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B) Osmosis-treated water not produced
Possible
causes
No electrical power
No power to pump
Intake pressure switch faulty (jammed on full)
Vat level switch (low) faulty (jammed on full)
Osmosis pump
not running
No water supply or supply pressure/flow
inadequate
Water in vat
Water supply too cold (<10°)
Pre-filter blocked
Membranes blocked
Osmosis pump
Impeller damaged/broken
running but
production low
Bypass valves need adjustment
Discharge pipe crimped
Pressure drop in vat supply hoses
Subcause
- 43 -
Solution
Check power supply and power switch ON
(see "Positioning and installation")
Power plug not inserted in electrical panel
(insert)
Check connections and whether board is
sending a signal
Pump condenser faulty (replace)
Replace, or adjust the pressure with the
adjuster screw (fig.5)
Max level switch faulty, does not send
production enable signal (replace/clean)
(see wiring diagram)
- Supply cock closed OPEN;
- Supply filter blocked CLEAN
- Supply pressure should be > 1.5 bar
- Pre-filter up/downstream cocks closed
OPEN (see maintenance section)
- Filter blocked – REPLACE (fig.5)
- Filler solenoid valve faulty or no power –
REPLACE IF FAULTY (fig.5)
- Intake pressure switch faulty (jammed on
empty) – REPLACE (fig.5)
Vat level switch (high) faulty, does not
switch to full: continues producing with
overflow. REPLACE (see wiring diagram)
Increase supply temperature
Replace pre-filter (see maintenance
section)
Replace membranes (see maintenance
section)
Check pressure gauge reading
if > 8, replace pump or impeller as
required
See special adjustments section
Route pipe properly
Shut off power, dry thoroughly and repair
leak
Display
alarm
message
none
Low pressure
Flooding
alarm
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