Display shows 'Hi' and pump may shut down or run noisily.

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

Blocked return line, Closed return valve, Over-sized impeller in Hurlcon pump, Filter multiport valve set incorrectly

Safety: Turn off pump before changing any valve positions.

Check filter valve: Ensure the multiport valve is set to FILTER (or the correct mode) and not CLOSED or RECIRCULATE unintentionally.
Open valves: Confirm all return valves are fully open and that no isolation valves are accidentally closed.
Inspect for obstructions: Check return fittings at the pool for blockages (e.g., toys, leaves).

If 'Hi' persists with normal plumbing, the pump may be incorrectly sized or fitted with the wrong impeller; consult a pool technician.

Medium 3/5

Hurlcon pump impeller and pool return valves

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