TROUBLESHOOTING
QUICK REFERENCE GUIDE
CONDITION
INDICA
TOR LIGHTS
POSSIBLE CAUSE
CORRECTIVE
ACTION
NO W
ATER
NONE
- No supply voltage present
- If correct voltage is present, replace drive
SOLID GREEN
- Pressure sensor circuit
- V
erify water pressure is below system set point
- Jumper wires together at pressure sensor
, if pump starts, replace sensor
- If pump doesn’t start, check sensor connection at printed circu
it board (PCB), if loose, repair
- If pump doesn’t start, jumper sensor connection at PCB, if pump
starts, replace wire
- If pump doesn’t start with sensor PCB connection jumpered, repl
ace drive
SOLID RED
OR
SOLID RED
AND GREEN
- Power surge, bad component
- Power system down to clear fault, verify voltage, if repetitive
, replace drive
FLASHING RED
- Fault detected
- Proceed to fault code description and remedy
FLASHING GREEN
- Drive and motor are operating
- Loose switch or cable connection
- Gulping water at pump inlet
- Frequency max, amps low
, check for closed valve, or stuck check valve
- Frequency max, amps high, check for hole in pipe
- Frequency max, amps erratic, check pump operation, dragging imp
ellers
- This is not a drive problem
- Check all connections
- Disconnect power and allow well to recover for short time, then
retry
PRESSURE
FLUCTUA
TIONS
(POOR REGULA
TION)
FLASHING GREEN
- Pressure sensor placement and setting
- Pressure gauge placement
- Pressure tank size and pre-charge
- Leak in system
- Air entrainment into pump intake
(lack of submergence)
- Correct pressure and placement as necessary
- T
ank may be too small for system flow
- This is not a drive problem
- Disconnect power and check pressure gauge for pressure drop
- Set deeper in the well or tank; install a flow sleeve with airti
ght seal around drop pipe and cable
- If fluctuation is only on branches before sensor
, flip DIP
switch #4 to “on” (07C and newer)
RUN ON
WON’T SHUT DOWN
FLASHING GREEN
- Pressure sensor placement and setting
- T
ank pre-charge pressure
- Impeller damage
- Leaky system
- Sized improperly (pump can’t build enough head)
- Check frequency at low flows, pressure setting may be too close
to pump max head
- V
erify precharge at 70% if tank size is larger than minimum, inc
rease precharge (up to 85%)
- V
erify that the system will build and hold pressure
RUNS BUT TRIPS
FLASHING RED
- Check fault code and see corrective action
- Proceed to fault code description and remedy on reverse side
LOW PRESSURE
FLASHING GREEN
- Pressure sensor setting, pump rotation,
pump sizing
- Adjust pressure sensor
, check pump rotation
- Check frequency at max flow
, check max pressure
HIGH PRESSURE
FLASHING GREEN
- Pressure sensor setting
- Shorted sensor wire
- Adjust pressure sensor
- Remove sensor wire at PCB, if drive continues to run, replace d
rive
- V
erify condition of sensor wire and repair or replace if necessa
ry
AUDIBLE NOISE
FLASHING GREEN
- Fan, hydraulic, plumbing
- For excessive fan noise, replace fan
- If fan noise is normal, drive will need to be relocated to a mo
re remote area
- If hydraulic, try raising or lowering depth of pump
- Pressure tank location should be at entrance of water line into
house
NO LIGHTS
NONE
- Ribbon cable detached from LED printed
circuit board
- Reattach cable - if cable is attached, replace drive
RFI-EMI INTERFERENCE
FLASHING GREEN
- See interference troubleshooting procedure
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