24
INTELLIPRO
®
2 VST Variable Speed Pump Installation and User’s Guide
TROUBLESHOOTING
Always disconnect power to the IntelliPro
®
2 VST Variable Speed
Pump at the circuit breaker and disconnect the communication
cable before servicing the pump. Failure to do so could result in death or serious injury to serviceman, pool users or others due to
electric shock. DO NOT attempt to adjust or service without consulting your dealer or a qualified pool technician. Read the entire
Installation & User’s Guide before attempting to use, service, or adjust the pool filtering system or heater.
Problem
Possible Cause
Corrective Action
Pump failure.
(For alert display
messages, refer to Alerts
and Warnings on page 23).
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 priming mode.
Pump completes priming mode too early, and/or
there is still a large amount of air in the housing
Pump stainer basket is clogged.
Pump strainer gasket is defective.
Check suction piping and valve glands on any
suction gate valves. Secure lid on pump strainer pot
and be sure lid gasket is in place. Check water level
to be sure skimmer is not drawing air.
Be sure the suction lines, pump, strainer, and pump
volute are full of water.
Adjust priming range to a higher setting
(default setting is 5).
Adjust priming range to a lower setting
(default setting is 5).
Clean pump strainer pot.
Replace gasket.
Reduced capacity and/
or head.
(For alert display
messages, refer to Alerts
and Warnings on page 23).
Air pockets or leaks in suction line.
PRIMING FAILURE may be displayed.
Clogged impeller.
PRIMING FAILURE may be displayed.
Pump strainer pot clogged.
PRIMING FAILURE 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 housing (strainer
pot/volute) to 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 reverse-thread impeller screw and o-ring.
3. Remove, clean and reinstall impeller.
4. Reinstall reverse-thread impeller screw and o-ring.
Reinstall diffuser, and o-ring.
Reinstall motor and seal plate into volute.
Reinstall seal plate nuts and volute and tighten
securely.
Clean suction trap.
Clean pump strainer pot.
Inadequate circulation.
(For alert display
messages, refer to Alerts
and Warning on page 23).
Filter or pump basket dirty.
Suction/discharge piping is too small.
Speed is set too slow for proper filtration cycle.
Check trap basket; if plugged, turn pump off and
clean basket.
Check and clean pool filter.
Increase piping size.
Increase filtration run time.
