7596040 – MANUALE WO-20 EN 21052018 REV.1
- 20 -
Problem:
With the display on and functioning, after opening water, the motor doesn't start.
Cause
Solution
Maximum pressure
switch
Check operation and calibration.
Pump
Check pump conditions, if necessary replace it.
Burned Motor
Replace the motor
Capacitor
Replace it
Problem:
With the display on and functioning, after opening the water the motor starts but
does not supply water.
Cause
Solution
Low pressure alarm
Check inlet tap;
check inlet pressure.
*
Clogged pre-filter(s)
Replace prefilter(s).
*
Solenoid valve faulty
Replace the solenoid valve.
Burnt coil
Replace the coil.
Wrong wiring
Check the wiring and fastening of cable that goes to terminals.
Problem:
The machine produces little water.
Cause
Solution
Clogged solenoid valve
Check the input solenoid valve status and operation, if it is clogged,
replace it.
Clogged filter
Replace the filter.
*
Clogged membrane
Replace the membrane.
Low pressure
Verify correct operating pressure
It is advisable to install a pressure gauge on the way to the pump, to check the
operating pressure.
Problem:
With the tap closed, the machine does not stop or runs intermittently
Cause
Solution
Pump pressure switch
faulty.
Check the status and functioning of the pressure switch.
Non-return valve
Check permeate block and non-return valve function.
Problem:
With the tap open, the machine works intermittently, in fits and starts.
Cause
Solution
High pressure switch set
at too low a pressure.
Perform the pressure switch calibration.