Daily maintenance of solar submersible pumps mainly revolves around four aspects: cleaning, inspection, operating environment maintenance, and long-term shutdown protection. Considering their solar-powered and underwater operation characteristics, special attention must be paid to waterproofing, clogging prevention, and electrical safety.
Key Points of Daily Maintenance: Pre-operation Inspection
Inspect cables and connectors: Carefully inspect power cables and connectors for damage, aging, or exposed wires. Ensure good insulation to prevent leakage or short circuits.
Check the impeller and inlet: Before submerging in water, manually rotate the impeller to ensure it rotates freely without any jamming. Also check the inlet screen for blockages caused by weeds, silt, or debris; clean it if necessary.
Confirm the installation location: Ensure the pump body is completely submerged in water and away from bottom silt and sediment to prevent the intake of impurities that could cause wear or blockage.
Monitoring During Operation
Observe Operating Status: During operation, listen carefully for abnormal noises or severe vibrations from the pump body, as these may be signs of bearing wear, impeller imbalance, or cavitation.
Check Temperature: Although solar pumps usually have protective mechanisms, it is still necessary to monitor whether the motor casing temperature rises abnormally.
Dry Running is Strictly Prohibited: Never start or run the pump when there is no water or the water level is too low, as this will quickly cause the motor to overheat and burn out.
Regular Cleaning and Maintenance
Clean Pump Body and Impeller: Depending on water quality (e.g., turbid water, high sand content), regularly (recommended monthly or quarterly) remove the pump from the water and thoroughly rinse the pump body and impeller with clean water to remove attached scale, algae, or silt.
Check Sealing: Inspect the pump body's sealing rings, O-rings, and other sealing components for aging, cracks, or leaks. Replace any damaged parts promptly to ensure the waterproof safety of internal electrical components.