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MAINTENANCE
Troubleshooting
19
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
. The LED flashes in a repeti
-
tive pattern representing operational state. The repetitive flashes can be counted to determine which fault
the unit is reporting.
Observed Condition
Indicator Lights
Possible Cause
Corrective Action
Unit will not turn on - No green or
red LED illuminated on control cap
None
Circuit breaker tripped or
turned off
• Turn on the circuit breaker.
• Consult a licensed electrician to properly wire the
Outlet/Junction Box.
Unit runs briefly, won’t develop
pressure, then turns off
Flashing Green 10 sec
-
onds, then flashing Red
1 flash,
1 second pause
Insufficient water or prime
• Check water supply, valving, and priming sections
of this manual for additional information.
Unit won’t start with demand for
water
Rapid Green flash, 2
blinks per second,
1 second pause
Inlet water pressure above
40 psi (2.8 bar)
• 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).
Unit continuously cycles ON/OFF
(Rapid Cycle)
Flashing Green
Improper charge pressure
in tank
• Set the pressure in pressure tank to 2 psi lower than
cut-in pressure.
Check valve between tank
and unit
• Place check valve after pressure tank.
Unit won’t turn on
Solid Red
Unit is turned OFF
• Press the push button on the user interface.
Flashing Red, 1 Flash,
1 Second Pause
Dry Run Fault
• Check inlet water supply and valving.
• Make sure outlet pressure switch setting is not
adjusted too high.
Flashing Red,
2 Flashes,
1 Second Pause
Overvoltage (input voltage
higher than +10%)
• Consult a licensed electrician to check the supply
voltage and correct.
Undervoltage (input volt
-
age lower than -10%)
• Consult a licensed electrician to check the supply
voltage and correct.
Flashing Red,
3 Flashes,
1 Second Pause
Flow Sensor Component
Failure
• Consult professional for replacement parts or unit.
Flashing Red,
4 Flashes,
1 Second Pause
Temperature sensor fault
• Consult professional for replacement parts or unit.
Flashing Red,
5 Flashes,
1 Second Pause
Overheating due to exces
-
sive water temperature
• Supply cold water to the pump.
Flashing Red,
6 Flashes,
1 Second Pause
Continuous hot water
detected above thermal
limit when unit is not run
-
ning
• Improper hot water application of unit. Supply cold
water to the pump.
Unit runs or cycles continuously
Flashing Green
Leak or usage exceeds
½ gpm(1.9 lpm) in system
plumbing
• Repair all plumbing leaks.
Internal non-return (check)
valve is blocked or dam
-
aged
• Place a new non-return (check) valve before Inline
400 unit in INLET plumbing.
Internal flow piston is stuck
open
• Clean the flow piston (see
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.
Содержание 92061501
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