Malfunctions And Solutions - Astoria SABRINA SAE DISPLAY Use And Maintenance Manual

Malfunctions and solutions

9.6
Problem
NO MACHINE POWER
NO WATER IN THE HEATING UNIT
TOO MUCH WATER IN THE HEATING UNIT
WATER LEAKS FROM THE MACHINE
WATER LEAKS FROM THE DISPENSING
GROUP
THE DISPLAY INDICATES NON-
CONFORMING PRESSURE
THE SAFETY VALVE HAS CUT-IN
STEAM DOES NOT COME OUT OF THE
NOZZLES
WATER OR STEAM MIXED WITH WATER
COMES OUT OF THE STEAM NOZZLES
NO COFFEE IS DISPENSING
THE COFFEE GROUNDS ARE WET
GROUNDS FOUND IN CUPS
THE CUP IS DIRTY WITH COFFEE
SPLASHES
TECHNICIANS manual
Cause
The main switch is in the "OFF" position.
The machine switch is faulty.
The mains switch is in the OFF position.
The wiring is defective.
The water mains tap is shut off.
The cut-off tap of the automatic level device is closed.
The pump filter is clogged.
The motor pump is disconnected or jammed.
The water filling solenoid valve is faulty.
The water inlet solenoid valve filter is clogged.
The solenoid valve of the automatic level device
is faulty.
The level probe is out of order (clogged by limescale).
The tray is not draining.
The drain pipe is broken, has detached, or the water
flow is obstructed.
Water is leaking from the hydraulic circuit.
The group gasket is worn.
The display is faulty.
The motor pump has been calibrated incorrectly.
The electronic control unit is faulty.
The machine is switched off.
The electrical heating element is faulty.
The temperature probe is faulty.
The nozzle sprayer is clogged.
The safety thermostat is deactivated or faulty.
The level of the heating unit is too high due to the
level probe being incorrectly positioned inside the
heating unit or the presence of limestone.
The heating unit filling solenoid valve is leaking.
There is no water in the mains.
The group solenoid valve is faulty.
The pump is jammed.
The group solenoid valve is clogged or dirty.
The group filter is clogged.
The volumetric dosing device is jammed.
The inlet and outlet taps of the dosing device are closed.
The outlet nozzle of the volumetric dosing device is dirty.
The group solenoid valve drain is clogged.
The dispensing group is too cold.
The coffee has been ground too finely.
There's not enough ground coffee.
The filter holder is dirty.
The filter holes are worn.
The coffee has not been ground evenly.
The group gasket is worn.
The pump pressure is too high.
There are steam pockets in the dispensing system.
There are air pockets in the hydraulic circuit.
The coffee has been ground too coarsely.
Action
Turn the main switch to the ON position.
Replace the main switch.
Turn the mains switch to the ON position.
Check for any faulty connections.
Open the water mains tap.
Open the automatic level device tap.
Replace the pump filter.
Check the motor pump.
Replace the water filling solenoid valve.
Clean or replace the solenoid valve filter.
Replace the solenoid valve of the automatic level
device.
Replace the level probe.
Check the sewer drain.
Check and restore the drain pipe connection to
the tray.
Restore the hydraulic seal by replacing the pipe, the
gasket or the fitting as necessary.
Replace the group gasket.
Replace the display.
Adjust the motor pump calibration.
Check that the electronic system is working properly.
Turn on the machine.
Replace the electrical heating element.
Replace the temperature probe.
Clean the steam nozzle sprayer.
Reactivate the thermostat or replace it.
Check the condition of the level probe: check if it
is positioned correctly and check for any surface
limescale.
Clean and replace the filling solenoid valve.
Check that there is water in the mains.
Replace the group solenoid valve.
Replace the pump.
Clean or replace the solenoid valve.
Clean or replace the filter.
Check/replace the dosing device.
Open the taps.
Clean or replace the nozzle.
Clean the group drain.
Wait until the group has fully heated up.
Adjust the coffee grinder.
Increase the amount of ground coffee.
Clean the filter holder.
Replace the filter.
Replace the grinders.
Replace the seal.
Adjust the pump pressure.
Reduce the water temperature.
Check the cause and resolve the problem.
Adjust the grinder as appropriate.
Sabrina
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