Davey variable speed pool pump displays E5 and shuts down shortly after starting.
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: Only qualified persons should open electrical enclosures. Always isolate power at the main switch before removing covers.
Step-by-step checks (user level):
- 1. Check other loads: Turn off or unplug high-current devices (heaters, large pumps) on the same circuit and try running the pump again.
- 2. Inspect visible cabling: Look for obvious damage, crushed conduit, or overheated plugs at the pump supply point.
- 3. Avoid extension leads: Do not run the pump through long, light-duty extension cords; connect directly to a dedicated circuit where possible.
Step-by-step checks (electrician/technician):
- 4. Measure supply voltage: With a multimeter, verify that voltage at the pump terminals is within the range specified on the Davey motor nameplate while the pump is attempting to start.
- 5. Inspect terminals: Tighten any loose connections in the pump terminal box and switchboard, and check for signs of overheating or corrosion.
If E5 persists with correct voltage and sound wiring, the internal drive electronics may be faulty and require replacement.