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OPM BWT PERMAQ® Pico Rev. 2.0 EN
Alarms and fault elimination | 9
EN
47
Alarm message
Possible cause
Possible corrective action
A2 WCF high
Alarm can be activated/
deactivated in the
SER-
VICE MENU
•
Flow sensor F21.01 is faulty
•
Nominal diameter is not set
correctly
•
Delay time or alarm limiting
value is set too low
•
Concentrate quantity is too
low
•
Check the settings in the ser-
vice menu and adjust if ne-
cessary
•
Ask for the BWT service team
•
Check the cover or setting of
the concentrate valve
Table
11: Troubleshooting for A2 alarms
9.4 Troubleshooting for A3 alarms
Alarm message
Possible cause
Possible corrective action
A3 Inlet pressure
low
Warning is issued if the
inlet pressure was fallen
below for 15 seconds. The
device then restarts auto-
matically. If the inlet pres-
sure is not above 1
bar
after four start-up at-
tempts, the message
A1
Inlet pressure low
is
displayed and the device
switches off.
•
See
A1 Inlet pressure
low
•
See
A1 Inlet pressure
low
A3 Ext. tank empty
Alarm can be activated/
deactivated in the
SER-
VICE MENU
Filling level alarm, perme-
ate tank is empty
•
Leakage in the permeate tank
•
Permeate consumption is per-
sistently too high > tank is
empty and device cannot
produce enough permeate
•
Polarity (
NO/NC
) of the switch
does not correspond to the
polarity of the connected
switch
•
RO start
float sensor, filling
level sensor is faulty
•
Loose connection between
the float sensor/filling level
sensor and terminal
•
Locate the leakage and stop
it
•
If the problem continues to
persist, increase the distance
between the
RO start
and
RO stop
contacts in the tank
or use a larger tank or an-
other device model with a
higher permeate output.
•
Adjust the polarity in the ser-
vice menu
•
Check the connection at the
corresponding terminal
A3 Refill Anti-
scalant
•
If antiscalant dosing has been
installed, the dosing tank is
almost empty
•
If antiscalant dosing is not
connected, the link at the
corresponding terminal may
be disconnected
•
Replace the AS dosing con-
tainer
•
Ensure that the contacts at
the corresponding terminal
are connected tightly (spe-
cialist personnel).
A3 Refill NaOH
•
If NaOH dosing is installed,
the dosing tank is almost
empty
•
If NaOH dosing is not connec-
ted, the link at the corres-
ponding terminal may be dis-
connected
•
Replace the AS dosing con-
tainer
•
Ensure that the contacts at
the corresponding terminal
are connected tightly (spe-
cialist personnel).