Astoria Plus4YouTS - Page 63

63
Technical manual
ENGLISH
MALFUNCTION CAUSE SOLUTION
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 the engine 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 engine.
• 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ltra-
tion 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 IS NOISY
• 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.
• Coee is ground too coarsely
• Reduce the water temperature.
• Check the cause and eliminate the problem.
• Adjust the grinding suitably.