La San Marco 85 Flexa E series, Use And Maintenance

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ENGLISH
PROBLEM CAUSE SOLUTION
9. Tank automatic level alarm
(only for models with
automatic tank) by means
of flashing blue LED.
• Timeout for tank filling.
• Main water supply valve
closed.
• Faulty automatic level
solenoid valve.
• Check that the automatic level water
circuit is not clogged.
• Check if the on-off valve on the
water supply is open.
• Replace the automatic level
solenoid.
• Replace control unit.
10. Leakage of water from
tank (only for models with
automatic tank filling).
• Malfunction in automatic level
circuit.
• Malfunction of overflow
capacitive sensor.
• Replace filling solenoid valve.
• Replace capacitive sensor.
• Replace control unit.
11. The machine and its
indicator light are on, but
the electronics do not
work.
• Control unit-push button
panel disconnected.
• Control unit malfunction.
• Check push button panel wiring.
• Check fuse in control unit
• Replace control unit.
12. The machine leaks water
from the assembly.
• Pump and/or cup discharge
solenoid valve always
powered or failed.
• Assembly valve leaks.
• Replace control unit.
• Replace solenoid valve.
• Replace assembly valve.
13. The steamer discharges
only small quantities of
steam or water droplets.
• Tap needs adjustment.
• Worn gasket on tap. • Use appropriate register.
• Replace the gasket.
14. Small drops flow out of the
water tap.
• Tap needs adjustment.
• Worn gasket on tap. • Use appropriate register.
• Replace the gasket.
15. A whistle is heard during
dispensing of coffee.
• Abnormal operation of
assembly valve.
• Replace assembly valve.
16. The cup comes off the
dispensing assembly.
• Gasket under holder is worn. • Replace the gasket.
• Clean the serving unit and the cup.
17. When coffee is being
served, some of it drips
out of the edge of the cup.
• Gasket under holder is worn. • Replace the gasket.
• Clean the serving unit and the cup.
18. Water leakage from the
coffee boiler vent solenoid
valve inside the tank.
• Defective solenoid.
• Solenoid valve always
powered.
• Check and clean solenoid, or
replace.
• Replace control unit.
19. Light cream.
• Coffee boiler water
temperature below 95°C
• Assembly sprinkler clogged.
• Use palm unit to increase boiler
temperature.
• Replace sprinkler.
20. Dark cream (the coffee
drips out of the spout).
• Fine grinding.
• Excessive temperature. • Increase coarseness of ground
coffee.
• Use palm unit to decrease water
temperature in boiler.
21. Presence of grounds in
coffee cup.
• Coffee ground too fine.
• Worn grinders in grinder-
dispenser unit.
• Sprinkler filter on unit clogged.
• Cup filter holes dilated.
• Temperature too high for
coffee being used.
• Coarser grinding.
• Replace the grinders.
• Check and clean sprinkler filter or
replace.
• Check and replace cup filter.
22. Coffee with little cream in
cup.
• Cup silicon valve defective or
worn.
• If using tablets, tablet seal
gasket defective or worn.
• Coffee pump defective.
• Check whether silicone valve is
positioned correctly or worn, replace
if necessary.
• Replace gasket that holds tablet.
• Replace coffee pump.