Before Contacting The Service Center - TECNOVAP HYDROBOX 10.7 Manual

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
Lacking of high pressure.
The pump is making no noise when
activated.
The pump does not reach the due
flow capacity (see machine data
plate) and is excessively noisy.
The pressure delivered by the pump
is insufficient.
The pump is overheating.
Water is leaking at the junction point
of the various accessories.
Visualisation of the wording "A L L 2".
Noise inside the generator.
The accessories do not fit perfectly.
CAUSA POSSIBILE
The high-pressure pump is not powered.
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.
Cavitation due to: supply lines and/or filter, insufficient
flow, high temperature of the water, blocked filter.
The water use is oversized compared to the due one
or the nozzle is worn out.
The oil level inside the carter pump is insufficient or
the oil type is not suiting to the recommended oil
types.
Check the deterioration of the O-rings.
Exceedance of temperature threshold, missing boiler
drainage, pressurized boiler after discharge of the
sludge.
After cooling down (6-7 hours) an internal depression
is created inside the boiler, which causes vibrations
when switching on again.
Dirt has deposited on the O-rings and the couplings.
Check if the pump switch
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 incoming water should not have a temperature
exceeding 25 °C.
Replace the nozzle on the lance, with an adequate
one. (see flow/pressure on the label of the high-
pressure pump group).
Add or replace oil.
Clean and lubricate the O-rings.
If necessary, replace the O-rings with the supplied
spares.
Insert the drainage cap, bleed out the air from the
boiler by activating the water release lever on the
supplied hand grip.
Wait for the pressure to be stabilized inside the boiler
(about 2-3 minutes), the noise disappears.
Clean and lubricate the joints of the accessories.
Pag. 15
HYDROBOX
RIMEDIO
is activated.
TECNOVAP 36/18