Pump Diagnosis & Repair

Borehole and water pump faults — level, hydraulics, delivery path and the electrical side down the hole. Most of the diagnosis belongs at the surface, because pulling a pump is expensive and hazardous and is frequently unnecessary once the water level has actually been measured.

Scope

• ▪No delivery and reduced flow
• ▪Water level, drawdown and borehole yield
• ▪Non-return valves and rising main faults
• ▪Hydraulic wear and sand abrasion
• ▪Drop cable, splice and motor testing
• ▪Dry-run protection and control

Diagnosis guides

• Borehole Pump Runs But Delivers No Water — Diagnosis and Repair

  Submersible borehole and well pumps, single- and three-phase, on direct-on-line, soft-start or variable-speed control

  9 diagnostic steps · advanced · qualified electrician

• Pump Runs Continuously and Will Not Shut Off

  Borehole, booster and transfer pumps under pressure-switch, level or variable-speed control

  8 diagnostic steps · intermediate · technician