BOREHOLE PUMP TROUBLESHOOTING – 0723763173
When a borehole pump develops a fault, the result can be an interrupted water supply, low pressure, slow tank filling, or complete system failure. Identifying the underlying cause is essential before deciding whether the pump needs servicing, electrical repairs, component replacement, or a more detailed borehole assessment.
Pro-Logic Technologies Limited provides technical support for borehole pump troubleshooting, fault diagnosis, electrical inspections, performance testing, and maintenance planning. We help customers investigate water supply problems affecting homes, farms, schools, residential developments, commercial buildings, and industrial facilities.
Borehole pumping systems combine mechanical, electrical, hydraulic, and automatic control components. A pump may stop working because of a failed motor, but similar symptoms can also result from a faulty contactor, defective level sensor, damaged cable, blocked delivery pipe, or unsuitable operating conditions.
Effective borehole pump troubleshooting therefore begins with a systematic assessment of the entire installation rather than immediately replacing the submerged pump.
For borehole pump troubleshooting and technical assistance, contact Pro-Logic Technologies Limited on 0723763173 or visit https://prologictecnologies.co.ke.
WHY BOREHOLE PUMP DIAGNOSTICS ARE IMPORTANT
Troubleshooting helps identify why a system is not delivering the expected water supply. Without proper diagnosis, replacing a pump may fail to solve the problem if the actual cause lies elsewhere.
For example, a pump that cannot fill a tank may be affected by a faulty level controller. A pump that trips repeatedly may have an electrical fault. A system with reduced flow may be affected by a restriction, leakage, pump wear, or excessive drawdown.
A structured diagnostic process helps to:
- Identify the likely source of a fault.
- Reduce unnecessary replacement of components.
- Determine whether pump removal is justified.
- Assess whether flow and pressure meet the intended requirements.
- Identify unsafe electrical or operating conditions.
- Establish appropriate repair and maintenance priorities.
BOREHOLE PUMP NOT STARTING
A pump that fails to start may have an electrical supply problem, a defective control component, or a fault in the motor circuit.
Possible causes
The problem may involve a tripped protective device, failed contactor, damaged cable, defective pressure switch, faulty tank-level sensor, incorrect controller settings, or motor failure.
Diagnostic approach
The technician should establish whether the electrical supply is available and whether the control system is requesting the pump to operate. The relevant protective devices and control signals can then be checked using suitable procedures.
If the external components function correctly, further testing may be required to assess the cable and motor.
Do not repeatedly reset a breaker without investigating why it has tripped. Electrical diagnosis should be carried out by qualified personnel.
BOREHOLE PUMP RUNNING WITHOUT DELIVERING WATER
When the motor operates but water does not reach the outlet, the system requires prompt investigation.
Possible causes include a low pumping water level, blocked pump inlet, damaged hydraulic components, a leaking or disconnected rising main, or a valve that is incorrectly positioned.
The technician should verify the available water level and inspect the accessible delivery system. Flow and pressure measurements may help establish whether water is being pumped and whether it is reaching the intended destination.
If the pump may be running without adequate water, stop it to reduce the risk of damage.
LOW BOREHOLE WATER FLOW
Reduced flow can develop gradually or occur suddenly. The correct diagnosis depends on the operating history and measured conditions.
Possible causes include worn pump components, a restricted pipe, leakage, a blocked filter, changes in borehole water level, or a pump operating outside its suitable performance range.
A flow test should be compared with previous readings where available. Pressure and pumping water level should also be checked when relevant.
If the borehole water level falls substantially during pumping, the pumping rate may need to be reviewed against the borehole's sustainable capacity.
LOW WATER PRESSURE
Low pressure may affect household plumbing, irrigation systems, elevated tanks, and commercial water distribution networks.
Potential causes include inadequate pump head, pipe restrictions, leakage, defective pressure controls, high water demand, or excessive friction losses.
For properties with multiple floors, the elevation of the delivery point must be considered. Pressure available at ground level may differ from pressure available at an upper-floor outlet.
Measuring pressure at appropriate locations, alongside flow where possible, helps narrow down the cause.
BOREHOLE PUMP TRIPPING FREQUENTLY
Repeated electrical trips are a warning sign that should not be ignored.
Possible causes include motor overload, damaged cable insulation, a short circuit, moisture ingress, unsuitable supply conditions, phase imbalance, or incorrect protection settings.
The system should be safely isolated before electrical inspection. A qualified technician can check the supply, motor circuit, protective devices, and relevant connections.
Repeatedly resetting the protective device without identifying the fault can lead to further equipment damage or electrical hazards.
BOREHOLE PUMP STARTING AND STOPPING REPEATEDLY
Frequent cycling can increase wear on the pump and motor and may indicate a problem with the control system.
Possible causes include a leaking distribution network, defective pressure switch, faulty tank-level sensor, an incorrectly sized pressure vessel, or unsuitable control settings.
The diagnostic process should establish what triggers each start and stop. For example, a tank-based system should be assessed differently from a pressurised water supply.
Adjusting the control settings without checking the cause may not solve the problem.
DIAGNOSING BOREHOLE PUMP ELECTRICAL FAULTS
Electrical faults may occur in the supply, control panel, cable, motor, or protective equipment.
Power supply checks
Verify that the supply matches the motor requirements. Voltage conditions and phase arrangement should be checked where applicable.
Control panel inspection
Inspect accessible components such as contactors, relays, overload devices, and control wiring. Look for damage, overheating, moisture, or other signs of abnormal operation.
Cable testing
The pump cable and its joints may require inspection or electrical testing. Any repair must use components suitable for the installation and the manufacturer's requirements.
Motor assessment
If external equipment and the cable have been assessed, further testing may be required to investigate motor insulation or winding faults.
Electrical measurements must be interpreted in the context of the motor specifications and test procedure.
DIAGNOSING MECHANICAL PUMP FAULTS
Mechanical faults affect the pump's ability to move water efficiently.
Worn hydraulic components
Wear may reduce the pump's ability to produce the expected flow or head. The diagnosis may require reviewing operating conditions and, where justified, removing the pump for inspection.
Blocked pump inlet
Sediment or other material can restrict the water entering the pump. Persistent blockage may also indicate a borehole-related issue that needs investigation.
Defective non-return valve
A faulty non-return valve may allow water to flow backwards when the pump stops, potentially causing pressure loss or other operating problems.
Damaged delivery pipework
A leaking or disconnected rising main can prevent water from reaching the surface even when the pump is operating. The diagnosis should consider the pump and the complete delivery route.
BOREHOLE PUMP CONTROL SYSTEM DIAGNOSTICS
Automatic controls are essential for many borehole installations.
Faulty tank-level sensors
A defective sensor or float switch may prevent the pump from starting when the tank is low or stopping when the tank is full.
Pressure switch problems
A pressure switch may fail to respond correctly, causing poor pressure control or repeated cycling. The pressure vessel and distribution system should also be checked where applicable.
Variable-frequency drive faults
Where a variable-frequency drive controls the pump, review the recorded fault indications, supply conditions, motor parameters, cooling, and control signals.
Do not change drive parameters without understanding the motor, pump, and system requirements.
Dry-run protection
Dry-run protection helps prevent operation when there is insufficient water for safe pumping. Its operation should be checked according to the manufacturer's approved procedure.
FLOW, PRESSURE AND WATER-LEVEL DIAGNOSTICS
These measurements provide valuable information about the performance of a borehole pumping system.
Flow rate indicates the volume of water delivered over a known period. A lower-than-expected result may point to pump wear, restrictions, leakage, or unsuitable operating conditions.
Pressure indicates the pressure available at a selected point. The result should be interpreted alongside the flow rate and system layout.
Pumping water level indicates how the borehole responds while water is being withdrawn. A significant decline may require the pumping rate and borehole conditions to be reviewed.
Taken together, these measurements help distinguish a pump fault from a pipework problem or a limitation in the borehole's available water supply.
WHEN DOES BOREHOLE PUMP TROUBLESHOOTING REQUIRE PUMP REMOVAL?
Pump removal is not always the first step. Many problems can be investigated at the surface, including control-panel faults, pressure-switch problems, defective level sensors, and visible pipework leaks.
Removal may be justified when the evidence indicates an internal mechanical fault, motor damage, cable problems that require inspection, or another issue that cannot be resolved through accessible checks.
The operation should use suitable lifting equipment and safe handling procedures. The pump and associated components should be inspected systematically, and the findings should be documented.
After any repair or replacement, appropriate commissioning tests should be completed before the system returns to normal operation.
TROUBLESHOOTING BOREHOLE PUMPS IN HOMES
Domestic systems may supply storage tanks or pressurised household plumbing.
If the tank remains empty, check whether the pump is being commanded to start and whether the delivery system is functioning correctly. If the tank fills slowly, compare the filling time with previous performance and measure flow where possible.
For pressurised systems, low pressure should be investigated alongside the pump's operating head, pressure controls, and visible pipework.
The objective is to establish the actual cause rather than replacing the pump based on the symptom alone.
TROUBLESHOOTING BOREHOLE PUMPS ON FARMS
Farm systems may supply irrigation, livestock, and other agricultural activities.
If water delivery decreases, investigate whether the problem affects the entire system or only one distribution section. Check accessible filters, valves, pipework, and pressure controls.
Where irrigation equipment is involved, the required flow and pressure should be compared with the pump's actual performance.
The borehole's sustainable yield must also be considered. A pump that withdraws water too quickly can cause excessive drawdown and unstable operation.
TROUBLESHOOTING COMMERCIAL AND INDUSTRIAL WATER SYSTEMS
Commercial and industrial facilities may rely on borehole water for cleaning, production, cooling, accommodation, or other essential operations.
Troubleshooting should consider the system's operating schedule, water demand, storage capacity, standby arrangements, and pressure requirements.
Where multiple pumps are installed, determine which unit is operating and whether the control system is sequencing the equipment correctly.
Maintenance records and previous test readings can help identify recurring faults and changes in performance.
PREVENTING REPEATED BOREHOLE PUMP FAULTS
Preventive maintenance helps detect problems before they cause a major interruption.
Useful practices include recording flow and pressure readings, inspecting accessible pipework, checking the control panel, reviewing protective-device operation, and monitoring changes in tank-filling time.
Unusual noise, repeated trips, sudden flow reduction, persistent sediment, or changing water levels should be investigated.
The pump should be operated according to the manufacturer's requirements and the borehole's assessed capacity. Regular servicing should follow an appropriate maintenance schedule.
WHY CHOOSE PRO-LOGIC TECHNOLOGIES LIMITED?
Pro-Logic Technologies Limited provides technical support for borehole pump troubleshooting, electrical fault diagnosis, flow and pressure checks, control-system assessment, and maintenance planning.
The process starts with the reported symptoms and available installation information. Suitable tests are then used to identify the likely cause and determine the next steps.
Where the problem requires pump extraction, replacement, or a more detailed borehole assessment, the decision should be guided by the available evidence.
For borehole pump troubleshooting and diagnostics, contact Pro-Logic Technologies Limited on 0723763173.
Website: https://prologictecnologies.co.ke
FREQUENTLY ASKED QUESTIONS
Why does my borehole pump stop unexpectedly?
Possible causes include electrical faults, defective controls, motor problems, low water levels, or protective shutdowns. The cause should be identified before the pump is restarted repeatedly.
Can low water pressure mean the pump is damaged?
Yes, but low pressure can also result from leakage, restricted pipework, control problems, or changes in operating conditions. Flow and pressure measurements can help distinguish between these possibilities.
Should I replace a pump that runs without producing water?
Not automatically. The delivery pipe, valves, water level, and pump condition should be assessed before deciding whether replacement is necessary.
What causes repeated pump trips?
Possible causes include overload, damaged cables, supply problems, motor faults, or unsuitable protection settings. Electrical testing should be performed by a qualified technician.
Can a control panel fault prevent a borehole pump from starting?
Yes. A failed contactor, defective sensor, damaged wiring, or faulty controller may prevent the pump from operating even when the submerged pump is serviceable.
What should I provide when requesting troubleshooting?
Provide the pump model if available, the symptoms, borehole details, the type of control system, and any previous flow, pressure, or electrical readings.
CONTACT PRO-LOGIC TECHNOLOGIES LIMITED
Accurate fault diagnosis helps reduce unnecessary repairs and supports reliable borehole water delivery. Checking the pump, electrical supply, control system, pipework, flow, pressure, and borehole conditions provides a stronger basis for deciding on repairs.
For borehole pump troubleshooting, diagnostics, and performance testing, contact Pro-Logic Technologies Limited on 0723763173.
Visit https://prologictecnologies.co.ke for more information.
Pro-Logic Technologies Limited — Borehole Pump Troubleshooting, Diagnostics and Maintenance.