Pentair WHISPERFLOXF VS User Manual

WHISPERFLOXF
®
VS and MAX-E-PROXF
®
VS Commercial Variable Speed Pump Installation and User’s Guide
21
Problem Possible Cause Corrective Action
Pump runs without ow. Impeller is loose. Check that pump is spinning by looking at fan on back of
motor. If so, check that pump impeller is correctly installed.
Air leak. Check plumbing connections and verify they are tight.
Clogged or restricted plumbing or strainer basket. Check for blockage in strainer basket or suction side
piping.
Check for blockage in discharge piping, including partially
closed valve or dirty pool lter.
“LoFlo” or “HiFlo” alarm. Flowmeter 20-set setting is too high (Low Flow
alarm) or too low (High Flow alarm).
Clean the pool lter, pump strainer basket and all skimmer
baskets. Recalibrate the owmeter 20-set (refer to Flow
Mode Setup and Conguration on page 14).
Electrical problem. Could appear as a “000E” low voltage alarm. Check voltage at motor terminals and at panel while pump
is running. If low, see wiring instructions or consult power
company.
Check for loose connections.
Could appear as “0017” overheat alert. Check line voltage; if less than 90% or more than 110% of
rated voltage consult a licensed electrician.
Increase ventilation.
Reduce ambient temperature.
Inspect drive to motor connection terminals.
Motor runs too hot. Turn power to motor off.
Check for proper voltage.
Check for proper impeller or impeller rubbing.
Mechanical troubles and
noise.
The pump motor is running but with loud noise. If suction and discharge piping are not adequately
supported, pump will be strained. Do not mount pump on a
wooden platform! Securely mount on concrete platform for
quietest performance.
Foreign matter (gravel, metal, etc.) in pump
impeller.
Disassemble pump, clean impeller, follow pump service
instructions for reassembly.
Cavitation. Improve suction conditions.
Increase pipe size.
Decrease number of ttings.
Increase discharge pressure.
Speaking noise, especially evident at pump start-
up or slow down.
Inspect motor slinger and motor shaft seal behind the
slinger (NOT the pump’s shaft seal). Apply lubrication to the
motor shaft rubber seals.
Pump does not respond to
external controls.
Improper external control, digital input or ow
control setup.
Be sure that the digit input cable is connected at both ends.
Troubleshooting, (continued)

Pentair WHISPERFLOXF VS Specifications

General

Brand	Pentair
Model	WHISPERFLOXF VS
Category	Water Pump
Language	English