Sold todayVariable speed and flow
Pentair IntelliFlo3 VSF
Pentair's current variable speed and flow pump: it holds a set flow rather than just a speed, and runs from the Pentair Pool app over Wi-Fi.
1.5 THP · 3.0 THP · 115/208-230V (1.5 THP) · 208-230V (3.0 THP) · variable speed and flow
What we repair on the Pentair IntelliFlo3 VSF
A permanent-magnet motor run by an electronic drive — no start capacitor to replace. When one fails we read the drive's own fault before touching a part.
- Drive or keypad showing a fault, or the display dark — diagnosed against the manufacturer's fault list
- Not answering the automation or app — communication wiring and settings
- Speeds and schedules set wrong — reprogrammed for this pool, so it runs slow and quiet most of the day
- Leaking at the shaft seal (water under the motor) — a new mechanical seal before the bearings rust
- Air in the basket and losing prime — lid o-ring, basket, drain plugs, suction-side unions
- Loud grinding or screeching — worn motor bearings
- Low flow — impeller clogged or worn, diffuser gasket, basket
- Cracked strainer housing, lid or basket
From Pentair's manual
- Shaft seal 356210S on both sizes; seal kit 357871 (1.5 THP) or 357872 (3.0 THP). Pentair calls the seal a wearable part.
- Alarms show as a code in the app, the automation or the touchscreen — among them Priming Failure, Overheat, Over Current, Over/Under Voltage and Drive is Derating.
- Riser base kits 357831Z, 357832Z and 357833Z line it up with an IntelliFlo, WhisperFlo, IntelliPro, Max-E-Pro or Challenger footprint — matched to the pump being replaced.
The facts, from Pentair
- Type
- Variable speed and flow
- For
- In-ground pools
- Ratings
- 1.5 THP, 3.0 THP
- Voltage
- 115/208-230V (1.5 THP) · 208-230V (3.0 THP)
- Maximum flow
- — not stated by the manufacturer
- Controls
- Pentair Pool app over Wi-Fi and Bluetooth
- RS-485 to Pentair automation
- Optional touchscreen on the drive
- Optional relay board runs two more devices (lights, salt cell, booster pump)
- Sensorless flow control — keeps the flow you set as the filter loads
- Flow programs from 20–90 GPM (1.5 THP) or 20–140 GPM (3.0 THP)
- Up to 8 programs
- Permanent-magnet TEFC motor
- ENERGY STAR certified
| Model number | What it is |
|---|---|
| 011065 | IntelliFlo3 VSF 1.5 THP |
| 011066 | 1.5 THP with I/O board |
| 011075 | IntelliFlo3 VSF 3.0 THP |
| 011076 | 3.0 THP with I/O board |
Where these facts come from
Checked against Pentair's own pages on 2026-09-23. Manufacturers change their lineups — if something here no longer matches, the manufacturer's page is right and we will fix ours.