HI
Davey High Pressure / High Head Condition

Davey pool pump controller shows HI and may reduce speed or shut down.

Advertisements

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.

Advertisements

Possible Causes

Return line blockage, Closed return valve, Oversized pump for plumbing system, Filter multiport valve set incorrectly (e.g. closed or recirculate mis-set)

How to Fix / Troubleshooting

Safety first: Turn off power and relieve pressure before adjusting valves or opening the filter. Use the pressure gauge on your Davey filter to confirm pressure.

Step-by-step checks:

  • 1. Check return valves: Ensure all return line valves are fully open.
  • 2. Verify multiport position: On Davey media filters, confirm the multiport valve handle is firmly in the correct position (e.g. FILTER) and not between settings.
  • 3. Inspect return fittings: Check eyeball fittings and return jets for obstructions such as toys or leaves.
  • 4. Reduce speed: On variable speed models, temporarily reduce speed to lower system pressure while you investigate.

If HI persists with normal plumbing and filter operation, the pressure sensor or controller calibration may be faulty.

Advertisements

Repair Difficulty

Medium 3/5

Required Part

Filter Multiport Valve
Check Price on Amazon

We may earn a commission from links on this page.

Advertisements