8
Problem Cause Solution
Notes
Unit Runs Low or
Out of Water
Low Feed Water Pressure
Repair Beverage Booster
Pump/System
Contact Dealer
Add Booster Pump
Assembly
Only if Beverage Booster System is
not installed
RO Membrane Fouled
Replace RO Module and SFC
Tubing (Stealth Flow Control)
Feed Water Pressure, Temperature,
RO Module Flow Rate and Reject
Water should be checked
Storage Tank Air Charge
is Low
Drain Tank using Sample Valve,
with Sample Valve Open, Pump-
up Air Charge, 8 -10 psi (55.2
- 68.9 kPa), 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
Slow Leak in the Distribu
-
tion Line
Repair Leak
The unit produces filtered water
slowly. A dripping leak can prevent
the tank from filling
Unit Never Shuts Off
(Continually Runs to
Drain)
RO Membrane Partially
Fouled, Unit can not pro-
duce enough water to
keep up the demand
Replace RO Module and SFC
Tubing (Stealth Flow Control)
High levels of hardness minerals may
be present in feed water, monitor
reject flow for plugging
Product Water Check
Valve has failed allowing
storage tank flow to drain
after unit is shut off
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 on 10 minutes. If the flow
to drain remains steady, replace
RO Module
Reject Water flow to drain should stop
when the feed water valve is off
Hydraulic Shut-off Valve
has failed
Replace valve
Should only be performed by a quali
-
fied technician
Troubleshooting Guide
