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IS2303VSP3J Rev-A
Noisy Pump:
1.
Air leak in suction piping, cavitations caused by restricted or undersized suction line or leak at any joint, low water
level in pool, and unrestricted discharge return lines. Correct the suction condition or throttle return lines, if
practical. Holding your hand over the return fitting will sometimes prove this, or by putting in a smaller eyeball
fitting.
2.
Vibration due to improper mounting, etc. Mount the pump on a level surface and secure the pump to the
equipment pad.
3.
Foreign matter in the pump housing. Loose stones/debris hitting the impeller could be the cause. Clean the pump
housing.
4.
Motor bearings noisy from normal wear, rust, overheating, or concentration of chemicals causing seal damage,
which will allow chlorinated water to seep into bearings wiping out the grease causing bearing to whine. All seal
leaks should be replaced at once.
Interference With Home Automation/Power Line Communication Equipment:
1.
Make sure the terminal board connections agree with the wiring diagram on the pump data plate label.
2.
Check for and correct any improper or loose wiring connections.
3.
Install noise filter (from home automation/power line communication equipment vendor) to prevent equipment
interference.
11.2.
Check System Messages
Code
Troubleshooting
Check System
DC voltage too high
Indicates that the internal DC bus voltage is too high. Verify that line voltage is within 10%
of pump rated voltage at the terminal block.
Check System
DC voltage too low
Indicates that the internal DC bus voltage is too low. Verify that line voltage is within 10%
of pump rated voltage at the terminal block. Also, verify that power supply connections
are properly made at the circuit breaker as well as at the terminal block.
Check System
Drive is overheated
Indicates that the internal components of the drive have become overheated. Motor
airflow path should be checked for obstructions and cleared if present. Check ambient
temperature and verify against motor nameplate (50°C/122°F).
Check System
Drive overload
Indicates that motor current is too high. Check impeller, diffuser, shaft seal, and motor
for any issues or binding.
Check System
Pump has stalled
Indicates that the drive has lost control over motor shaft rotation. Check impeller,
diffuser, shaft seal, and motor for any issues or binding.
Check System
Pump failed to start
Indicates that the drive was not able to start the motor. Check impeller, diffuser, shaft
seal, and motor for any issues or binding.
Check System
Motor phase lost
Indicates that one of the motor phases is open and that the motor/drive may need to be
replaced. Contact Technical Service for additional assistance.
Check System
Processor failed
Indicates that there is a problem with the processor in the motor/drive, and that the
motor/drive may need to be replaced. Contact Technical Service for additional assistance.
Check System
Communication
failed
Indicates that there are communication problems between the user interface and
motor/drive. Connections between the user interface and motor/drive should be verified.
Check System
Memory failed
Indicates that the drive memory has been damaged or corrupted, and that the
motor/drive may need to be replaced. Contact Technical Service for additional assistance.
Check System
Drive comm failed
Indicates that there are communication problems inside the motor/drive, and that the
motor/drive may need to be replaced. Contact Technical Service for additional assistance.
Check System
Error code XX
Indicates that the user interface is receiving an error from the motor/drive that it does
not understand. Contact Technical Service for additional assistance.
Note: All errors can be manually reset by pressing Stop/Resume when the error message is shown, or by cycling power
applied to the pump after the error has occurred. Under certain circumstances, the “Drive overload” error can only be
reset by cycling power applied to the pump. If the troubleshooting steps listed above do not help to resolve the error
condition, then the problem may be internal to the motor/drive.
