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14.2 Service messages
Service messages are shown (just as the
fault messages) on the main screen in place
of the HygroMatik logo, when the cause has
occured.
When tipping the display field, the unit info
screen is shown with the messages in plain
text.
Service
Message
Possible cause
Countermeasure
Cycles_main_
contactor K1
The maximum number
of operating cycles for
the main contactor K1
has been reached.
The main contactor should be changed.
After replacement, the respective counter
must be reset with the parameter
„Main_contactor_K1_Reset“
Operating_time
The number of operat-
ing hours preset has
been reached.
Maintenance is required.
Pressure_water_
input_min
The water inlet pres-
sure lies under the
specified minimum.
The high-pressure pump is stopped until the
water inlet pressure has kept its minimum
value for the time period defined by parame-
ter 15/14. The appearance of the service
message increments an internal counter.
Whenever this counter shows 5 entries, the
fault message „water inlet pressure (02/1,
no. 153) is generated. The internal counter is
decremented each time when the water inlet
pressure has not undercut its specified mini-
mum for 10 mins without interruption.
Service_Nozzles
The spray system noz-
zles are not working at
their optimum.
Maintenance is required.
Service_Control
The control signal set-
ting is not at its opti-
mum.
Check control signal parameters.
Pressure_set_value
Leakage or loss of
pump power
The actual pressure falls below the set pres-
sure by >1bar for at least 180s at a fre-
quency of 50Hz. Cause: slight leaks in the
nozzle and hose area as well as pump wear.
This service message does not trigger an
error. The system continues to run until the
minimum pressure is no longer reached.
Then the system stops with error message
152.
Check and eliminate existing leaks or
replace the pump.
Pressure_water_
input_max
Water supply is not
orderly.
Optimise water supply.
