- insert the new nozzle: secure it by pushing the
mobile lock ring all the way down.
8.4 RE-START AFTER LONG PERIOD OF INACTIVITY
If the equipment is re-started after a particularly
long period of inactivity, operate as indicated in
Chapter 6 regarding commissioning.
If the equipment functions anomalously, act as
described in Chapter 9 regarding “Diagnostics”. if the
problem should persist or is not considered, contact
the Authorised After-Sales Centre immediately.
8.5 HOW TO REQUEST AFTER-SALES ASSISTANCE
Choose one of the following options to request
after-sales assistance:
1. contact the Authorised After-Sales Centre;
2. telephone the Zhermack S.p.A. After-Sales
Service at +39 0425 597611 and proceed as
follows: give personal data (e.g. address and
telephone number); state the information given
on the equipment identification plate (see
paragraph 3.4); explain the problem with the
equipment clearly;
3. fax all of the information stated in the previous
point and the correctly filled-in identification
form (see Attachment 10.3) to the following n°
+39 0425 53596.
CHAPTER 9: DIAGNOSTICS
9.1 GENERAL WARNINGS
If any of the anomalies described below
should occur, solve the problem, where
allowed, with respect to all instructions
contained in this manual. If the problem
persists, contact the Authorised After-Sales
Centre.
9.2 TROUBLESHOOTING
PROBLEM After switching on the equipment via
the main switch the LED on the key fails
to come on.
CAUSE 1. The power cable is not plugged in.
2. There is no current to the socket.
3. Blown fuse.
4. Electrical fault.
REMEDY 1. Plug in the power cable.
2. Check the socket/electrical panel in
the building.
3. Replace the fuse (T 10 A).
4. Contact an Authorised Service Centre.
PROBLEM During start-up of the VAP 8 the
indicator light (4) stays on for longer
than 5 seconds.
CAUSE 1. No water/not enough water in the
boiler.
2. Electrical fault.
REMEDY 1. Add distilled water to the boiler (see
section 6.6.1).
2. Contact an Authorised Service Centre.
PROBLEM The electric pump on the VAP 8A fails to
fill the boiler with water.
CAUSE 1. Automatic pump shutdown on
account of the overheating caused
by high pressure or no water in the
boiler.
REMEDY 1. Proceed as per point 1 of section 7.2.
PROBLEM Steam generator overpressure warning
light comes on.
CAUSE 1. Safety pressure switch has tripped
because pressure is higher than 8 bar,
thus shutting down the machine.
2. Electrical fault.
REMEDY 1. Proceed as per point 2 of section 7.2.
2. Contact an Authorised Service Centre.
PROBLEM Steam generator safety valve has
opened.
CAUSE 1. Steam generator malfunction.
REMEDY 1. Switch off the equipment and contact
an Authorised Service Centre.
PROBLEM The pressure in the boiler drops
considerably when the gun trigger
button is pressed or noise is heard
inside the boiler when the element is
on.
CAUSE 1. Low pressure inside the boiler due to
steam condensation.
REMEDY 1. Press the gun trigger for a few
seconds with the equipment on.
PROBLEM
the pressure gauge indicates a pressure of more
than 8 bars.
SOLUTION
A certain difference from the nominal value is
normal and is explained by the tolerances of the
internal components (in this specific case, the
pressure switch and pressure gauge). Operation
at a higher pressure, even up to 9 bars, does
not compromise boiler safety. In addition to the
operational pressure switch, the steam generator is
also fitted with a safety pressure switch which trips
at 9.5 bars and a certified safety valve which trips
at 12 bars. Moreover, the boiler is certified to resist
up to 24 bars.
PROBLEM
there are drips from the fixed nozzle or gun.
SOLUTION
drips from the fixed nozzle or gun may have two
main causes. If the drips appear shortly after use,
they are caused by condensation of the steam
in the circuit and are normal. If the drips are
continuous, they are most probably caused by