Wega Concept - 20 Malfunctions and Related Solutions

32
Wegaconcept
Technical manual
20 Malfunctions and related solutions
MALFUNCTION CAUSE SOLUTION
MACHINE LACKING POWER
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•
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.•
NO WATER IN BOILER
The water supply tap is closed.•
The cut-o tap of the automatic level device is in •
the closed position.
The pump  lter is clogged.•
The motor pump is disconnected or jammed.•
The water  lling solenoid valve is defective.•
The water inlet solenoid valve  lter is clogged.•
Open the water mains tap.•
Open the automatic level device tap.•
Substitute the pump  lter.•
Check the motor pump.•
Replace the water  lling solenoid valve.•
Clean or replace the  lter of the solenoid valve.•
TOO MUCH WATER IN THE BOILER
The solenoid valve of the automatic level device is •
defective
The level probe is out of order (clogged by lime •
scale)
Replace the solenoid valve of the automatic level •
device.
Replace the level probe.•
STEAM DOES NOT COME OUT OF NOZZLES
The machine is o .•
The electrical heating element is faulty.•
The temperature probe is faulty.•
The nozzle sprayer is clogged.•
Fuse F7 is burned out.•
Turn on the machine.•
Replace the electrical heating element.•
Replace the temperature probe.•
Clean the steam nozzle sprayer.•
Replace fuse F7.•
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 posi-•
tioned correctly and check for any surface lime scale.
NO DELIVERY
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  lter is clogged.•
The volumetric dosing device is blocked.•
The inlet and outlet taps of the dispenser are •
closed.
Check that there is water in the mains.
•
Replac
e 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  lter.•
Check/replace the dosing device.•
Open the taps.•
WATER LEAKS FROM THE MACHINE
The pad does not drain.•
The drain pipe is broken or detached or the water •
 ow is obstructed.
Hydraulic leaks in the hydraulic circuit.•
Check the sewer drain.•
Check and restore the connection of the drain pipe •
to the pad.
Identify and eliminate any hydraulic leaks.•
COFFEE IS TOO COLD
The electrical heating element of the co 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.
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.