3M SGLP100-CL, Installation And Operating Instructions Manual

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