Labconco WaterPr RO Systems 90750 Series - Manuel (Page 37)

Chapter 6: Troubleshooting
33
Original Instructions
PROBLEM CAUSES CORRECTIVE ACTION
Increase in µS
(microsiemen)
reading High inlet TDS This is normal. With
increased inlet TDS, RO µS
increases
RO membrane scaling or other
deposits Clean membrane per
instructions in RO cleaning
section
Excessively high µS RO membrane fouled
Biofilm formed Clean RO membrane per
instructions in RO cleaning
section
RO poisoned
Chlorine damage Replace RO membrane and
prefilters per installation
instructions