (see machine data
plate) and is excessively noisy.
Cavitation due to: supply lines and/or filter, insufficient
flow, high temperature of the water, blocked filter.
The incoming water should not have a temperature
exceeding 25 °C.
The pressure delivered by the pump
is insufficient.
The water use is oversized compared to the due one
or the nozzle is worn out.
Replace the nozzle on the lance, with an adequate
one. (see flow/pressure on the label of the high-
pressure pump group).
The pump is overheating.
The oil level inside the carter pump is insufficient or
the oil type is not suiting to the recommended oil
types.
Add or replace oil.
Water is leaking at the junction point
of the various accessories.
Check the deterioration of the O-rings.
Clean and lubricate the O-rings.
If necessary, replace the O-rings with the supplied
spares.
Visualisation of the wording
“A L L 2”. Exceedance of temperature threshold, missing boiler
drainage, pressurized boiler after discharge of the
sludge.
Insert the drainage cap, bleed out the air from the
boiler by activating the water release lever on the
supplied hand grip.
Noise inside the generator.
After cooling down (6-7 hours) an internal depression
is created inside the boiler, which causes vibrations
when switching on again.
Wait for the pressure to be stabilized inside the boiler
(about 2-3 minutes), the noise disappears.
The accessories do not fit perfectly.
Dirt has deposited on the O-rings and the couplings.
Clean and lubricate the joints of the accessories.
