F2
QCA Spas Extended Filtration or Flow Error

Display shows F2, abnormal filtration or flow condition, spa may not maintain temperature.

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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

Filter cycle set too short or too long, Flow switch tripping during filtration, Circulation pump intermittent

How to Fix / Troubleshooting

Safety: Disconnect power before working on components.

  • Reset filtration program: Set F2 or equivalent to a moderate filtration schedule recommended by QCA Spas (e.g., 2–4 hours twice daily).
  • Monitor flow during filtration: With power on, observe water movement in the spa during a filter cycle. If flow stops and starts, inspect the circulation pump and flow switch.
  • Replace marginal components: If the flow switch or circulation pump is causing intermittent F2 errors, replace the failing part.
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Repair Difficulty

Medium 3/5

Required Part

Flow Switch
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