INTELLIFLO
®
VSF Variable Speed and Flow Pump Installation and User’s Guide
26
INTELLIFLO
®
VSF Variable Speed and Flow Pump Installation and User’s Guide
Problem Possible Cause Corrective Action
Pump failure.
(For alert display
messages, refer to Alerts
and Warnings on page 25).
Pump will not prime - Air leak in suction.
PRIME ERROR may be displayed.
Pump will not prime - Not enough water.
Pump does not come out of priming mode.
Pump completes priming mode too early, and/or
there is still a large amount of air in the housing
Pump stainer basket is clogged.
Pump strainer gasket is defective.
Check suction piping and valve glands on any
suction gate valves. Secure lid on pump strainer pot
and be sure lid gasket is in place. Check water level
to be sure skimmer is not drawing air.
Be sure the suction lines, pump, strainer, and pump
volute are full of water.
Adjust priming range to a higher setting
(default setting is 5).
Adjust priming range to a lower setting
(default setting is 5).
Clean pump strainer pot.
Replace gasket.
Reduced capacity and/
or head.
(For alert display
messages, refer to Alerts
and Warnings on page 25).
Air pockets or leaks in suction line.
PRIMING FAILURE may be displayed.
Clogged impeller.
PRIMING FAILURE may be displayed.
Pump strainer pot clogged.
PRIMING FAILURE may be displayed.
Check suction piping and valve glands on any
suction gate valves.
Turn off electrical power to the pump.
Remove the (6) bolts that holds the housing (strainer
pot/volute) to seal plate. Slide the motor and seal
plate away from the volute.
Clean debris from impeller. If debris cannot be
removed, complete the following steps:
1. Remove diffuser and o-ring.
2. Remove reverse-thread impeller screw and o-ring.
3. Remove, clean and reinstall impeller.
4. Reinstall reverse-thread impeller screw and o-ring.
Reinstall diffuser, and o-ring.
Reinstall motor and seal plate into volute.
Reinstall seal plate nuts and volute and tighten
securely.
Clean suction trap.
Clean pump strainer pot.
Inadequate circulation.
(For alert display
messages, refer to Alerts
and Warning on page 25).
Filter or pump basket dirty.
Suction/discharge piping is too small.
Speed is set too slow for proper filtration cycle.
Check trap basket; if plugged, turn pump off and
clean basket.
Check and clean pool filter.
Increase piping size.
Increase filtration run time.
Electrical problem.
(For
alert display
messages, refer to Alerts
and Warning on page 25).
Could appear as a “Low Voltage” alarm.
Could appear as “Over Heat” alert.
Check voltage at motor terminals and at panel while
pump is running. If low, see wiring instructions or
consult power company.
Check for loose connections.
Check line voltage; if less than 90% or more than
110% of rated voltage consult a licensed electrician.
Increase ventilation.
Reduce ambient temperature.
Tighten any loose wiring connections.
Motor runs too hot. Turn power to motor off.
Check for proper voltage.
Check for proper impeller or impeller rubbing.
Troubleshooting Chart
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