BWT bestaqua 22 HQ Notice De Montage Et D'utilisation page 45

4.2 Trouble shooting guide
Please observe: If your reverse osmosis is not performing as it should, please run through the alarm messages below.
In the event of a fault, repair work may only be carried out by an expert (SERVICE technician).
Alarm / malfunction list:
FAULT 1
4: "FAULT 1: Pump defective"
FAULT 2
5: "FAULT 2: Pump defective"
FAULT 3
6: "FAULT 3: Pressure sensor
permeate"
FAULT 4
7: "FAULT 4: Pressure sensor
pump"
FAULT 5
8: "FAULT 5: Temperature sensor"
CONDUCTIVITY/TDS
> LIMIT
9: "FAULT 6: CONDUCTIVITY
is too high > xx μS/cm"
Possible reasons:
improper (wire rupture)
High water temperatures
Acknowledgement:
Call SERVICE team
Call SERVICE team
Replacement of pump motor
Call SERVICE team
Call SERVICE team
Replacement of pressure sensor
Call SERVICE team
Replacement of temperature sensor
Check of alarm limit value - Check of
alarm limit value - If water bleeding was
activated either increase the limit value
of conductivity or shut down the blending.
Please check the pre-treatment of the
feed water.
Replacement of the RO membranes
Call SERVICE team
EN
45