ITT GOULDS BF15 Manual Del Usuario página 7

No. of Fault and Action
Flashes
1 Dry well
Action: Controller shuts
down. After 10 minutes,
fault is cleared and
controller restarts. As
long as dry well condition
exists, this fault will
repeat.
2 Waterlogged Tank
Action: Controller
continues to run while
displaying fault. Fault is
cleared when pump turns
off (no flow) and back on.
If waterlogged condition
still exists, the fault will
re-occur.
3 Pressure Sensor Fault
4 Bound Pump or
Motor Failure
Action: Controller shuts
off and stays off. Fault
can only be cleared by
turning power off for
1 minute. If cause of fault
persists then fault will
re-occur.
5 Short Circuit
Action: Controller shuts
off and stays off. Fault
can only be cleared by
turning power off for
1 minute. If cause of fault
persists then fault will
re-occur.
6 Ground Fault
Action: Controller shuts
off and stays off. Fault
can only be cleared by
turning power off for
1 minute. If cause of fault
persists then fault will
re-occur.
Cause and Reaction
This fault can be caused by:
• Water level in well falls below suction inlet of pump.
• Incorrect DIP switch setting.
• Pump may be running backwards. See "Checking Rotation" in section 5 above.
• Plugged suction screen.
• Restriction in pipe between pump and pressure sensor.
• Air bound pump – see "Purging System."
This fault is triggered by a large drop in pressure before pump has a chance to get up
to speed. The fault is only a warning and will clear itself, if the fault conditions are
gone, the next time the motor starts. The fault indicates the possibility that the
pressure tank is not pre-charged correctly. Before measuring the tank pre-charge
pressure, turn power off to the controller and drain system pressure by opening a
valve. Pre-charge should be adjusted to 10 PSI below system pressure setting. This
fault does not necessarily mean there is a problem. Often this fault results from having
too small a tank to accommodate the rapid changes in flow caused by some valves.
For example, operating a quarter turn valve or yard hydrant can cause a rapid and
large change in flow triggering this fault.
This fault can be caused by:
– Disconnected pressure sensor. Unplug and re-plug sensor to ensure it is connected.
– Vacuum applied to sensor. Piping flowing downhill from the sensor can pull a
vacuum while pump is on or off. The other possibility is that the bladder in the
pressure tank bottoms out causing a momentary vacuum spike. Using a larger tank or
flow-limiting device downstream from the tank may solve this problem.
– Broken or loose wire in the sensor cable. Check for loose wires where the pressure
sensor cable connects to the circuit board by tugging on each wire. Also check that
the wires are connected to the right terminals on this same connector. The correct
location of the wires is indicated on the circuit board B=Black, R=Red, W=White.
– Failed pressure sensor. While power is on, measure the DC voltage between the
black and white wires of the pressure sensor cable where they connect to the circuit
board. The voltage should be between 0.5 - 4.5VDC.
This fault can be caused by:
– Mechanical binding of the pump or motor.
– Electrical failure of the motor
– This fault will also be caused by having the wrong motor selected See section 3
Start-Up, Motor Selection Switch to verify proper switch setting. Be sure to turn off
power before changing switch settings.
Verify fault by turning the power off for a minute and then back on. Pump/Motor
must be replaced if fault persists.
Motor wire conductors touching each other between the controller and the motor
can cause this fault. If the wires are always touching, this fault will show up as soon
as the controller is powered up. If the wires sometimes touch during operation, then
the controller will attempt to re-start 3 times before shutting down and displaying this
fault. This fault will also be caused by having the wrong motor selected See section 3
Start-Up, Motor Selection Switch to verify proper switch setting. Be sure to turn off
power before changing switch settings. Binding of the pump may also cause this fault.
Incorrect tank pre-charge can also cause this fault. Before measuring the tank
pre-charge pressure, turn power off to the controller and drain system pressure by
opening a valve. Pre-charge should be adjusted to 10 PSI below system pressure
setting.
Motor wires shorting to ground can cause this fault. Check motor wires as
follows: Turn off power, and wait 5 minutes
Note motor wire color positions on terminal block
Remove the three motor wires from terminal block and measure the resistance of
these wires to ground using a "megger". A "megger" is a high voltage ohmmeter. A
reading less than 200k Ohms indicates faulty insulation in the buried cable, drop
cable, or motor. Test each to determine the location of the fault.
Table 3: Fault Blink Codes
(continued on next page)
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