Cleaning Isteam; Regular-Interval Maintenance And Repairs; Renewal Of Water In The Boiler; Stopping The Machine - Rancilio CLASSE 10 USB S Original Instructions Manual

11.2.2. Cleaning iSteam

 Clean the iSteam nozzle frequently with a sponge
or damp cloth. Make sure to clean the lower parts.
 Check to make sure that the sprayer is not clogged
or partially clogged with crusts and residues (if
a crust removal operation is necessary, be very
careful not to deform or damage the sprayer)
11.3. Regular-interval maintenance
and repairs
During all maintenance / repair operations, the
components used must be warranted to maintain
all the machine's hygiene and safety requirements.
Using the machine's original spare parts constitute
an effective warranty.
After repair or component replacement operations
involving parts coming into contact with water and/or
food, it is necessary to run the machine washing
procedure as specified under the installation and
first-time start-up section herein.
Have been fitted with economizers which do not
draw water from the boiler to make hot water, the
water in the boiler need only to be renewed from
time to time.

11.3.1. Renewal of water in the boiler

(Fig.12)
To be carried out only by qualified personnel.
 Turn off the machine and wait for the pressure in
the boiler to diminish (gauge needl on "0").
 Insert a rubber hose into the hose-end fitting (3)
(Fig.12)
 Use the wrench (1) to immobilize the fitting (2) and
loosen the hose-end fitting (3).
 Allow the water to flow out completely; then, close
the fitting (3) and remove the rubber hose.
 Refill the boiler (paragraph 7.3.).
Whenever descaling operations are necessa-
ry, ensure that only specific products suitable
for parts contacting water for public, human
consumption are used. Make sure that all
the relative product instructions are carefully
observed and complied with at all times.

12. STOPPING THE MACHINE

A - Temporary stop
 Carry out cleaning and maintenance operations.
 Wind up the cable and fasten it to the machine
with sticky tape.
 Cover the machine and place it in a dry room. Do
not leave it exposed to atmospheric agents and
do not allow it to be touched by children or unift
persons.
To disconnect from the main power supply, consult
qualified personnel.
B - Definitive stop
 Besides carrying out the operations necessary for
a temporary stop, cut off the cable, pack the ma-
chine in cardboard, polystyrene or other packing
material and consign it to firms authorized for its
disposal or to second-hand goods dealers.
13. TROUBLESHOOTING AND POSSIBLE
REMEDIES
Check operations to be carried out by the
user with the plug disconnected.
For any type of problem or inconvenience not
specifically indicated, disconnect the plug and
contact our service centre without attempting
any direct repairs.
A) The machine does not start:
- check that the plug is connected;
- In case of power failure wait for the power to return
and check if the earth leakage protection circuit
breaker or the main switch is on;
- check the condition of the plug and the supply
cable; if damaged have them replaced by qualified
personnel.
B) There is water under the machine:
- check that the drainage tray is not obstructed.
C) Slow dispensing:
- check that the filters and delivery heads are clean;
- check that the coffee is not too finely ground.
D) Irregular steam delivery:
- check that the nozzles are not obstructed.
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