Installation Guide: IntelliFlo3 and IntelliPro3 vsf pool Pump

Pump is Leaking 
(from Strainer Pot Lid)
1. Ensure the strainer pot lid is installed correctly (lid 
handles are perpendicular to the suction port) and 
is compressing the strainer pot lid O-ring.
2. Refer to 
Cleaning the Pump Strainer Basket on 
page 14
and remove the strainer pot lid.
Inspect the strainer pot lid O-ring for damage or 
debris build-up. Replace or clean the O-ring if 
necessary.
Pump is Leaking 
(from Underneath 
Motor)
Disassemble the pump and inspect the shaft seal.
The shaft seal is a wearable part and will need to be 
replaced after prolonged operation.
Refer to 
Disassembly
on page 16 and 
Reassembly
on page 16 for instructions.
Troubleshooting Chart
 (continued)

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22
INTELLIFLO3™ VSF / INTELLIPRO3™ VSF Variable Speed and Flow Pump Installation and Maintenance Guide
Alarms and Warnings
When an Alarm is triggered the drive's ON/STOP LED will blink RED and a fault code will display. The pump will stop 
until the alarm is resolved.
When a Warning is triggered the drive's ON/STOP LED will blink GREEN/YELLOW and a fault coded will display. 
Depending on your particular setup, fault codes will display on one or more of the user interfaces:
• Pentair Home App 
• Automation System Interface
• Optional Touchscreen Controller (Almond - P/N 356159z, Black - P/N 356348z)
ALARM / 
WARNING
DESCRIPTION
DEFINITION
Weak Wi-Fi 
Connection
Weak Wifi connection 
detected.
Pump antenna may be obstructed or too far away from your router. The antenna wire 
can be extended.
Refer to 
Relocating the WiFi Antenna
on page 18.
Offline
The pump is offline.
The Pentair cloud cannot connect to your pump.
This could be caused by a power outage at the pump or router, or a loss of WiFi 
signal to the pump.
Priming Failure
The pump has reported a 
Priming Failure Alarm.
Priming failure can be caused by lack of water in the volute strainer basket.
Overheat
The pump has reported an 
Overheat Condition.
The pump motor has detected an abnormally high internal temperature. This can be 
caused by a blockage of the cooling fan inlet or outlet, or by excessively high ambient 
air temperature.
The pump will attempt to protect itself by reducing the motor speed to give the motor 
and drive a chance to cool down.
Over Current
The pump has reported an 
Over Current Condition.
Load has increased on the motor; due to debris, part interference, temperature 
issues, age of parts, or supplied voltage.
Refer to 
Disassembly
on page 16 and inspect the rotating parts of the pump for 
blockages or debris buildup.
Over Voltage
The pump has reported an 
Over Voltage Alarm.
Supplied voltage is outside of the proper range. When voltage returns to the normal 
the alert will clear and the pump will resume operation.
Under Voltage
The pump has reported an 
Under Voltage Alarm.
Supplied voltage is outside of the proper range. When voltage returns to the normal 
the alert will clear and the pump will resume operation.
Speed Limit
The pump has reported a 
Speed Limit Warning.
The pump is operating at the programmed maximum speed in order to achieve the 
desired speed/flow. 
Refer to 
Limits Parameters
on page 12 for instructions on adjusting the Speed 
Limit.
If this alert displays and the Speed Limit is already set to 100%, then the pump may 
not be capable of achieving the desired flow rate.
Pressure Limit
The pump has reported a 
Pressure Limit Warning.
The pump is operating at the programmed maximum system pressure.
The pump monitors Total Dynamic Head, and not outlet pressure, so it may differ from 
the reading on the filter gauge.
Refer to 
Limits Parameters
on page 12 for instructions on adjusting the pump 
Pressure Limit.
Flow Limit
The pump has reported a
Flow Limit Warning.
The pump is operating at the programmed maximum flow rate.
Refer to 
Limits Parameters
on page 12 for instructions on adjusting the pump Flow 
Limit.
Internal Fault
The pump has an internal 
error.
This alert can be caused by a few different types of internal hardware or software 
errors in the drive. 
Disconnect power to the pump and reconnect after one minute. If the alert remains, 
contact a qualified pool professional.
Drive is Derating 
(Warning)
The pump is slowing down 
to prevent the drive from 
overheating.
This alert usually accompanies an Overheat or Over Current alert.
It is intended to note that the pump will continue to operate at a reduced speed as 
long as possible.
After the drive has cooled enough it will automatically resume normal operation.
Derating Alarm - 
Exceeded & Cut 
Off
The pump has stopped 
to prevent the drive from 
overheating.
The motor and drive are not able to reduce speed enough to protect themselves.
The motor will stop and Pentair Home will display this alarm.
When the drive has cooled enough, it will automatically resume operation and attempt 
to run the requested program.
Thermal Mode
The pump operating in 
Thermal Mode.
The pump is operating in Thermal mode. Thermal Mode is controlled by the drive's 
internal temperature, not water temperature.