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*) When the PI controller is in use, fault codes 022 to 025 relate to the sensor. In case of an external
controller, the signal source is referred to.
029
Internal
System failure
•
Mainboard is defec-
tive
•
Replace mainboard
150
Pressure sensor
The pressure sensor deli-
vers values outside the nor-
mal range
•
HP pressure sensor
cable not connected
•
Check cable connec-
tion and make correc-
tion, if required
•
Pressure sensor de-
fective
•
Replace pressure
sensor
•
Broken wiring
•
Check wiring and fix,
if required
151
Max. pressure
The feed pressure of the
pressurised water has
exceeded 75 bar for a
period of
90
secs
•
Nozzles clogged
•
Clean or replace noz-
zles
•
Overpressure protec-
tion on high-pressure
pump not properly set
•
Please contact
HygroMatik
152
Min. pressure
Pressure cannot be built
up within 90 seconds
after actuation of the
high-pressure pump
•
Pressure hose leaky
•
Check pressure hose
and replace, if required
•
Overpressure protec-
tion on high-pressure
pump not properly set
•
Please contact
HygroMatik
•
Pressure variations in
RO device
•
Check RO device
153
Water inlet pressure
Water inlet pressure is
below 1 bar
•
Water supply not yet
connected
•
Connect water sup-
ply with pressure be-
tween 1 and 5 bar
•
Water filter polluted
•
Check filter and re-
place, if required
•
Pressure variations in
RO device
•
Loss of performance
of the pump due to
wear
•
Check RO device
•
Replace pump
154
Pump leakage
Water/oil has leaked from
the pump and the float
switch trips
•
Pump is leaking
•
Replace seals or
pump, if rquired
•
Float switch is stuck
•
Check float switch
These icons
flash
Fa
ult
Code
Fault message
Possible cause
Counter measure