3
POSSIBLE WORKING DEFECTS
TYPE OF DEFECT
CAUSE
SOLUTION
-The pump does not start
-The electronic card is broken
-Voltage failure
-Pump jammed
-Electric
cables
inverted
(line/motor)
-Pressure of inlet water is
higher than
the
starting
pressure of the pump
-Replace the controller
-Use at rated voltage
-Clean the impeller
-Install according to manual
-No action should be taken
-The pump does not stop
-The pump is over pressure
-The electronic card is broken
-The flow detector is blocked
in the upper position
-The reset button is blocked
-The pump does not provide
sufficient pressure
-Presence of leaks
-Adjust the pressure screw
behind
the
controller
counterclockwise ( - ) to
release the pressure
-Replace the controller
-Replace the controller
-Replace the controller
-Replace the controller
-Fix the leakage
-Intermittent pump working
-The electronic card is broken
-The pump does not provide
sufficient pressure
-Presence of leaks
-Replace the controller
-Replace the controller
-Fix the leakage
-The pump is jammed
-The electronic card is broken
-The pump provides a pressure
which is lower than the
restarting pressure
-Water failure
-Suction problem
-Replace the controller
-Replace the controller
-Install according to manual
-Clean the inlet and impeller
-The pump has no suction
-The distance between pump
and water surface is beyond
the max head of the pump
-Leakage on the inlet tube, air
in
-Starting without water in the
pump body
-Shorten the distance between
pump and water
-Fix the inlet leakage
-Fill water in the pump body
before starting. Make sure the
check valve has no leakage.
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