Should an application or system problem occur, built-in diagnostics will protect the system . The red "FAULT" light on the front of the
controller will flash and a fault condition will be shown on the display . 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 table . To view the trip
codes in the recent trip log, press and hold the UP & DOWN keys at the same time for 1 second . The log will show the last 20 trips as
well as the time in days, hours & minutes since the trip occurred . (Note: the trip time will only increment while the drive has power .) If
no trips have been recorded, "No Fault" will be displayed in the log .
Fault
APPLIES ONLY TO TRANSDUCER
KEY:
APPLIES ONLY TO PRESSURE SWITCH
APPLIES TO EITHER OPTION
Shorted motor cables
Shorted motor
Short circuit
Damaged wire insulation
Internal hardware short
Motor/pump misaligned
Bound pump
Locked Rotor
Open leg/connection
(Rev . F)
Transducer Found
Drive set for Switch control, but a
(Switch Control)
transducer signal was detected.
Drive has detected a short circuit between
Transducer Short
S1 & S2 terminals
(Transducer Control)
Switch is hooked up between S1 & S2
Transducer lead not connected properly to
transducer (or cut)
Loose connection on terminals S1 & S2
Transducer Open
Transducer lead wire backwards at S1 & S2
(Transducer Control)
terminals
Switch is hooked up between S1 & S2
Transducer failed as an open circuit
Pump running against a closed discharge Make sure that there is not a valve closed or obstruction
Deadhead
Damaged or clogged pressure switch
(Switch control)
Deadhead sensitivity incorrect
Underload sensitivity incorrect
Over pumped/dry well
Underload
Blocked pump screen
(Transducer Control)
Broken pump shaft
Worn pump
Pipe has not filled
Low PSI
Valve closed between pump & transducer
(Transducer Control)
Clogged Pressure transducer
Damaged or inoperative transducer
Water pressure measured 85% or higher of
transducer range
Overpressure (Transducer
Control)
Transducer lead wire backwards at S1 & S2
terminals
Transducer failed and producing a high-
pressure signal
Over pumped/dry well
Blocked pump screen
Dry Well
(Switch Control)
Broken pump shaft
Worn pump
Low line voltage
Under Voltage
Power was removed from Drive
Loose connection
(Color) Leg Open
Defective splice
Defective cable
(Rev A to E)
Open motor winding
SYSTEM TRIP CODE TROUBLESHOOTING
Possible Causes
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Corrective Action
Check motor wires and drop cable for shorts or bad connections
Replace motor
Check drop cable for insulation damage
If motor is disconnected and the fault is present when reset, replace drive .
Verify pump is mounted flush on motor mounting flange .
Check for debris in pump
Disconnect motor from drive and Ohm check motor and drop cable .
Repair any break in drop cable, defective splice or replace motor .
Change drive control choice from Switch to Transducer in Control
Choice menu
Internal short of transducer . Replace transducer .
Replace switch with transducer .
Check transducer lead connection and/or replace transducer lead wire .
Check transducer lead connection at drive terminals S1 & S2
Switch transducer leads at S1 & S2
Replace switch with transducer .
Replace transducer
between the pump and pressure switch
Check continuity across switch contacts without wire connected
and replace and/or clean pressure port
Adjust deadhead sensitivity in Underload Protection menu
Adjust underload sensitivity in Underload Protection menu
Wait for well to recover and automatic restart timer to time out
Clear pump screen
Replace pump shaft (or pump)
Replace pump
Reset pipe fill mode in Menu #10 Control Settings and increase fill time if
necessary .
Open valve between pump & transducer .
Check transducer for pressure port & clean
Replace transducer
System pressure can spike for rapidly closing valves . Drive will
automatically reset and start running the motor when the drawdown
pressure is reached and at least 10 seconds have passed since the trip
occurred .
Switch transducer leads at S1 & S2
Replace transducer
Wait for well to recover and automatic restart timer to time out
Clear pump screen
Replace pump shaft (or pump)
Replace pump
Check line voltage Report low voltage to the power company
Check voltage is present on all input lines & connections secure
Check connections on drive motor terminals for leg specified
Check all splice connections on drop cable for leg specified
Check continuity of drop cable for leg specified
Replace motor
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