3M SGLP200-CL-BP Installationshandbuch - Seite 11
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Problem
Unit never
produces RO
water/only
provides bypass
water
Unit Runs Low
or Out of Water
Unit Never Shuts
Off (Continually
Runs to Drain)
Troubleshooting Guide
Cause
Solution
Repair existing
Booster Pump
Low Feed Water
Pressure
Add Water Booster
Pump
Repair Existing
Booster Pump /
System
Low Feed Water
(If Applicable)
Pressure
Add Water Booster
Pump
RO Membrane
Replace RO
Fouled
Membrane
Drain Tank using
Sample Valve, with
Storage Tank Air
Sample Valve Open,
Charge is Low
Pump Up Air Charge,
8 to 10 psi, Close
Sample Valve
Pre-Filter is
Plugged by
Replace Pre-Filter
Sediment
(Particles)
Slow Leak In the
Repair Leak
Distribution Line
RO Membrane
Partially Fouled,
Unit cannot
Replace RO
produce enough
Membrane
water to keep up
with demand
Check Reject Water
flow to drain in the
Product water
morning. Unit should
check valve,
be off and no flow
within the RO
to drain. If flow to
Membrane
drain exists, turn off
allowed storage
the feed water valve
tank to flow
and check for flow to
backwards to
drain in 10 minutes. If
drain
flow to drain remains
steady, replace RO
Membrane.
Notes
Contact Dealer
Only if Booster Pump
is not installed.
Contact Dealer
Only if Beverage
Booster System is not
installed
Feed Water Pressure,
Temperature, RO
Membrane Flow Rate
should be checked
before replacing
Membrane
Unscrew Blue Cap to
Access Schrader Air
Valve
A more frequent
pre-filter change-out
schedule may be
needed or use
HF60-CL or HF90-
CL for high sediment
load area
The unit produces
water slowly. A
dripping leak can
prevent the tank from
filling
High levels of
hardness minerals
may be present in
feed water, monitor
reject flow for
plugging, contact
dealer to add a water
softener
Reject Water flow
to drain should stop
when the feed water
valve is off.
10