Pentair SUPERFLO VST User Manual

18
SUPERFLO® VST, SUPERFLO
®
VS and SUPERMAX® VS Variable Speed Pumps Installation and User’s Guide
TROUBLESHOOTING
Problem Possible Cause Corrective Action
Pump failure. Pump will not prime - Air in suction
line or pump
Pump will not prime - Not enough
water
Strainer basket excessively dirty or full
Strainer pot O-ring is damaged
1. Inspect suction line plumbing and valve(s) for damage or loose
connections.
2. Ensure the strainer pot lid is sealing properly. Verify lid o-ring is in
place.
3. Ensure proper pool water level and water is available to the
skimmer.
1. Ensure suction line and pump strainer pot are full of water.
2. Ensure suction line valve is working and open (some systems do
not have valves).
3. Ensure proper pool water level and water is available to the
skimmer.
Clean strainer basket. See Cleaning the Pump Strainer Basket, page
14.
Inspect strainer pot o-ring for damage. Replace if necessary.
Reduced capacity and/or
head.
Air in suction line or pump
Clogged impeller
Strainer basket excessively dirty or full
1. Inspect suction line plumbing and valve(s) for damage or loose
connections.
2. Ensure the strainer pot lid is sealing properly. Verify lid o-ring is in
place.
3. Ensure proper pool water level and water is available to the
skimmer.
Disassemble pump (Pump Disassembly, page 15) and remove
debris from impeller.
Clean strainer basket. See Cleaning the Pump Strainer Basket, page
14.
Pump fails to start. Mains voltage is not present
Motor is locked
Motor shaft is damaged
1. Replace fuse, reset breaker/GFCI.
2. Tighten mains wire connections.
Disassemble pump (Pump Disassembly, page 15) and attempt to
rotate motor shaft by hand to remove any blockage.
Replace pump.
Pump runs then stops. Over temperature FAULT
Over current FAULT
Ensure motor fan cover at the rear of the motor is free of dirt and
debris. Use compressed air to clean.
Pump will automatically restart after one (1) minute.
Pump is noisy. Debris in contact with fan
Strainer basket excessively dirty or full
Loose mounting
Ensure motor fan cover at the rear of the motor is free of dirt and
debris. Use compressed air to clean.
Clean strainer basket. See Cleaning the Pump Strainer Basket, page
14.
Ensure mounting bolts and pump bolts are tight.
Troubleshooting Chart
Diagnosing certain symptoms may require interaction with, or close proximity to, components that are energized with electricity. All
servicing should be performed by a qualied service professional. Contact with electricity can cause death, personal injury, or property
damage.

Pentair SUPERFLO VST Specifications

General

Brand	Pentair
Model	SUPERFLO VST
Category	Water Pump
Language	English