EN
22
TROUBLESHOOTING GUIDELINE
Failure Reason Possible cause
The machine will
not start
• Power source not connected
• Check power source or power
source plug
• Low inlet water pressure or no water • Check inlet water pressure
• Low-pressure switch failure,
cannot connect the power source
• After connecting the inlet water,
measure the resistance and
replace if needed
• High-pressure switch cannot
be restored
• After easing pressure, measure the
resistance and replace if needed
• Transformer is burned out
• Measure output voltage and
replace if needed
The high pressure pump
is working properly,
but no water is being
produced
• High-pressure pump has lost
pressure
• Measure water pump pressure
and replace if needed
• Inlet water solenoid valve is
faulty, no water can get in (no
pure water)
• Replace solenoid valve
• A pre-fi lter is clogged
• Check pure water and waste
water and replace the pre-fi lter
• Non return valve is blocked
(waste water, no pure water)
• Replace the non return valve
• RO Membrane is clogged
• Clean or replace the RO
membrane
The storage tank is full
but no pure water is
fl owing out
• Storage tank doesn’t have
enough pressure
• Infl ate the storage vessel and empty
tank; pressure should be
between 0.05 and 0.07MPa
• Post-activated carbon fi lter is
clogged
• Replace the post-activated carbon fi lter
The machine is turned off
but waste water has not
stopped
• Inlet solenoid valve failed, cannot
effectively cut off water supply
• Check waste water, replace the inlet
solenoid valve
• Non return valve has lost pressure
(low waste water fl ow rate)
• Check waste water, replace the non
return valve
After the machine is fi lled
with water, the machine
starts repeatedly
• Non return valve has lost pressure • Replace the non return valve
• High-pressure switch failure • Replace the high pressure switch
• Loss of pressure in the system
• After checking the non return valve,
check for any water leaks in the
pipelines
Pure water fl ows slowly
or is not fl owing
• Pre-fi lter is clogged • Replace the pre-fi lter
• RO membrane is clogged • Wash or replace the RO membrane
• Inlet solenoid valve failure • Replace the inlet solenoid valve
• Non return valve is clogged • Replace the non return valve
• Post-carbon fi lter is clogged • Replace the post-carbon fi lter
• High-pressure pump pressure is
not enough
• Measure high-pressure pump water
pressure, replace if needed
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