2 6

General IntelliFlo 4 Troubleshooting Problems

Use the following general troubleshooting information to resolve possible problems with your IntelliFlo 4 pump.

Note: Switch the main power off to the pump before attempting service or repair.

Problem

Possible Cause

Corrective Action

 

 

 

Pump failure. Refer to

Pump will not prime - Air leak in suction.

Check suction piping and valve

Alarm and warning LED

 

glands on any suction gate

sequence on page 25.

 

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.

 

Pump will not prime - Not enough water.

Ensure that the suction lines,

 

 

pump, strainer, and pump volute

 

 

are full of water.

 

Pump strainer clogged.

Clean pump strainer pot.

 

Pump strainer gasket defective.

Replace gasket.

 

 

Reduced capacity and / Air pocket or leaks in suction line.

Check suction piping and valve

or head.

 

glands on any suctin gate valves.

Refer to Alarm and

 

 

warning LED sequence

Clogged impeller.

Turn off electrical power to the

on page 25.

 

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

 

 

debris 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.

Pump strainer clogged.

Clean suction trap.

IntelliFlo 4 Installation and User’s Guide

Page 32
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Pentair 100, 4 160 General IntelliFlo 4 Troubleshooting Problems, Problem Possible Cause Corrective Action

4 160, 100 specifications

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