Malfunctions And Related Solutions - Wega Concept Use And Maintenance Manual

Wegaconcept
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Malfunctions and related solutions

MALFUNCTION
MACHINE LACKING POWER
NO WATER IN BOILER
TOO MUCH WATER IN THE BOILER
STEAM DOES NOT COME OUT OF NOZZLES
STEAM MIXED WITH WATER COMES OUT
OF THE NOZZLES
NO DELIVERY
WATER LEAKS FROM THE MACHINE
COFFEE IS TOO COLD
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CAUSE
• The general switch is in the "OFF" position.
• The machine switch is defective
• The mains power supply switch is in the OFF position.
• The wiring is defective
• The water supply tap is closed.
• The cut-off tap of the automatic level device is in
the closed position.
• The pump fi lter is clogged.
• The motor pump is disconnected or jammed.
• The water fi lling solenoid valve is defective.
• The water inlet solenoid valve fi lter is clogged.
• The solenoid valve of the automatic level device is
defective
• The level probe is out of order (clogged by lime
scale)
• The machine is off .
• The electrical heating element is faulty.
• The temperature probe is faulty.
• The nozzle sprayer is clogged.
• Fuse F7 is burned out.
• The boiler level is too high.
• No water supply.
• The group solenoid valve is faulty.
• The pump is jammed.
• The control unit fuse F1 is burned out.
• The injector is clogged.
• The group solenoid valve is clogged or dirty.
• The group fi lter is clogged.
• The volumetric dosing device is blocked.
• The inlet and outlet taps of the dispenser are
closed.
• The pad does not drain.
• The drain pipe is broken or detached or the water
fl ow is obstructed.
• Hydraulic leaks in the hydraulic circuit.
• The electrical heating element of the coff ee boiler
is faulty.
• The wiring is faulty.
• Lime scale on the heating element.
• The heating element protection thermostat inter-
vened.
• Machine switch in "OFF" position.
• The control unit fuses F2-F3-F5-F6 are burned out.
• The safety thermostat of the boiler or group is
disabled.
SOLUTION
• Place the main switch in the "ON" position.
• Replace the main switch.
• Place the main switch in the ON position.
• Check for any defective connections.
• Open the water mains tap.
• Open the automatic level device tap.
• Substitute the pump fi lter.
• Check the motor pump.
• Replace the water fi lling solenoid valve.
• Clean or replace the fi lter of the solenoid valve.
• Replace the solenoid valve of the automatic level
device.
• Replace the level probe.
• Turn on the machine.
• Replace the electrical heating element.
• Replace the temperature probe.
• Clean the steam nozzle sprayer.
• Replace fuse F7.
• Check the status of the level probe: check if it is posi-
tioned correctly and check for any surface lime scale.
• Check that there is water in the mains.
• Replace the group solenoid valve.
• Replace the pump.
• Replace fuse F1.
• Clean or replace the injector.
• Clean or replace the solenoid valve.
• Clean or replace the fi lter.
• Check/replace the dosing device.
• Open the taps.
• Check the sewer drain.
• Check and restore the connection of the drain pipe
to the pad.
• Identify and eliminate any hydraulic leaks.
• Replace the boiler's electrical heating element.
• Check for any faulty connections.
• Clean the machine.
• Reset the heating element protection.
• Place the main switch in the "ON" position.
• Replace the interrupted fuses.
• Reset the safety thermostat of the boiler or of the
group.
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