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23 G
LOW INLET PRESSURE
- There is not enough incoming water pressure to turn on the RO.
a. Check the pre-RO tanks and make sure none are in backwash or regenerate. If Multmedia filter
or carbon tanks are in backwash, slowly turn timer nob to start position then turn off the RO
and then turn it back on again. If your softener is in regenerate you will have to wait until it
completes its cycle.
b. Check the incoming water pressure at gauge G6. Incoming pressure must be above 20 psi to
turn on the RO unit.
1. If G6 reads between 20-60 psi your pretreatment filters may be clogged and need to be replaced.
2. If G6 reads below 20 psi move back through pre-RO plumbing and check gauges G5, G4, G3,
and G2.
Gauge Approximate Range
G2 60-80 psi
G3 50-66 psi
G4 44-58 psi
G5 36-50 psi
If out of range try:
G2 Make sure valve B2 is closed all the way.
G3 Multimedia filter may be clogged. Try bypassing the multimedia filter. Open valve C2.
Close valves C1 and C3. Turn RO off and on again.
G4 Softener may be clogged. Try bypassing the softener. Open valve D2. Close valves D1
and D3. Turn RO off and on again.
G5 Your primary carbon tank may be clogged. DO NOT BYPASS CARBON TANKS!
Call BEST.
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