Flint & Walling Constant Pressure Pumping Stations - ADW2W73 User Manual
Page 5
5
(FW1365)
95 North Oak St. • Kendallville, IN 46755 • 1-800-345-9422
tABle 3: DIAGnOStIc fAult cODeS
DISPlAy cODe
fAult
POSSIBle cAuSe
cOrrectIve ActIOn
Motor Underload
Air-locked pump. Overpumped
or dry well. Worn pump.
Damaged shaft or coupling.
Pump deadhead. Blocked pump
or screen.
Wait for well to recover and
automatic restart timer to time out.
If the problem does not correct,
check motor and pump. See
description of “Intelligent Reset” on
Page 18.
Water Over Temp
Pump running deadhead
because of transducer failure or
clogging of transducer pressure
point
Clean out pressure port of transducer
or replace transducer.
Undervoltage
Low line voltage. Misconnected
input leads.
Check for loose connections. Check
line voltage. Report low voltage
to the power company. Unit will
start automatically when the proper
power is supplied.
.
Short Circuit
When fault is indicated
immediately after power-
up, short circuit due to loose
connection, defective cable,
splice or motor.
Check motor wiring. Turn power off
till display darkens then apply power
again to reset.
.
Over Current
When fault is indicated while
motor is running, over current
due to loose debris trapped
in pump, or water demand
is exceeding pump & motor’s
capability.
Check pump.
.
(Number other than
0.0 & motor is not
running)
Open Circuit
Loose connection. Defective
motor or cable.
With power off, check motor, motor
wiring and splices. Make certain all
connections are tight. Apply power
again to reset.
. .
Overheated Controller
High ambient temperature.
Direct sunlight. Obstruction of
air-flow.
This fault automatically resets when
the temperature returns to a safe
level.
.
Controller Stopped
Loose jumper wire
Re-insert jumper wire into control
terminals B2 & B4.
c
Loss of Transducer Signal
Unconnected or failed
transducer
Reconnect or replace transducer
DIAGnOStIc fAult cODeS
Should an application or system problem occur, built-in
diagnostics will protect the system. The display will change
to indicate the nature of the fault. In some cases, the system
will shut itself off until corrective action has been taken. Fault
codes and the recommended corrective action for each are
listed in the following chart.
!
Do not attempt to carry out internal
repairs. Return a faulty drive to the
supplier for repair.