Jandy VS FloPro with 2 Aux Relays
The larger VS FloPro, with two programmable relays of its own. Jandy sizes the 2.7 to replace single-speeds up to 2.5 HP and the 3.8 for pumps up to 3.95 HP.
1.85 THP · 2.70 THP · 3.80 THP · 115/208-230V (1.85, 2.70) · 208-230V (3.80) · variable-speed
What we repair on the Jandy VS FloPro with 2 Aux Relays
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 Jandy's manual
- RS-485 test: jumper pins 1–3 and 2–4 and power up. If the motor runs at 2600 RPM, the fault is the wiring or the controller, not the pump.
- Seized shaft check: power off, a 5/16" Allen key through the back of the fan housing turns the shaft by hand.
- Aux relay 1 closes at 1725 RPM and relay 2 at 2250 RPM, after a 3-minute start delay.
- Lost automation: power off both, wait five minutes, restore the automation first, then the pump a minute later.
The facts, from Jandy
- Type
- Variable-speed
- For
- In-ground pools
- Ratings
- 1.85 THP, 2.70 THP, 3.80 THP
- Voltage
- 115/208-230V (1.85, 2.70) · 208-230V (3.80)
- Maximum flow
- — not stated by the manufacturer
- Controls
- SpeedSet or SpeedSet Plus on the pump
- iQPUMP01 with the iAquaLink app
- AquaLink RS and TCX automation, JEP-R, four-speed dry contacts
- Two programmable auxiliary relays
- 3.8 THP fits the base of a Pentair IntelliFlo VS/VSF
- Adjustable base fits Hayward Super Pump, Pentair SuperFlo and WhisperFlo, Sta-Rite and Jandy footprints
- RS-485 quick-connect port
- 600–3450 RPM
| Model number | What it is |
|---|---|
| VSFHP185DV2A | 1.85 THP |
| VSFHP270DV2A / DV2AS / DV2ASP | 2.70 THP |
| VSFHP3802A / 2AS / 2ASP | 3.80 THP |
Where these facts come from
- Jandy — VS FloPro 2.7 HP
- Jandy — VS FloPro 3.8 HP
- Jandy — DV2A / 2A pump installation manual
- Jandy — VS FloPro 2.7 sell sheet
- Jandy — 3.8 HP service aid
Checked against Jandy'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.