22
iCON iSOLAR 4” PDP Instruction Manual
8b. Trouble shooting chart
Problem
Possible cause
Pump does not start
Faulty pressure switch
Control box in sun or near heat source
Defective Hydraulic overload
Low voltage supply to motor (low solar irradiation)
iSOLAR V3 controller switching between energy
sources
No water delivered
Low solar irradiation
Water level too low in well
Inlet clogged
Broken pump shaft or coupling
Check valve installed backwards
Check valve stuck closed
Hole in delivery pipe below top of bore
Poor water delivery
Fittings stopping check valve opening fully
Water level too low in well
Discharge pipe clogged, corroded or ruptured
Pump installed too low in well and covered with sand or
other solids
Inlet screen partially clogged
Worn pump
Leak in outlet pipe below top of bore
Check valve stuck partially closed
Pump does not shut off
Pipe ruptured
Defective or improperly adjusted pressure switch
Water level too deep for pump. Check selection
Pump is air or gas bound
Worn pump
Pipe obstruction
Pumps starts more than
> 5 starts per hour
Incorrect pressure switch setting.
Pressure switch differential adjustment failure
Electric shock from water
pipe
Defective (grounded) incoming power leads
Defective control box
Earth wire connected to wrong control box terminal
Note: A motor down to earth or defective cable will not cause a
shock.
Pressure gauge oscillates,
flow surges (snoring)
Water level too low in the well.
(Flow through pump greater than flow into well)
Electrolysis on motor and
pump
Insufficient earth / earth leakage
Broken earth wire
NOTE: Always install borehole submersibles with ON/OFF switches and approved circuit
breaker(s) to protect against motor damage and electrocution
Warranty:
To be assessed for possible warranty, the motor must be returned with cable and joint intact.
White International require the cable be cut at least 100mm above the cable joint.
If more assistance is required, contact White International
