USE ONLY HAYWARD GENUINE REPLACEMENT PARTS
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2.70 THP VS Pump Family
IS3206VSP3 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, or that the drive
was not able to start the motor after 3 attempts. Motor connections to drive should
be verified.
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 Hayward 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 Hayward 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.
