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Troubleshooting
This is a listing of some common problems, their causes, and the appropriate remedy. For conditions
other than those listed here, contact your GRO sales representative for guidance.
NOT MAKING ENOUGH WATER
1. Reject ratio too low
2. Product line blocked
3. Pressure too low
4. TDS too high
5. Membrane fouled
6. Prefilter plugged
7. Pressure tank has too much air pressure (if used)
MAKING TOO MUCH WATER
(possible reasons)
1. O-ring by-pass on membranes
2. Chlorine damage to membranes
3. Temperature increase
4. Reverse flow through membrane (causing a rupture in the membrane)
PERMEATE TDS TOO HIGH
(possible reasons)
1. O-ring by-pass in RO membrane assembly
2. Chlorine damage to membranes
3. Membrane fouling
4. Ruptured membrane
5. Increase in feed water TDS
6. High pH in feed water (over 9.0)
PUMP CYCLES ON AND OFF
(every few seconds)
A defective pressure switch could cause the pump to cycle rapidly on all models. Check for leaks in
the product line. If there is a pressure tank in line, be sure it is properly pressurized.
Содержание GRO
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