Pump display shows E05 and the unit shuts down; may occur when voltage supply is unstable.
Safety Warning
This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.
If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.
Possible Causes
How to Fix / Troubleshooting
Safety first: Unplug the pump before inspecting power connections. Do not work on live electrical outlets unless you are qualified.
- Remove extension cords: Plug the Bestway pump directly into a properly grounded outlet. Long, thin extension cords can cause voltage drop and trigger E05.
- Check outlet quality: Inspect the outlet for signs of heat damage or looseness. Try another known‑good outlet on a different circuit if possible.
- Measure voltage (if equipped): Using a multimeter and proper safety precautions, verify that the supply voltage matches the pump’s rating (typically 110–120 V or 220–240 V depending on region). Significant deviation can cause this error.
- Inspect power cord: Check the Bestway pump power cord for cuts, kinks, or crushed sections. If damaged, the cord or entire pump assembly should be replaced.
If E05 persists on a stable power source, the internal power supply circuitry on the control PCB may be faulty and require replacement.
Repair Difficulty
Required Part
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