45
INTELLIFLO
®
VS+SVRS and INTELLIPRO
®
VS+SVRS Variable Speed Pump Installation and User’s Guide
44
INTELLIFLO
®
VS+SVRS and INTELLIPRO
®
VS+SVRS Variable Speed Pump Installation and User’s Guide
General Troubleshooting Problems
Use the following general troubleshooting information to resolve possible problems with the IntelliFlo
®
VS+SVRS pump.
Note:
Turn off power to unit prior to attempting service or repair.
Problem
Possible Cause
Corrective Action
Pump failure.
(For IntelliFlo pump alert
display messages, refer to
Alerts and Warning on page
43).
Pump will not prime - Air leak in
suction.
PRIME ERROR may be
displayed.
Pump will not prime - Not
enough water.
Pump does not come out of
prime.
Pump strainer clogged.
Pump strainer gasket defective.
Check suction piping and valve glands on any suction gate
valves.
Secure lid on pump strainer pot and make sure lid gasket is in
place.
Check water level to make sure skimmer is not drawing air.
Ensure that the suction lines, pump, strainer, and pump volute
are full of water.
Adjust prime sensitivity to a higher setting (default setting is 1%)
Clean pump strainer pot.
Replace gasket.
Reduced capacity and/or
head.
(For IntelliFlo pump alert
display messages, refer to
Alerts and Warning on page
43).
Air pockets or leaks in suction
line.
PRIME ERROR may be
displayed.
Clogged impeller.
PRIME ERROR may be
displayed.
Pump strainer clogged.
PRIME ERROR may be
displayed.
Check suction piping and valve glands on any suction gate
valves.
Turn off electrical power to the pump.
Remove the (6) bolts that holds the volute to the seal plate.
Slide the motor and seal plate away from the volute.
Clean debris from impeller. If debris cannot be removed,
complete the following steps.
1. Remove diffuser and O-ring.
2. Remove left hand thread anti-spin bolt and O-ring.
3. Remove, clean and reinstall impeller.
4. Reinstall anti-spin bolt and O-ring.
Reinstall diffuser, and O-ring.
Reinstall motor and seal plate into volute.
Reinstall (6) bolts around seal plate and volute and tighten
securely.
Clean suction trap.
Mechanical Troubles and
Noise.
The pump motor is running but
with loud noise.
Cavitation.
If suction and discharge piping are not adequately supported,
pump assembly 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.
Improve suction conditions. Increase pipe size. Decrease
number of fittings. Increase discharge pressure.
