Pump starts and stops repeatedly every few seconds without user input.

Safety first: Unplug the pump before touching the motor or wiring.

• Check plug and outlet: Ensure the Bestway plug fits snugly in the outlet. Replace worn outlets that allow movement.
• Inspect for overheating: After a run attempt, carefully feel the motor housing (it may be hot). If extremely hot, allow it to cool and check for blocked ventilation or high load (dirty filter, closed valves).
• Reduce load: Clean the filter and strainer basket, and fully open all valves to reduce backpressure.
• Professional diagnosis: If cycling continues with clean hydraulics and good power, internal motor or PCB faults are likely and require service.