Wega LB 4200 CAFFE’-CAFFE’ - Malfunctions and Related Solutions

45
instructions for the user
ENGLISH
19 Malfunctions and related solutions
INDICATION CAUSE SOLUTION
MACHINE LACKING
POWER
• The machine switch is in the "OFF" position
• The machine switch is broken
• The wiring is defective
• Place the machine switch in the "ON" position
• Replace the main switch.
• Check for any faulty connections
NO WATER IN BOILER
• There is no water in the internal tank
• The vibration pump is disconnected or jammed.
• The water lling solenoid valve is defective
• Fill the internal tank with water
• Check the vibration pump
• Replace the water lling solenoid valve
TOO MUCH WATER IN
THE BOILER
• The boiler lling solenoid valve is broken
• The boiler lling solenoid valve is stays on
• Replace the boiler lling solenoid valve
• Check the level probe, the earth of the frame and
the operation of the electronic control unit
STEAM DOES NOT COME
OUT OF THE NOZZLE
• The nozzle sprayer is clogged
• Machine switch in “OFF” position
• Clean the steam nozzle sprayer
• Place the machine switch in the "ON" position
STEAM MIXED WITH
WATER COMES OUT OF
THE NOZZLES
• The boiler level is too high
• Check the status of the level probe: check if it is positioned
correctly and check for any surface lime scale
NO DELIVERY
• There is no water in the internal tank
• The group solenoid valve is clogged or broken
• The vibration pump is jammed
• The volumetric dosing device is blocked
• Fill the internal tank with water
• Clean or replace the unit solenoid valve
• Replace the vibration pump
• Check or replace the dosing device
• Carry out the bleeding and stabilization procedure as
described in par. 7.2
WATER LEAKS FROM
THE APPLIANCE
• The drainage tray is full
• The drain pipe is broken or detached or the water ow is
obstructed.
• Leaks in the hydraulic circuit.
• Drain the pan
• Check and restore the connection of the drain pipe to the pan
• Identify and eliminate any hydraulic leaks
COFFEE IS TOO COLD
• The temperature of the unit or boiler is too low
• The unit's electrical heating element is defective
• The wiring is faulty
• Lime scale on the exchangers and/or boiler heating element
• The heating element protection thermostat intervened
• Machine switch in “OFF” position
• Lime scale has reduced the circulation of water
• The dispensing unit is cold
• Change the temperature of the unit and/or boiler
• Replace the unit's electrical heating element
• Check for any faulty connections
• Clean the machine
• Reset the heating element protection
• Place the machine switch in the "ON" position
• Clean the connections of the exchanger, and clean or replace
the circulation tubes
• Wait a few minutes for the entire heating of the machine and
then make some empty runs.
• Perform the descaling
COFFEE DISPENSED
TOO QUICKLY
• Boiler temperature is too high • Modify the boiler temperature
COFFEE DISPENSED
TOO SLOWLY
• The dispensing unit is clogged • Check and clean the dispensing unit