11.2. Check System Messages
Note:
All errors can be manually reset by pressing Stop/Resume when the error message is shown, or by cycling
power applied to pump after the error has occurred. If the troubleshooting steps listed above do not help to resolve
the error condition, then the problem may be internal to the motor/drive. Contact Hayward Technical Service at
(908) 355-7995 for additional assistance.
USE ONLY HAYWARD GENUINE REPLACEMENT PARTS
_____________________________________________________________________________________
Hayward Flow Control
www.haywardflowcontrol.com
1-888-HAY-INDL (1-888-429-4635)
IS3401VSPFC Rev A 12/08/14
Pg. 35 of 36
Code
Troubleshooting
Check System
AC voltage too high
Indicates that the AC line voltage has risen above 270 VAC. Verify that line
voltage is within 10% (207-253 VAC) of pump rated voltage at the terminal block.
Check System
AC voltage too low
Indicates that the AC line voltage has dropped below 183 VAC. Verify that line
voltage is within 10% (207-253 VAC) 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
DC voltage too high
Indicates that the internal DC bus voltage has risen above 395 VDC. Verify that
line voltage is within 10% (207-253 VAC) of pump rated voltage at the terminal
block.
Check System
DC voltage too low
Indicates that the internal DC bus voltage has dropped below 270 VDC. Verify
that line voltage is within 10% (207-253 VAC) 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 Heat
sink overheated
Indicates that the heat sink of the drive has 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 the motor current is too high. Check impeller, diffuser, shaft seal, and
motor for issues. Motor connections to drive should be verified.
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 issues. Motor connections to drive should be verified.
Drive will attempt to start the motor 3 times before pump stall error is displayed.
Check System
Defaults loaded
Indicates that the drive memory has been temporarily corrupted. Contact
Hayward Technical Service for additional assistance.
Check System
Memory failed
Indicates that the drive memory has been damaged, and that the 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
drive. Connections between the user interface and the motor drive should be
verified.
Check System
Error code XX
Indicates that the user interface is receiving an error from the drive that it does
not understand. Contact Hayward Technical Service for additional assistance.
