AIM Manual

Electronic Maintenance » Electronic Controls (Page 66)

SubDrive/MonoDrive Troubleshooting (Continued)

SubDrive15, 20, 30, MonoDrive, and MonoDriveXT (NEMA 3R)

Diagnostic Fault Codes
NUMBER OF FLASHESFAULTPOSSIBLE CAUSECORRECTIVE ACTION
F14BROKEN PIPE- Broken pipe or large leak is detected in the system
- Drive runs at full power for 10 minutes without reaching pressure setpoint
- Large water draw, such as a sprinkler system, does not allow system to reach pressure setpoint
- Check system for large leak or broken pipe
- If the system contains a sprinkler system or is being used to fill a pool or cistern, disable the Broken Pipe Detection
F15
(SD15/20/30 only)
PHASE IMBALANCE- Motor phase currents differ by 20% or more.
- Motor is worn internally
- Motor cable resistance is not equal
- Incorrect motor type setting (single- or three-phase)
- Check resistance of motor cable and motor windings
- Verify motor type matched drive settings (single- or three-phase)
F16GROUND FAULT- Motor output cable is damaged or exposed to water
- Phase to ground short
- Check motor cable insulation resistance with megger (while not connected to drive). Replace motor cable if needed.
F17INVERTER TEMPERATURE SENSOR FAULT- Internal temperature sensor is malfunctioning- Contact your Franklin Electric Service Personnel
- If problem persists, unit may require replacement. Contact your supplier.
F18 (SD20/30/MDXT only)PFC TEMPERATURE SENSOR FAULT- Internal temperature sensor is malfunctioning- Contact your Franklin Electric Service Personnel
- If problem persists, unit may require replacement. Contact your supplier.
F19COMMUNICATION FAULT- Cable connection between Display/Wi-Fi Board and Main Control Board is loose or disconnected
- Internal circuit failure
- Check cable connection between Display/Wi-Fi Board and Main Control Board.
- If problem persists, unit may require replacement. Contact your supplier.
F22DISPLAY/WI-FI BOARD EXPECTED FAULT- Connection between Display/Wi-Fi Board and Main Control Board was not detected at drive start-up- Check cable connection between Display/Wi-Fi Board and Main Control Board.
- If problem persists, unit may require replacement. Contact your supplier.
F23MAIN BOARD STARTUP FAULT- A fault was found internal to drive- Contact your Franklin Electric Service Personnel
- Unit may require replacement. Contact your supplier.
F24INVALID DIP SWITCH SETTING- No DIP Switch set or more than one (1) DIP Switch set for Motor size
- No DIP Switch set or more than one (1) DIP Switch set for Pump size
- Invalid combination of DIP switches for drive type (SD or MD mode), Motor hp, and Pump hp.
- Check DIP switch settings
  • Power down, disconnect leads to the motor and power up the SubDrive:
  • - If the SubDrive does not give an “open phase” fault (F5), then there is a problem with the SubDrive.
  • - Connect the SubDrive to a dry motor. If the motor goes through DC test and gives “underload” fault (F1), the SubDrive is working properly.