Troubleshooting - SPX MARLEY WaterGard WG002 User Manual

troubleshooting

Caution
Trouble Cause
WaterGard not supplied power
WaterGard will Circuit breaker tripped
not start
WaterGard in a FAULT
condition
Feed source not open
Feed pressure < 5 psi
System has power
but no water flow
Sediment filter clogged
Feed solenoid is not operating
Low pressure or flow rate
feeding WaterGard
Pump making
excessive noise
Pump motor or impeller failing
High chlorine levels
Fouled membrane
Poor quality
Conductivity cell out of
product water
calibration
Reject flow rate too low
Low pressure feeding
membrane
Low pump psi
Reject gpm flow rate too high
Excessive PRODUCT line
Low product
back pressure
flow rate
Low temperature incoming tap
water
Sediment filter clogged
Fouled membrane
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Only those persons who have read the complete user manual or who
Remedy
Reestablish power.
Reset the breaker.
Check the WaterGard controller display for FAULT condition and
correct the FAULT.
Open Incoming water valve.
Increase pressure to ≥ 30 psi.
Check the sediment filter gauges for pressure drop. Replace the
sediment filter if the pressure drop is 10 psi.
Test the solenoid. Replace the coil or valve if it is defective.
Check the sediment filter outlet gauge psi (must be ≥ 20 psi), and
verify that the product flow (flowmeter) is within range.
Check membrane psi gauge to verify that it is within operating
parameters. Replace the pump assembly if necessary.
Replace membranes. Verify carbon or pretreatment is removing all
chlorine.
Replace membranes.
Verify the conductivity cell accuracy with a known good meter. Follow
the Conductivity Calibration procedures on page 18 or replace cell if
necessary.
Insure reject flowrate is above the minimum requirements as shown in
Table 2.
Verify that the incoming tap water supply is fully open.
Pump should be operating at 70-120 psi.
Turn reject flow to equal product flow with the throttle valve.
Check for restrictions in the PRODUCT line.
Consult temperature correction chart in Table 2 to determine if the
flow rate is normal in relation to the feed water temperature.
Check the sediment filter gauges for pressure drop. Replace the
sediment filter cartridge if the pressure drop is ≥10 PSI.
Clean or replace membranes.
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