1. Air trapped in suction line

Air pockets prevent the pump from creating proper vacuum pressure.

Solution:

• Re-prime the pump
• Tighten all suction pipe joints
• Check for leaks

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2. Dry running condition

If the pump starts without water, it cannot generate flow.

Solution:
Install a dry-run protection switch or automatic controller.

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3. Clogged inlet or impeller

Dirt, sand, or rust particles can block water flow.

Solution:

• Clean pump inlet
• Remove and inspect impeller
• Install a filter system

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4. Low water source level

If water level is too low, the pump cannot draw water effectively.

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Modern solution (Industry trend)

Many users are switching to:

• Permanent magnet motor pumps
• Solar water pump systems
• Smart LCD controlled pumps

These systems reduce failure rate and improve long-term stability.