6.0TROUBLESHOOTING

TROUBLESHOOTING GUIDE

SYMPTOM

POSSIBLE CAUSES

REMEDIES

 

 

 

Low operating pressure

Insufficient feed water pressure

Open the feed pressure, open the

 

or flow

feed water valve, check for

 

 

restrictions.

 

 

 

 

Clogged pre-filter cartridge

Replace the pre-filter cartridge.

 

 

 

 

High flow rates

Close the concentrate valve,

 

 

check the permeate and concen-

 

 

trate flow rates and adjust if nec-

 

 

essary. Excessive permeate flow

 

 

may indicate a damaged O-ring.

 

 

 

 

Dirty or fouled membrane

Flush and clean the membrane

 

elements

elements.

 

 

 

 

Solenoid valve not opening

Clean or replace the solenoid

 

 

valve.

 

 

 

 

Pump rotating backwards

Switch any two of the three-

 

(three-phase power only)

phase leads to the motor starter.

 

 

 

 

Insufficient electrical power

Check the fuses or circuit break-

 

 

er, measure the voltage.

 

 

 

 

Pump not operating correctly

See the pump instructions.

 

 

 

Low permeate flow rate

Low operating pressure

See the possible causes for low

 

 

pressure.

 

 

 

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