General Intelliflo Troubleshooting Problems - Pentair IntelliFlo WhisperFlo VF Guide D’installation

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General IntelliFlo Troubleshooting Problems

Use the following general troubleshooting information to resolve possible problems with your IntelliFlo pump.
Note: Turn off power to unit prior to attempting service or repair.
Problem
Pump failure.
(For IntelliFlo alert dis-
play messages, refer to
Alerts and Warning on
page 59).
Reduced capacity and /
or head.
(For IntelliFlo alert dis-
play messages, refer to
Alerts and Warning on
page 59).
IntelliFlo VF Installation and User's Guide
Possible Cause
Pump will not prime - Air leak in suction.
Pump will not prime - Not enough water.
Pump strainer clogged.
Pump strainer gasket defective.
Air pockets or leaks in suction line.
Clogged impeller.
Pump strainer clogged.
Corrective Action
Check suction piping and valve
glands on any suction gate valves.
Secure lid on pump strainer pot
and make sure lid gasket is in
place.
Check water level to make sure
skimmer is not drawing air.
Ensure that the suction lines,
pump, strainer, and pump volute
are full of water.
Clean pump strainer pot.
Replace gasket.
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
volute to the seal plate.
Slide the motor and seal plate
away from the volute.
Clean debris from impeller. If de-
bris cannot be removed, complete
the following steps.
1. Remove diffuser and O-ring.
2. Remove left hand thread anti-
spin bolt and O-ring.
3. Remove, clean and reinstall
impeller.
4. Reinstall anti-spin bolt and
O-ring.
Reinstall diffuser, and O-ring.
Reinstall motor and seal plate into
volute.
Reinstall (6) bolts around seal plate
and volute and tighten securely.
Clean suction trap.