5
4. TROUBLE SHOOTING
PROBLEM
POSSIBLE CAUSE SOLUTION
Pump does not
run
Check connections and power supplyNo power
Pump runs with
no output
Motor overheating due to:
i) Liquid temperature being too high
ii) Blocking by foreign bodies
Eliminate the cause of overheating
Residual current circuit breaker
triggered
Reset circuit breaker
Check motorMotor defective
Clear blockage
Suction openings blocked
Keep the pump at an angle while
submerged
Pump drawing in air
Clean the suction area
Pump blocked by foreign bodies
Flow rate
insufficient
Readjust to allowable delivery heightDelivery height too big
Use pressure line with larger diameterPressure line diameter too small
Clean suction openingSuction openings blocked
Straighten pressure linePressure line kinked
Seal pressure line, tighten threaded
connections
Pressure line leaks
Pump runs very
loudly
Keep the pump at an angle when
submerged
Ensure there is sufficient water at
suction
Pump drawing in air
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