E01
Intex Low Water Flow / Filter Blockage (alternate code on some models)

Control panel shows E01 and spa stops operating

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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.

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Possible Causes

Heavily clogged Intex filter cartridge, Blocked suction fittings, Air lock in circulation system, Weak circulation pump

How to Fix / Troubleshooting

Safety first: Disconnect power before removing filters or opening any fittings.

  • 1. Clean/replace filter:
    • Remove the filter cartridge and rinse thoroughly.
    • Replace if older than recommended or visibly damaged.
  • 2. Check suction and return:
    • Inspect inside the spa at the suction and return ports for debris.
    • Remove any obstructions by hand.
  • 3. Bleed air:
    • Open the air release valve on the pump until water flows steadily, then close.
  • 4. Restart:
    • Plug in, reset RCD/GFCI, and run filtration.
  • If E01 persists: The circulation pump or flow sensor may be failing; professional diagnosis is recommended.
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Repair Difficulty

Medium 3/5

Required Part

Filter Cartridge
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