Maintenance; Troubleshooting; System Diagnostics Fault History; Diagnostic Fault Codes - Franklin Electric SubDrive 15 Manuel Du Propriétaire

MAINTENANCE

Troubleshooting

System Diagnostics Fault History

The SubDrive/MonoDrive continuously monitors system performance and can detect a variety of
abnormal conditions. In many cases, the drive will compensate as needed to maintain continuous
system operation; however, if there is a high risk of equipment damage, the drive will stop the sys-
tem and display the fault condition. If possible, the drive will try to restart itself when the fault con-
dition subsides. Each time a fault is detected in the system, the drive records the fault with the date
and time the fault was detected. A maximum of 500 events are recorded and can be viewed and
emailed using the FE Connect mobile app.
Refer to "Logs" on page

Diagnostic Fault Codes

Code Fault
Motor Underload
F1
Undervoltage
F2
Overcurrent or
F3
Locked Pump
F4 Incorrectly Wired
40.
Possible Cause
• Over-pumped well
• Broken shaft or coupling
• Blocked screen, worn pump
• Air/gas locked pump
• SubDrive not set properly for
pump end
• Underload Sensitivity setting
incorrect
• Low line voltage
• Misconnected input leads
• Loose connection at breaker or
panel
• Motor and/or pump
misalignment
• Dragging motor and/or pump
• Motor and/or pump locked
• Abrasives in pump
• Excess motor cable length
• MonoDrive and XT only
• Wrong resistance values on main
and start
Corrective Action
• Frequency near maximum with load less than configured
underload sensitivity (Potentiometer or Wi-Fi)
• System is drawing down to pump inlet (out of water)
• High static, light loading pump - reset Potentiometer for
less sensitivity if not out of water
• Check pump rotation (SubDrive only) reconnect if
necessary for proper rotation
• Air/gas locked pump - if possible, set deeper in well to
reduce
• Verify DIP switches are set properly
• Check Underload Sensitivity Setting (Potentiometer or
Wi-Fi setting, whichever is applicable)
• Line voltage low, less than approximately 150 VAC (normal
operating range = 190 to 260 VAC)
• Check incoming power connections and correct or tighten
if necessary
• Correct incoming voltage - check circuit breaker or fuses,
contact power company
• Amperage above SFL at 30 Hz
• Remove and repair or replace as required
• Reduce motor cable length. Adhere to Maximum Motor
Cable Length table.
• Wrong resistance on DC test at start
• Check wiring, check motor size and DIP switch setting,
adjust or repair as needed
MAINTENANCE
Troubleshooting
43