Astoria SABRINA SAE DISPLAY Use And Maintenance Manual page 47

Component Type of operation
HEATING UNIT
Check that the safety valves and non-return drain valves are operating properly, as indicated
SAFETY VALVE in para. 9.3.4 on page 48 and 9.3.5 on page 48.
SCNR VALVE If these need to be replaced due to malfunction, repeat the check with the newly-installed
valve.
HYDRAULIC CIRCUIT
DRAIN
DISPENSING GROUP Check the efficiency of the dispensing group's solenoid valve.
WATER and STEAM NOZZLES Check the condition of the nozzles and clean the sprayer.
DOSING DEVICE Check and clean the volumetric dosing device by removing any oxidation from the tips.
ELECTRIC SYSTEM Check and clean the volumetric dosing device by removing any oxidation from the tips.
TOUCHSCREEN
MOTOR PUMP Check that the motor pump is working correctly and adjust if necessary.
If any work is carried out on the machine electronics when
the machine is still live, any guarantee will automatically be
invalidated.
All original spare parts are available from the Manufacturer's
website. THE Manufacturer may provide the list of spare parts
recommended for the maintaining the various versions of the
machine.
TECHNICIANS manual
Replace the electric heating element if it becomes faulty or malfunctions.
Do not replace the heating element with a more powerful one. Before making any changes,
please contact the Manufacturer.
If the thermostat of the heating element is triggered, reset it by pressing the central button
of the thermostat. However, before starting the machine up again, check what caused the
problem.
Remove and clean the heating unit level probes.
Check whether there is any limescale build-up on the heating element.
If there is a lot of limestone build-up, this indicates that the water filter has not been replaced,
or that the softener has not been regenerated.
When replacing any components, always replace the relative gasket as well.
Check whether there is any limescale build-up in the hydraulic circuit.
When replacing any components, always replace the relative gasket as well.
If there is a lot of limestone build-up in the machine's hydraulic circuit, this indicates that
the water filter has not been replaced, or that the softener has not been regenerated.
Take care in areas where the water is very hard. The water filter will need to be replaced
more frequently and the water softener will need to be regenerated more often, especially
if the machine is used intensively
Check for any leaks on the water mains and sewer connections.
Check the state of the drain tray and the drain connection tube.
Check that the touchscreen is working correctly and adjust the parameters if necessary.
View the machine counts and check the performed work cycles.
9.3.2 Maintenance after a short period of machine
inactivity
"Short period of machine inactivity" refers to a period
of time exceeding one working week.
If the machine is switched back on after this period, a
Qualified Technician must replace all the water inside the
hydraulic circuits as indicated in para. 7.9 on page 32.
All the scheduled maintenance operations must also
be performed - see the previous paragraph.
Sabrina
Quarterly Yearly
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