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12 - TROUBLESHOOTING
During troubleshooting, evaluate and exclude the possible causes in the order below.
Fault
Red, yellow and green
filter LEDs on, the unit
does not dispense water
Yellow LED on, the unit
dispenses water with
buzzer
Motor alarm (the unit does
not dispense water, red
LED on)
Flooding (buzzer)
The unit does not dis-
pense water, no output
The motor pump starts on
its own at regular intervals
Low supply flow rate (less
than 0.6l/min)
The motor runs even
when unit not dispensing
50
FAULT TABLE
Cause
Pre-filter used up
Pre-filter running out
Water drawn for over 15 min
Large leak inside or down-
stream of the unit
Leakage of components
inside the unit
Presence of water from
the outside or following the
intervention
Electric supply problem
Blown fuse
Board damaged
Leakage (even minor) in
supply circuit downstream
of the unit or in the tap
Check valve dirty or
damaged
Low inlet flow rate
Solenoid valve filter clogged Clean solenoid valve filter
Filter used up
Membranes used up
Motor pump broken
Pressure switch broken
Wiring interrupted or
disconnected, check with
tester
Control unit broken
Intervention
Replace
Contact customer service for
replacement
Switch the unit off and back on
Repair failure, switch the unit
off and back on
Switch the unit off, find the
cause, repair the leakage and
dry carefully
Resolve problem
Replace
Replace
Repair
Replace check valve
Resolve hydraulic problem
Replace
Replace
Replace
Replace
Repair
Replace
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