MAINTENANCE
Troubleshooting
T T a a b b l l e e 1 1
( ( c c o o n n t t i i n n u u e e d d ) )
Codes
Fault
F F 6 6
Short Circuit
F F 7 7
Overheated Drive •
F F 8 8
Overpressure
F F 9 9
Internal PCB
Fault
F F 1 1 2 2
Overvoltage
F F 1 1 4 4
Broken Pipe
F F 1 1 5 5
Phase Imbalance •
F F 1 1 6 6
Ground Fault
F F 1 1 7 7
Inverter
Temperature
Sensor Fault
F F 1 1 8 8
PFC
Temperature
Sensor Fault
F F 1 1 9 9
Communication
Fault
F F 2 2 2 2
Display/Wi-Fi
Board Expected
Fault
F F 2 2 3 3
Main Board Start-
up Fault
44
Possible Causes
•
When fault is indicated immediately after
power-up, short circuit caused by a shorted
connection, defective cable, splice, or motor
•
Amperage exceeded 25 amps on DC test at
start or SF amps during running
•
Incorrect output wiring, phase to phase
short, phase to ground short in wiring or
motor
High ambient temperature
•
Direct sunlight
•
Obstruction of airflow channel
•
Fan blocked or inoperable, ambient above
122 °F (50 °C)
•
System pressure exceeded pressure setpoint
by the overpressure offset (30 PSI default)
•
A fault was found internal to drive
•
High line voltage
•
Internal voltage too high
•
Broken pipe or large leak is detected in the
system
•
Drive runs at full power for 10 minutes with-
out reaching pressure setpoint
•
Large water draw, such as a sprinkler system,
does not allow system to reach pressure
setpoint
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)
•
Motor output cable is damaged or exposed
to water
•
Phase to ground short
•
Internal temperature sensor is
malfunctioning
•
Cable connection between Control Board and
Power Board is loose or disconnected
•
Internal circuit failure
•
A fault was found internal to drive
Corrective Action
•
Check wiring and fix as necessary
•
If fault is present after resetting and removing motor
leads, replace drive
•
Wait until drive temperature drops below 194 °F (90 °C)
to restart
•
Replace fans or fan module; or relocate drive as necessary
•
Remove debris from fan intake/exhaust
•
Remove and clean optional air screen kit (if installed)
•
System will restart when system pressure drops below
pressure setpoint and drawdown setting.
•
Adjust pressure transducer location.
•
Adjust pressure tank precharge or sizing.
•
Adjust system response.
•
Contact your Franklin Electric Service Personnel
•
Unit may require replacement. Contact your supplier.
•
Check incoming power connections and correct or tighten
terminals if necessary
•
If line voltage is stable and measured below 260 VAC and
problem persists, contact your Franklin Electric Service
Personnel.
•
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.
•
Check resistance of motor cable and motor windings.
•
Verify motor type matched drive settings (single- or
three-phase)
•
Check motor cable insulation resistance with megger
(while not connected to drive). Replace motor cable if
needed.
•
Contact your Franklin Electric Service Personnel
•
If problem persists, unit may require replacement. Contact
your supplier.
•
Check cable connection between Display/Wi-Fi Board and
Main Control Board.
•
If problem persists, unit may require replacement. Contact
your supplier.
•
Contact your Franklin Electric Service Personnel
•
Unit may require replacement. Contact your supplier.