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2. Start the pump.
3. Open valve gradually to give full fl ow.
4. If the discharge is not clear, let the pump run until
water clears. If water does not clear in 30 minutes, stop
the pump and take the necessary steps to correct the
condition. After the water has appeared clear, check
for sand by discharging into a clean bucket or suitable
container.
5. Close valve until maximum required system fl ow
rate is obtained (this should correspond to the cut-in
TROUBLESHOOTING
Problem
Unit fails to start
Pump fails to deliver water
Pump gives reduced output
Pump cycles too frequently (if installed with
pressure switch)
Overloads trip
Pressure switch cycles rapidly when pump
starts, (if installed with pressure switch)
pressure of the pressure switch). Ensure that the output
of the pump at this setting is not greater than the yield.
This can be checked by monitoring drawdown level and
ensuring that the level is stable at the maximum required
system fl ow rate.
C A U T I O N
submerged in water. If run without water, the pump
and motor could be damaged. Note also that air
drawn into the pump can cause an airlock under
certain conditions.
1. Electrical trouble, call dealer or electrician.
2. Drawdown protection device has pump turned off.
3. Overload tripped.
4. Reset low pressure cutoff switch if installed.
1. Air lock in pump.
2. Clogged intake screen.
3. Insuffi cient application yield.
1. Insuffi cient application yield.
2. Worn pump.
3. Clogged intake screen.
4. Low voltage.
5. Incorrect rotation, 3-phase only.
1. Excessive pressure drop between pressure switch and pressure tank.
2. "Cut-in" pressure at pressure tank too high.
3. "Cut-out" pressure at pressure tank too low.
4. Waterlogged pressure tank.
5. Start and stop electrodes of fl oatless liquid level control set too
close together.
6. Tank sized too small to meet system requirements.
1. Electrical trouble, call dealer or electrician.
1. Pressure switch too far from pressure tank.
2. Adjust air charge of tank to manufacturer's recommendations.
Never run pump unless it's completely
Possible Cause
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