Pentair WHISPERFLOXF VS Guía De Instalación Y Del Usuario página 25

Troubleshooting,
Problem
Pump runs without flow.
"LoFlo" or "HiFlo" alarm. Flowmeter 20-set setting is too high (Low Flow
Electrical problem.
Mechanical troubles and
noise.
Pump does not respond to
external controls.
WHISPERFLO
(continued)
Possible Cause
Impeller is loose.
Air leak.
Clogged or restricted plumbing or strainer basket. Check for blockage in strainer basket or suction side
alarm) or too low (High Flow alarm).
Could appear as a "000E" low voltage alarm.
Could appear as "0017" overheat alert.
The pump motor is running but with loud noise.
Foreign matter (gravel, metal, etc.) in pump
impeller.
Cavitation.
Speaking noise, especially evident at pump start-
up or slow down.
Improper external control, digital input or flow
control setup.
XF
®
VS and MAX-E-PRO
Corrective Action
Check that pump is spinning by looking at fan on back of
motor. If so, check that pump impeller is correctly installed.
Check plumbing connections and verify they are tight.
piping.
Check for blockage in discharge piping, including partially
closed valve or dirty pool filter.
Clean the pool filter, pump strainer basket and all skimmer
baskets. Recalibrate the flowmeter 20-set (refer to Flow
Mode Setup and Configuration on page 14).
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.
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.
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.
Disassemble pump, clean impeller, follow pump service
instructions for reassembly.
Improve suction conditions.
Increase pipe size.
Decrease number of fittings.
Increase discharge pressure.
Inspect motor slinger and motor shaft seal behind the
slinger (NOT the pump's shaft seal). Apply lubrication to the
motor shaft rubber seals.
Be sure that the digit input cable is connected at both ends.
XF
®
VS Commercial Variable Speed Pump Installation and User' s Guide
21