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MAINTENANCE
Troubleshooting
Code
Fault
F6
Short Circuit
F7
Overheated Drive
F8
Over Pressure
F9
Internal PCB Fault
F12
Overvoltage
F14
Broken Pipe
F15
Phase Imbalance
F16
Ground Fault
F19
Communication Fault • Cable connection between
38
Possible Cause
• When fault is indicated
immediately after power-up,
short circuit caused by a shorted
connection, defective cable,
splice, or motor
• High ambient temperature
• Direct sunlight
• Obstruction of airflow channel
• Measured pressure exceeds
setting
• 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 without 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
• Motor output cable is damaged
or exposed to water
• Phase to ground short
Control Board and Power Board
is loose or disconnected
• Internal circuit failure
Corrective Action
• 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
• If fault is present after resetting and removing motor leads,
replace drive
• The drive has exceeded max rated temperature, needs to drop
below 167 °F (75 °C) to restart
• Fans blocked or inoperable, ambient above 104 °F (40 °C),
direct sunlight, air flow channel blocked
• Replace fans or fan module; or relocate drive as necessary
• Remove debris from fan intake/exhaust
• Troubleshoot system to locate reason for high pressure
• Contact your Franklin Electric Service Personnel
• Unit may require replacement. If problem persists, note the
sub-fault number on the display before contacting the FE
Service Personnel.
• Line voltage high, greater than approximately:
- 290 VAC (normal 230 operating range = 190 to 260 VAC)
- 600 VAC (normal 460 operating range = 380 to 520 VAC)
• 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
• Phase imbalance and loss of phase may indicate similar issues
• Check motor cable insulation resistance with megger (while
not connected to drive). Replace motor cable if needed.
• Check cable connection between Control Board and Power
Board. The cable connection on the control board is located on
the back side of the control board.
• If problem persists, unit may require replacement. Contact your
supplier.
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