Wega Concept - Malfunctions and related solutions

34
Wegaconcept
Technical manual
SHUTDOWN OF THE ELECTRONIC SYSTEM
The control unit fuse F4 is burned out.•
One of the volumetric dosing device's contacts is •
grounded
Replace fuse F4•
Check the connection of the volumetric dosing •
device
THE PUMP LEAKS WATER
Poor mechanical grip of the shaft or O-Ring seal.•
The inlet and outlet connections are loose.•
The hex nut of the pressure relief valve or  lter is •
loose.
The seal or the O-Ring of the pressure relief valve •
or  lter is faulty.
Check the status of the pump and take any corrective •
action which may be required.
Tighten the connections.•
Tighten the hex connection of the pressure relief •
valve and  lter.
Replace the seal and O-Ring, taking care not to •
change the calibration of the valve.
THE MOTOR STOPS SUDDENLY OR THE
THERMAL PROTECTOR INTERVENES DUE
TO OVERLOAD
Lime scale and mineral build-ups in the pump have •
caused it to jam.
The pump and motor are not aligned.•
The motor is faulty.•
The motor is wired with non-conforming voltage.•
Check the status of the pump and replace it, if •
necessary.
Install the motor-pump joint•
Replace the motor.•
Ensure the power supply voltage of the motor is •
correct.
THE PUMP FUNCTIONS BELOW NOMINAL
CAPACITY
The inlet is clogged, perhaps only partially.•
The rotation sense of the pump is incorrect.•
The pressure relief valve is not properly calibrated.•
The motor runs at low RPM.•
The inside of the pump is damaged due to the •
in ltration of foreign materials.
Clean the  lter holder.•
Check the engine.•
Calibrate the relief valve.•
Check the voltage or replace the motor.•
Replace the pump.•
THE PUMP
MAKES NOISE
The pump and the engine are not aligned.•
The seal or O-Ring of the pressure relief valve or •
 lter is faulty.
The joint, the coupling screw or the V-shaped clamp •
are loose.
The inlet is clogged, perhaps only partially.•
The hex nut of the pressure relief valve or  lter is •
loose.
Install the motor-pump joint.•
Replace the seal and O-Ring, taking care not to •
change the calibration of the valve.
Align and tighten the components which are •
loose.
Clean the  lter holder.•
Tighten the hex connection of the pressure relief •
valve and  lter.
THE CUP IS DIRTY WITH SPLASHED
COFFEE
Steam pockets in the delivery system.•
Air pockets in the hydraulic circuit.•
C
o ee is ground too coarsely•
Reduce the water temperature.•
Check the cause and eliminate the problem.•
Adjust the grinding suitably.•