Troubleshooting - Franklin Electric INLINE 400 Serie Manuel Du Propriétaire

Troubleshooting

The Inline 400 provides basic feedback regarding the system's current operational state. The product's LED
lights are integrated into the control head. Refer to
tive pattern representing operational state. The repetitive flashes can be counted to determine which fault
the unit is reporting.
Observed Condition
Unit will not turn on - No green or
red LED illuminated on control cap
Unit runs briefly, won't develop
pressure, then turns off
Unit won't start with demand for
water
Unit continuously cycles ON/OFF
(Rapid Cycle)
Unit won't turn on
Unit runs or cycles continuously
NOTE: The motor in this Inline 400 unit contains thermal protection that responds to motor current and heat from the motor winding and ambient
temperature. When the combination of current and heat exceeds a pre-determined point, the thermal protector opens and interrupts the circuit.
When the winding temperature returns to a more normal level, the thermal protector will automatically reset.
"Status Display" on page
Indicator Lights
Circuit breaker tripped or
None
turned off
Flashing Green 10 sec-
onds, then flashing Red
Insufficient water or prime
1 flash,
1 second pause
Rapid Green flash, 2
Inlet water pressure above
blinks per second,
40 psi (2.8 bar)
1 second pause
Improper charge pressure
in tank
Flashing Green
Check valve between tank
and unit
Solid Red Unit is turned OFF
Flashing Red, 1 Flash,
Dry Run Fault
1 Second Pause
Overvoltage (input voltage
Flashing Red,
higher than +10%)
2 Flashes,
Undervoltage (input volt-
1 Second Pause
age lower than -10%)
Flashing Red,
Flow Sensor Component
3 Flashes,
Failure
1 Second Pause
Flashing Red,
4 Flashes, Temperature sensor fault
1 Second Pause
Flashing Red,
Overheating due to exces-
5 Flashes,
sive water temperature
1 Second Pause
Continuous hot water
Flashing Red,
detected above thermal
6 Flashes,
limit when unit is not run-
1 Second Pause
ning
Leak or usage exceeds
½ gpm(1.9 lpm) in system
plumbing
Internal non-return (check)
Flashing Green
valve is blocked or dam-
aged
Internal flow piston is stuck
open
15. The LED flashes in a repeti-
Possible Cause
• Turn on the circuit breaker.
• Consult a licensed electrician to properly wire the
Outlet/Junction Box.
• Check water supply, valving, and priming sections
of this manual for additional information.
• Install a pressure reducing valve on inlet to reduce
inlet pressure, or wait for the inlet pressure to fall
below 40 psi (2.8 bar).
• Set the pressure in pressure tank to 2 psi lower than
cut-in pressure.
• Place check valve after pressure tank.
• Press the push button on the user interface.
• Check inlet water supply and valving.
• Make sure outlet pressure switch setting is not
adjusted too high.
• Consult a licensed electrician to check the supply
voltage and correct.
• Consult a licensed electrician to check the supply
voltage and correct.
• Consult professional for replacement parts or unit.
• Consult professional for replacement parts or unit.
• Supply cold water to the pump.
• Improper hot water application of unit. Supply cold
water to the pump.
• Repair all plumbing leaks.
• Place a new non-return (check) valve before Inline
400 unit in INLET plumbing.
• Clean the flow piston (see
Piston" on page
MAINTENANCE
Troubleshooting
Corrective Action
"Cleaning the Flow
17)
19