Wega Wegaconcept, Руководство по эксплуатации и обслуживанию

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33
Wegaconcept
Technical manual
ENGLISH
MALFUNCTION CAUSE SOLUTION
WATER LEAKS FROM THE MACHINE
t
The pad does not drain.
t
The drain pipe is broken or detached or the water
flow is obstructed.
t
Hydraulic leaks in the hydraulic circuit.
t
Check the sewer drain.
t
Check and restore the connection of the drain pipe
to the pad.
t
Identify and eliminate any hydraulic leaks.
COFFEE IS TOO COLD
t
The electrical heating element of the coffee boiler
is faulty.
t
The wiring is faulty.
t
Lime scale on the heating element.
t
The heating element protection thermostat inter-
vened.
t
Machine switch in “OFF” position.
t The control unit fuses F2-F3-F5-F6 are burned out.
t The safety thermostat of the boiler or group is
disabled.
t
Replace the boiler's electrical heating element.
t
Check for any faulty connections.
t
Clean the machine.
t
Reset the heating element protection.
t
Place the main switch in the "ON" position.
t
Replace the interrupted fuses.
t
Reset the safety thermostat of the boiler or of the
group.
COFFEE IS TOO HOT
t
The set temperature for the coffee water is too high.
t
The set temperature of the group is too high.
t Reduce the set coffee water temperature.
t Reduce the group temperature.
COFFEE DISPENSED TOO QUICKLY
t
Coffee is ground too coarsely
t
The dose of ground coffee is too small.
t Adjust the grinding of the coffee.
t Check the amount (weight) of the ground coffee you
are using.
COFFEE DISPENSED TOO SLOWLY
t
Coffee is ground too finely.
t
The delivery group is clogged.
t
The filter holder is dirty.
t
Adjust the grinding of the coffee.
t
Check and clean the delivery group.
t
Clean and replace the filters, if necessary.
WET COFFEE GROUNDS
t
The group solenoid valve drain is clogged.
t
The dispensing unit is too cold
t
Coffee is ground too finely.
t
There's not enough ground coffee.
t
Clean the group drain.
t
Modify the heating temperature of the group.
t
Adjust the grinding of the coffee.
t
Increase the amount of ground coffee.
THE DISPLAY INDICATES UNACCEPTABLE
PRESSURE
t
The pressure transducer is faulty.
t
Incorrect motor pump calibration.
t
Replace the pressure transducer.
t
Adjust the calibration of the motor pump.
GROUNDS IN CUP
t
The filter holder is dirty.
t
The filter holes are worn.
t
The coffee is not ground evenly.
t
The seal under the pad is worn
t
The temperature of the delivery water is high.
t Clean the filter holder.
t Replace the filter.
t Replace the grinders.
t Replace the seal.
t Decrease the temperature of the groups and/or of
water used for coffee preparation
INCORRECT COFFEE DELIVERY
THE COFFEE DOSE IS NOT MET
THE LED OF THE DOSE BUTTON FLASHES
t
The connection of the volumetric dosing device is
faulty.
t
The connection of the electronic control unit is faulty.
t
The connector of the volumetric dosing device has
humidity on it.
t
The volumetric dosing device is faulty: during delivery
the dosing device, LED does not flash.
t
The coffee is ground too finely: there is not sufficient
water flow in the dosing device.
t
The non-return valve loses pressure (the dose is too
small).
t
The drain valves lose pressure (the dose is too small).
t
Water leakage from the group solenoid valve during
coffee delivery or when in stand-by.
t
The volumetric dosing device is partially obstructed.
t
Check for proper connection of the volumetric dosing
device connector.
t
Check for proper connection of the 8-pin connector of
the electronic control unit.
t
Remove the connector of the volumetric dosing device
and thoroughly dry the contacts.
t
Replace the heads of the volumetric dosing device or
replace the dosing device.
t
Adjust the grinding suitably and check the grinders,
if necessary.
t
Check and replace the non-return valve, if necessary.
t
Check and replace the drain valves, if necessary.
t
Clean and replace the solenoid valve, if necessary.
t
Clean or replace the volumetric dosing device.